* [RFC][PATCH 0/4] stack based kmap_atomic -v2
@ 2009-10-08 23:22 Peter Zijlstra
2009-10-08 23:22 ` Peter Zijlstra
` (6 more replies)
0 siblings, 7 replies; 13+ messages in thread
From: Peter Zijlstra @ 2009-10-08 23:22 UTC (permalink / raw)
To: Linus Torvalds, Andrew Morton, hugh.dickins, Ingo Molnar,
David Howells <dh>
Cc: lkml, linux-arch, Peter Zijlstra
Latest bits..
Maybe FRV can do a kind of kmap-stack switch on (soft)irq enter/exit
in order to stay below 5 entries.
Will continue prodding tomorrow, sleep time here.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [RFC][PATCH 0/4] stack based kmap_atomic -v2
2009-10-08 23:22 [RFC][PATCH 0/4] stack based kmap_atomic -v2 Peter Zijlstra
@ 2009-10-08 23:22 ` Peter Zijlstra
2009-10-08 23:22 ` [RFC][PATCH 1/4] mm: strictly nested kmap_atomic Peter Zijlstra
` (5 subsequent siblings)
6 siblings, 0 replies; 13+ messages in thread
From: Peter Zijlstra @ 2009-10-08 23:22 UTC (permalink / raw)
To: Linus Torvalds, Andrew Morton, hugh.dickins, Ingo Molnar,
David Howells
Cc: lkml, linux-arch, Peter Zijlstra
Latest bits..
Maybe FRV can do a kind of kmap-stack switch on (soft)irq enter/exit
in order to stay below 5 entries.
Will continue prodding tomorrow, sleep time here.
^ permalink raw reply [flat|nested] 13+ messages in thread
* [RFC][PATCH 1/4] mm: strictly nested kmap_atomic
2009-10-08 23:22 [RFC][PATCH 0/4] stack based kmap_atomic -v2 Peter Zijlstra
2009-10-08 23:22 ` Peter Zijlstra
@ 2009-10-08 23:22 ` Peter Zijlstra
2009-10-08 23:22 ` Peter Zijlstra
2009-10-08 23:22 ` [RFC][PATCH 2/4] mm: stack based kmap_atomic Peter Zijlstra
` (4 subsequent siblings)
6 siblings, 1 reply; 13+ messages in thread
From: Peter Zijlstra @ 2009-10-08 23:22 UTC (permalink / raw)
To: Linus Torvalds, Andrew Morton, hugh.dickins, Ingo Molnar,
David Howells <dh>
Cc: lkml, linux-arch, Peter Zijlstra, Peter Zijlstra
[-- Attachment #1: kmap-2.patch --]
[-- Type: text/plain, Size: 3727 bytes --]
Ensure kmap_atomic usage is strictly nested
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
---
crypto/async_tx/async_memcpy.c | 2 +-
crypto/blkcipher.c | 2 +-
drivers/block/loop.c | 4 ++--
include/linux/highmem.h | 4 ++--
kernel/power/snapshot.c | 4 ++--
5 files changed, 8 insertions(+), 8 deletions(-)
Index: linux-2.6/crypto/async_tx/async_memcpy.c
===================================================================
--- linux-2.6.orig/crypto/async_tx/async_memcpy.c
+++ linux-2.6/crypto/async_tx/async_memcpy.c
@@ -83,8 +83,8 @@ async_memcpy(struct page *dest, struct p
memcpy(dest_buf, src_buf, len);
- kunmap_atomic(dest_buf, KM_USER0);
kunmap_atomic(src_buf, KM_USER1);
+ kunmap_atomic(dest_buf, KM_USER0);
async_tx_sync_epilog(submit);
}
Index: linux-2.6/crypto/blkcipher.c
===================================================================
--- linux-2.6.orig/crypto/blkcipher.c
+++ linux-2.6/crypto/blkcipher.c
@@ -89,9 +89,9 @@ static inline unsigned int blkcipher_don
memcpy(walk->dst.virt.addr, walk->page, n);
blkcipher_unmap_dst(walk);
} else if (!(walk->flags & BLKCIPHER_WALK_PHYS)) {
- blkcipher_unmap_src(walk);
if (walk->flags & BLKCIPHER_WALK_DIFF)
blkcipher_unmap_dst(walk);
+ blkcipher_unmap_src(walk);
}
scatterwalk_advance(&walk->in, n);
Index: linux-2.6/drivers/block/loop.c
===================================================================
--- linux-2.6.orig/drivers/block/loop.c
+++ linux-2.6/drivers/block/loop.c
@@ -99,8 +99,8 @@ static int transfer_none(struct loop_dev
else
memcpy(raw_buf, loop_buf, size);
- kunmap_atomic(raw_buf, KM_USER0);
kunmap_atomic(loop_buf, KM_USER1);
+ kunmap_atomic(raw_buf, KM_USER0);
cond_resched();
return 0;
}
@@ -128,8 +128,8 @@ static int transfer_xor(struct loop_devi
for (i = 0; i < size; i++)
*out++ = *in++ ^ key[(i & 511) % keysize];
- kunmap_atomic(raw_buf, KM_USER0);
kunmap_atomic(loop_buf, KM_USER1);
+ kunmap_atomic(raw_buf, KM_USER0);
cond_resched();
return 0;
}
Index: linux-2.6/include/linux/highmem.h
===================================================================
--- linux-2.6.orig/include/linux/highmem.h
+++ linux-2.6/include/linux/highmem.h
@@ -191,8 +191,8 @@ static inline void copy_user_highpage(st
vfrom = kmap_atomic(from, KM_USER0);
vto = kmap_atomic(to, KM_USER1);
copy_user_page(vto, vfrom, vaddr, to);
- kunmap_atomic(vfrom, KM_USER0);
kunmap_atomic(vto, KM_USER1);
+ kunmap_atomic(vfrom, KM_USER0);
}
#endif
@@ -204,8 +204,8 @@ static inline void copy_highpage(struct
vfrom = kmap_atomic(from, KM_USER0);
vto = kmap_atomic(to, KM_USER1);
copy_page(vto, vfrom);
- kunmap_atomic(vfrom, KM_USER0);
kunmap_atomic(vto, KM_USER1);
+ kunmap_atomic(vfrom, KM_USER0);
}
#endif /* _LINUX_HIGHMEM_H */
Index: linux-2.6/kernel/power/snapshot.c
===================================================================
--- linux-2.6.orig/kernel/power/snapshot.c
+++ linux-2.6/kernel/power/snapshot.c
@@ -978,8 +978,8 @@ static void copy_data_page(unsigned long
src = kmap_atomic(s_page, KM_USER0);
dst = kmap_atomic(d_page, KM_USER1);
do_copy_page(dst, src);
- kunmap_atomic(src, KM_USER0);
kunmap_atomic(dst, KM_USER1);
+ kunmap_atomic(src, KM_USER0);
} else {
if (PageHighMem(d_page)) {
/* Page pointed to by src may contain some kernel
@@ -2253,8 +2253,8 @@ swap_two_pages_data(struct page *p1, str
memcpy(buf, kaddr1, PAGE_SIZE);
memcpy(kaddr1, kaddr2, PAGE_SIZE);
memcpy(kaddr2, buf, PAGE_SIZE);
- kunmap_atomic(kaddr1, KM_USER0);
kunmap_atomic(kaddr2, KM_USER1);
+ kunmap_atomic(kaddr1, KM_USER0);
}
/**
--
^ permalink raw reply [flat|nested] 13+ messages in thread
* [RFC][PATCH 1/4] mm: strictly nested kmap_atomic
2009-10-08 23:22 ` [RFC][PATCH 1/4] mm: strictly nested kmap_atomic Peter Zijlstra
@ 2009-10-08 23:22 ` Peter Zijlstra
0 siblings, 0 replies; 13+ messages in thread
From: Peter Zijlstra @ 2009-10-08 23:22 UTC (permalink / raw)
To: Linus Torvalds, Andrew Morton, hugh.dickins, Ingo Molnar,
David Howells
Cc: lkml, linux-arch, Peter Zijlstra, Peter Zijlstra
[-- Attachment #1: kmap-2.patch --]
[-- Type: text/plain, Size: 3728 bytes --]
Ensure kmap_atomic usage is strictly nested
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
---
crypto/async_tx/async_memcpy.c | 2 +-
crypto/blkcipher.c | 2 +-
drivers/block/loop.c | 4 ++--
include/linux/highmem.h | 4 ++--
kernel/power/snapshot.c | 4 ++--
5 files changed, 8 insertions(+), 8 deletions(-)
Index: linux-2.6/crypto/async_tx/async_memcpy.c
===================================================================
--- linux-2.6.orig/crypto/async_tx/async_memcpy.c
+++ linux-2.6/crypto/async_tx/async_memcpy.c
@@ -83,8 +83,8 @@ async_memcpy(struct page *dest, struct p
memcpy(dest_buf, src_buf, len);
- kunmap_atomic(dest_buf, KM_USER0);
kunmap_atomic(src_buf, KM_USER1);
+ kunmap_atomic(dest_buf, KM_USER0);
async_tx_sync_epilog(submit);
}
Index: linux-2.6/crypto/blkcipher.c
===================================================================
--- linux-2.6.orig/crypto/blkcipher.c
+++ linux-2.6/crypto/blkcipher.c
@@ -89,9 +89,9 @@ static inline unsigned int blkcipher_don
memcpy(walk->dst.virt.addr, walk->page, n);
blkcipher_unmap_dst(walk);
} else if (!(walk->flags & BLKCIPHER_WALK_PHYS)) {
- blkcipher_unmap_src(walk);
if (walk->flags & BLKCIPHER_WALK_DIFF)
blkcipher_unmap_dst(walk);
+ blkcipher_unmap_src(walk);
}
scatterwalk_advance(&walk->in, n);
Index: linux-2.6/drivers/block/loop.c
===================================================================
--- linux-2.6.orig/drivers/block/loop.c
+++ linux-2.6/drivers/block/loop.c
@@ -99,8 +99,8 @@ static int transfer_none(struct loop_dev
else
memcpy(raw_buf, loop_buf, size);
- kunmap_atomic(raw_buf, KM_USER0);
kunmap_atomic(loop_buf, KM_USER1);
+ kunmap_atomic(raw_buf, KM_USER0);
cond_resched();
return 0;
}
@@ -128,8 +128,8 @@ static int transfer_xor(struct loop_devi
for (i = 0; i < size; i++)
*out++ = *in++ ^ key[(i & 511) % keysize];
- kunmap_atomic(raw_buf, KM_USER0);
kunmap_atomic(loop_buf, KM_USER1);
+ kunmap_atomic(raw_buf, KM_USER0);
cond_resched();
return 0;
}
Index: linux-2.6/include/linux/highmem.h
===================================================================
--- linux-2.6.orig/include/linux/highmem.h
+++ linux-2.6/include/linux/highmem.h
@@ -191,8 +191,8 @@ static inline void copy_user_highpage(st
vfrom = kmap_atomic(from, KM_USER0);
vto = kmap_atomic(to, KM_USER1);
copy_user_page(vto, vfrom, vaddr, to);
- kunmap_atomic(vfrom, KM_USER0);
kunmap_atomic(vto, KM_USER1);
+ kunmap_atomic(vfrom, KM_USER0);
}
#endif
@@ -204,8 +204,8 @@ static inline void copy_highpage(struct
vfrom = kmap_atomic(from, KM_USER0);
vto = kmap_atomic(to, KM_USER1);
copy_page(vto, vfrom);
- kunmap_atomic(vfrom, KM_USER0);
kunmap_atomic(vto, KM_USER1);
+ kunmap_atomic(vfrom, KM_USER0);
}
#endif /* _LINUX_HIGHMEM_H */
Index: linux-2.6/kernel/power/snapshot.c
===================================================================
--- linux-2.6.orig/kernel/power/snapshot.c
+++ linux-2.6/kernel/power/snapshot.c
@@ -978,8 +978,8 @@ static void copy_data_page(unsigned long
src = kmap_atomic(s_page, KM_USER0);
dst = kmap_atomic(d_page, KM_USER1);
do_copy_page(dst, src);
- kunmap_atomic(src, KM_USER0);
kunmap_atomic(dst, KM_USER1);
+ kunmap_atomic(src, KM_USER0);
} else {
if (PageHighMem(d_page)) {
/* Page pointed to by src may contain some kernel
@@ -2253,8 +2253,8 @@ swap_two_pages_data(struct page *p1, str
memcpy(buf, kaddr1, PAGE_SIZE);
memcpy(kaddr1, kaddr2, PAGE_SIZE);
memcpy(kaddr2, buf, PAGE_SIZE);
- kunmap_atomic(kaddr1, KM_USER0);
kunmap_atomic(kaddr2, KM_USER1);
+ kunmap_atomic(kaddr1, KM_USER0);
}
/**
--
^ permalink raw reply [flat|nested] 13+ messages in thread
* [RFC][PATCH 2/4] mm: stack based kmap_atomic
2009-10-08 23:22 [RFC][PATCH 0/4] stack based kmap_atomic -v2 Peter Zijlstra
2009-10-08 23:22 ` Peter Zijlstra
2009-10-08 23:22 ` [RFC][PATCH 1/4] mm: strictly nested kmap_atomic Peter Zijlstra
@ 2009-10-08 23:22 ` Peter Zijlstra
2009-10-08 23:22 ` Peter Zijlstra
2009-10-19 3:08 ` Raja R Harinath
2009-10-08 23:22 ` [RFC][PATCH 3/4] mm: remove KM_type argument Peter Zijlstra
` (3 subsequent siblings)
6 siblings, 2 replies; 13+ messages in thread
From: Peter Zijlstra @ 2009-10-08 23:22 UTC (permalink / raw)
To: Linus Torvalds, Andrew Morton, hugh.dickins, Ingo Molnar,
David Howells <dh>
Cc: lkml, linux-arch, Peter Zijlstra, Peter Zijlstra
[-- Attachment #1: kmap-1.patch --]
[-- Type: text/plain, Size: 12472 bytes --]
Keep the current interface but ignore the KM_type and use a stack
based approach.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
---
arch/arm/mm/highmem.c | 8 +++++-
arch/frv/include/asm/highmem.h | 3 +-
arch/mips/mm/highmem.c | 11 ++++++--
arch/mn10300/include/asm/highmem.h | 10 ++++++-
arch/powerpc/mm/highmem.c | 10 ++++++-
arch/sparc/mm/highmem.c | 9 +++++-
arch/x86/mm/highmem_32.c | 24 +++++++++++++++---
arch/x86/mm/iomap_32.c | 16 ------------
include/linux/highmem.h | 32 +++++++++++++++---------
mm/highmem.c | 49 +++----------------------------------
10 files changed, 85 insertions(+), 87 deletions(-)
Index: linux-2.6/arch/arm/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/highmem.c
+++ linux-2.6/arch/arm/mm/highmem.c
@@ -50,6 +50,8 @@ void *kmap_atomic(struct page *page, enu
if (kmap)
return kmap;
+ type = kmap_atomic_idx_push();
+
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -74,7 +76,10 @@ EXPORT_SYMBOL(kmap_atomic);
void kunmap_atomic(void *kvaddr, enum km_type type)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- unsigned int idx = type + KM_TYPE_NR * smp_processor_id();
+ unsigned int idx;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR * smp_processor_id();
if (kvaddr >= (void *)FIXADDR_START) {
__cpuc_flush_dcache_page((void *)vaddr);
@@ -100,6 +105,7 @@ void *kmap_atomic_pfn(unsigned long pfn,
pagefault_disable();
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
Index: linux-2.6/arch/frv/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/frv/include/asm/highmem.h
+++ linux-2.6/arch/frv/include/asm/highmem.h
@@ -117,7 +117,7 @@ static inline void *kmap_atomic(struct p
unsigned long paddr;
pagefault_disable();
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
paddr = page_to_phys(page);
switch (type) {
@@ -154,6 +154,7 @@ do { \
static inline void kunmap_atomic(void *kvaddr, enum km_type type)
{
+ type = kmap_atomic_idx_pop();
switch (type) {
case 0: __kunmap_atomic_primary(0, 2); break;
case 1: __kunmap_atomic_primary(1, 3); break;
Index: linux-2.6/arch/mips/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/mips/mm/highmem.c
+++ linux-2.6/arch/mips/mm/highmem.c
@@ -50,7 +50,7 @@ void *__kmap_atomic(struct page *page, e
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -63,7 +63,7 @@ void *__kmap_atomic(struct page *page, e
}
EXPORT_SYMBOL(__kmap_atomic);
-void __kunmap_atomic(void *kvaddr, enum km_type type)
+static void __debug_kunmap_atomic(void *kvaddr, enum km_type type)
{
#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
@@ -83,7 +83,12 @@ void __kunmap_atomic(void *kvaddr, enum
pte_clear(&init_mm, vaddr, kmap_pte-idx);
local_flush_tlb_one(vaddr);
#endif
+}
+void __kunmap_atomic(void *kvaddr, enum km_type type)
+{
+ type = kmap_atomic_idx_pop();
+ __debug_kunmap_atomic(kvaddr, type);
pagefault_enable();
}
EXPORT_SYMBOL(__kunmap_atomic);
@@ -99,7 +104,7 @@ void *kmap_atomic_pfn(unsigned long pfn,
pagefault_disable();
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte-idx, pfn_pte(pfn, PAGE_KERNEL));
Index: linux-2.6/arch/mn10300/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/mn10300/include/asm/highmem.h
+++ linux-2.6/arch/mn10300/include/asm/highmem.h
@@ -78,7 +78,7 @@ static inline unsigned long kmap_atomic(
if (page < highmem_start_page)
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#if HIGHMEM_DEBUG
@@ -91,7 +91,7 @@ static inline unsigned long kmap_atomic(
return vaddr;
}
-static inline void kunmap_atomic(unsigned long vaddr, enum km_type type)
+static inline void debug_kunmap_atomic(unsigned long vaddr, enum km_type type)
{
#if HIGHMEM_DEBUG
enum fixed_addresses idx = type + KM_TYPE_NR * smp_processor_id();
@@ -111,6 +111,12 @@ static inline void kunmap_atomic(unsigne
#endif
}
+static inline void kunmap_atomic(unsigned long vaddr, enum km_type type)
+{
+ type = kmap_atomic_idx_pop();
+ debug_kunmap_atomic(vaddr, type);
+}
+
#endif /* __KERNEL__ */
#endif /* _ASM_HIGHMEM_H */
Index: linux-2.6/arch/powerpc/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/powerpc/mm/highmem.c
+++ linux-2.6/arch/powerpc/mm/highmem.c
@@ -39,7 +39,7 @@ void *kmap_atomic_prot(struct page *page
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -52,7 +52,7 @@ void *kmap_atomic_prot(struct page *page
}
EXPORT_SYMBOL(kmap_atomic_prot);
-void kunmap_atomic(void *kvaddr, enum km_type type)
+static void debug_kunmap_atomic(void *kvaddr, enum km_type type)
{
#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
@@ -72,6 +72,12 @@ void kunmap_atomic(void *kvaddr, enum km
pte_clear(&init_mm, vaddr, kmap_pte-idx);
local_flush_tlb_page(NULL, vaddr);
#endif
+}
+
+void kunmap_atomic(void *kvaddr, enum km_type type)
+{
+ type = kmap_atomic_idx_pop();
+ debug_kunmap_atomic(kvaddr, type);
pagefault_enable();
}
EXPORT_SYMBOL(kunmap_atomic);
Index: linux-2.6/arch/sparc/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/sparc/mm/highmem.c
+++ linux-2.6/arch/sparc/mm/highmem.c
@@ -39,7 +39,7 @@ void *kmap_atomic(struct page *page, enu
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
@@ -65,7 +65,7 @@ void *kmap_atomic(struct page *page, enu
}
EXPORT_SYMBOL(kmap_atomic);
-void kunmap_atomic(void *kvaddr, enum km_type type)
+static void debug_kunmap_atomic(void *kvaddr, enum km_type type)
{
#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
@@ -97,7 +97,12 @@ void kunmap_atomic(void *kvaddr, enum km
flush_tlb_all();
#endif
#endif
+}
+void kunmap_atomic(void *kvaddr, enum km_type type)
+{
+ type = kmap_atomic_idx_pop();
+ debug_kunmap_atomic(kvaddr, type);
pagefault_enable();
}
EXPORT_SYMBOL(kunmap_atomic);
Index: linux-2.6/arch/x86/mm/highmem_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/highmem_32.c
+++ linux-2.6/arch/x86/mm/highmem_32.c
@@ -38,8 +38,7 @@ void *kmap_atomic_prot(struct page *page
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
-
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
BUG_ON(!pte_none(*(kmap_pte-idx)));
@@ -56,7 +55,10 @@ void *kmap_atomic(struct page *page, enu
void kunmap_atomic(void *kvaddr, enum km_type type)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+ enum fixed_addresses idx;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR*smp_processor_id();
/*
* Force other mappings to Oops if they'll try to access this pte
@@ -80,6 +82,22 @@ void kunmap_atomic(void *kvaddr, enum km
* This is the same as kmap_atomic() but can map memory that doesn't
* have a struct page associated with it.
*/
+void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+{
+ enum fixed_addresses idx;
+ unsigned long vaddr;
+
+ pagefault_disable();
+
+ type = kmap_atomic_idx_push();
+ idx = type + KM_TYPE_NR * smp_processor_id();
+ vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
+ set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
+ arch_flush_lazy_mmu_mode();
+
+ return (void *)vaddr;
+}
+
void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
{
return kmap_atomic_prot_pfn(pfn, type, kmap_prot);
Index: linux-2.6/include/linux/highmem.h
===================================================================
--- linux-2.6.orig/include/linux/highmem.h
+++ linux-2.6/include/linux/highmem.h
@@ -21,18 +21,6 @@ static inline void flush_kernel_dcache_p
#include <asm/kmap_types.h>
-#if defined(CONFIG_DEBUG_HIGHMEM) && defined(CONFIG_TRACE_IRQFLAGS_SUPPORT)
-
-void debug_kmap_atomic(enum km_type type);
-
-#else
-
-static inline void debug_kmap_atomic(enum km_type type)
-{
-}
-
-#endif
-
#ifdef CONFIG_HIGHMEM
#include <asm/highmem.h>
@@ -42,6 +30,26 @@ extern unsigned long totalhigh_pages;
void kmap_flush_unused(void);
+DECLARE_PER_CPU(int, __kmap_atomic_idx);
+
+static inline int kmap_atomic_idx_push(void)
+{
+ int idx = __get_cpu_var(__kmap_atomic_idx)++;
+#ifdef CONFIG_DEBUG_HIGHMEM
+ BUG_ON(idx > KM_TYPE_NR);
+#endif
+ return idx;
+}
+
+static inline int kmap_atomic_idx_pop(void)
+{
+ int idx = --__get_cpu_var(__kmap_atomic_idx);
+#ifdef CONFIG_DEBUG_HIGHMEM
+ BUG_ON(idx < 0);
+#endif
+ return idx;
+}
+
#else /* CONFIG_HIGHMEM */
static inline unsigned int nr_free_highpages(void) { return 0; }
Index: linux-2.6/mm/highmem.c
===================================================================
--- linux-2.6.orig/mm/highmem.c
+++ linux-2.6/mm/highmem.c
@@ -41,6 +41,10 @@
unsigned long totalhigh_pages __read_mostly;
EXPORT_SYMBOL(totalhigh_pages);
+
+DEFINE_PER_CPU(int, __kmap_atomic_idx);
+EXPORT_PER_CPU_SYMBOL_GPL(__kmap_atomic_idx);
+
unsigned int nr_free_highpages (void)
{
pg_data_t *pgdat;
@@ -421,48 +425,3 @@ void __init page_address_init(void)
}
#endif /* defined(CONFIG_HIGHMEM) && !defined(WANT_PAGE_VIRTUAL) */
-
-#if defined(CONFIG_DEBUG_HIGHMEM) && defined(CONFIG_TRACE_IRQFLAGS_SUPPORT)
-
-void debug_kmap_atomic(enum km_type type)
-{
- static unsigned warn_count = 10;
-
- if (unlikely(warn_count == 0))
- return;
-
- if (unlikely(in_interrupt())) {
- if (in_irq()) {
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_BIO_SRC_IRQ && type != KM_BIO_DST_IRQ &&
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (!irqs_disabled()) { /* softirq */
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_SOFTIRQ0 && type != KM_SOFTIRQ1 &&
- type != KM_SKB_SUNRPC_DATA &&
- type != KM_SKB_DATA_SOFTIRQ &&
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- }
- }
-
- if (type == KM_IRQ0 || type == KM_IRQ1 || type == KM_BOUNCE_READ ||
- type == KM_BIO_SRC_IRQ || type == KM_BIO_DST_IRQ) {
- if (!irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (type == KM_SOFTIRQ0 || type == KM_SOFTIRQ1) {
- if (irq_count() == 0 && !irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- }
-}
-
-#endif
Index: linux-2.6/arch/x86/mm/iomap_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/iomap_32.c
+++ linux-2.6/arch/x86/mm/iomap_32.c
@@ -55,22 +55,6 @@ iomap_free(resource_size_t base, unsigne
}
EXPORT_SYMBOL_GPL(iomap_free);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
-{
- enum fixed_addresses idx;
- unsigned long vaddr;
-
- pagefault_disable();
-
- debug_kmap_atomic(type);
- idx = type + KM_TYPE_NR * smp_processor_id();
- vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
- set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
- arch_flush_lazy_mmu_mode();
-
- return (void *)vaddr;
-}
-
/*
* Map 'pfn' using fixed map 'type' and protections 'prot'
*/
--
^ permalink raw reply [flat|nested] 13+ messages in thread
* [RFC][PATCH 2/4] mm: stack based kmap_atomic
2009-10-08 23:22 ` [RFC][PATCH 2/4] mm: stack based kmap_atomic Peter Zijlstra
@ 2009-10-08 23:22 ` Peter Zijlstra
2009-10-19 3:08 ` Raja R Harinath
1 sibling, 0 replies; 13+ messages in thread
From: Peter Zijlstra @ 2009-10-08 23:22 UTC (permalink / raw)
To: Linus Torvalds, Andrew Morton, hugh.dickins, Ingo Molnar,
David Howells
Cc: lkml, linux-arch, Peter Zijlstra, Peter Zijlstra
[-- Attachment #1: kmap-1.patch --]
[-- Type: text/plain, Size: 12473 bytes --]
Keep the current interface but ignore the KM_type and use a stack
based approach.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
---
arch/arm/mm/highmem.c | 8 +++++-
arch/frv/include/asm/highmem.h | 3 +-
arch/mips/mm/highmem.c | 11 ++++++--
arch/mn10300/include/asm/highmem.h | 10 ++++++-
arch/powerpc/mm/highmem.c | 10 ++++++-
arch/sparc/mm/highmem.c | 9 +++++-
arch/x86/mm/highmem_32.c | 24 +++++++++++++++---
arch/x86/mm/iomap_32.c | 16 ------------
include/linux/highmem.h | 32 +++++++++++++++---------
mm/highmem.c | 49 +++----------------------------------
10 files changed, 85 insertions(+), 87 deletions(-)
Index: linux-2.6/arch/arm/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/highmem.c
+++ linux-2.6/arch/arm/mm/highmem.c
@@ -50,6 +50,8 @@ void *kmap_atomic(struct page *page, enu
if (kmap)
return kmap;
+ type = kmap_atomic_idx_push();
+
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -74,7 +76,10 @@ EXPORT_SYMBOL(kmap_atomic);
void kunmap_atomic(void *kvaddr, enum km_type type)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- unsigned int idx = type + KM_TYPE_NR * smp_processor_id();
+ unsigned int idx;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR * smp_processor_id();
if (kvaddr >= (void *)FIXADDR_START) {
__cpuc_flush_dcache_page((void *)vaddr);
@@ -100,6 +105,7 @@ void *kmap_atomic_pfn(unsigned long pfn,
pagefault_disable();
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
Index: linux-2.6/arch/frv/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/frv/include/asm/highmem.h
+++ linux-2.6/arch/frv/include/asm/highmem.h
@@ -117,7 +117,7 @@ static inline void *kmap_atomic(struct p
unsigned long paddr;
pagefault_disable();
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
paddr = page_to_phys(page);
switch (type) {
@@ -154,6 +154,7 @@ do { \
static inline void kunmap_atomic(void *kvaddr, enum km_type type)
{
+ type = kmap_atomic_idx_pop();
switch (type) {
case 0: __kunmap_atomic_primary(0, 2); break;
case 1: __kunmap_atomic_primary(1, 3); break;
Index: linux-2.6/arch/mips/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/mips/mm/highmem.c
+++ linux-2.6/arch/mips/mm/highmem.c
@@ -50,7 +50,7 @@ void *__kmap_atomic(struct page *page, e
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -63,7 +63,7 @@ void *__kmap_atomic(struct page *page, e
}
EXPORT_SYMBOL(__kmap_atomic);
-void __kunmap_atomic(void *kvaddr, enum km_type type)
+static void __debug_kunmap_atomic(void *kvaddr, enum km_type type)
{
#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
@@ -83,7 +83,12 @@ void __kunmap_atomic(void *kvaddr, enum
pte_clear(&init_mm, vaddr, kmap_pte-idx);
local_flush_tlb_one(vaddr);
#endif
+}
+void __kunmap_atomic(void *kvaddr, enum km_type type)
+{
+ type = kmap_atomic_idx_pop();
+ __debug_kunmap_atomic(kvaddr, type);
pagefault_enable();
}
EXPORT_SYMBOL(__kunmap_atomic);
@@ -99,7 +104,7 @@ void *kmap_atomic_pfn(unsigned long pfn,
pagefault_disable();
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
set_pte(kmap_pte-idx, pfn_pte(pfn, PAGE_KERNEL));
Index: linux-2.6/arch/mn10300/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/mn10300/include/asm/highmem.h
+++ linux-2.6/arch/mn10300/include/asm/highmem.h
@@ -78,7 +78,7 @@ static inline unsigned long kmap_atomic(
if (page < highmem_start_page)
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR * smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#if HIGHMEM_DEBUG
@@ -91,7 +91,7 @@ static inline unsigned long kmap_atomic(
return vaddr;
}
-static inline void kunmap_atomic(unsigned long vaddr, enum km_type type)
+static inline void debug_kunmap_atomic(unsigned long vaddr, enum km_type type)
{
#if HIGHMEM_DEBUG
enum fixed_addresses idx = type + KM_TYPE_NR * smp_processor_id();
@@ -111,6 +111,12 @@ static inline void kunmap_atomic(unsigne
#endif
}
+static inline void kunmap_atomic(unsigned long vaddr, enum km_type type)
+{
+ type = kmap_atomic_idx_pop();
+ debug_kunmap_atomic(vaddr, type);
+}
+
#endif /* __KERNEL__ */
#endif /* _ASM_HIGHMEM_H */
Index: linux-2.6/arch/powerpc/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/powerpc/mm/highmem.c
+++ linux-2.6/arch/powerpc/mm/highmem.c
@@ -39,7 +39,7 @@ void *kmap_atomic_prot(struct page *page
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
#ifdef CONFIG_DEBUG_HIGHMEM
@@ -52,7 +52,7 @@ void *kmap_atomic_prot(struct page *page
}
EXPORT_SYMBOL(kmap_atomic_prot);
-void kunmap_atomic(void *kvaddr, enum km_type type)
+static void debug_kunmap_atomic(void *kvaddr, enum km_type type)
{
#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
@@ -72,6 +72,12 @@ void kunmap_atomic(void *kvaddr, enum km
pte_clear(&init_mm, vaddr, kmap_pte-idx);
local_flush_tlb_page(NULL, vaddr);
#endif
+}
+
+void kunmap_atomic(void *kvaddr, enum km_type type)
+{
+ type = kmap_atomic_idx_pop();
+ debug_kunmap_atomic(kvaddr, type);
pagefault_enable();
}
EXPORT_SYMBOL(kunmap_atomic);
Index: linux-2.6/arch/sparc/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/sparc/mm/highmem.c
+++ linux-2.6/arch/sparc/mm/highmem.c
@@ -39,7 +39,7 @@ void *kmap_atomic(struct page *page, enu
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
@@ -65,7 +65,7 @@ void *kmap_atomic(struct page *page, enu
}
EXPORT_SYMBOL(kmap_atomic);
-void kunmap_atomic(void *kvaddr, enum km_type type)
+static void debug_kunmap_atomic(void *kvaddr, enum km_type type)
{
#ifdef CONFIG_DEBUG_HIGHMEM
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
@@ -97,7 +97,12 @@ void kunmap_atomic(void *kvaddr, enum km
flush_tlb_all();
#endif
#endif
+}
+void kunmap_atomic(void *kvaddr, enum km_type type)
+{
+ type = kmap_atomic_idx_pop();
+ debug_kunmap_atomic(kvaddr, type);
pagefault_enable();
}
EXPORT_SYMBOL(kunmap_atomic);
Index: linux-2.6/arch/x86/mm/highmem_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/highmem_32.c
+++ linux-2.6/arch/x86/mm/highmem_32.c
@@ -38,8 +38,7 @@ void *kmap_atomic_prot(struct page *page
if (!PageHighMem(page))
return page_address(page);
- debug_kmap_atomic(type);
-
+ type = kmap_atomic_idx_push();
idx = type + KM_TYPE_NR*smp_processor_id();
vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
BUG_ON(!pte_none(*(kmap_pte-idx)));
@@ -56,7 +55,10 @@ void *kmap_atomic(struct page *page, enu
void kunmap_atomic(void *kvaddr, enum km_type type)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
+ enum fixed_addresses idx;
+
+ type = kmap_atomic_idx_pop();
+ idx = type + KM_TYPE_NR*smp_processor_id();
/*
* Force other mappings to Oops if they'll try to access this pte
@@ -80,6 +82,22 @@ void kunmap_atomic(void *kvaddr, enum km
* This is the same as kmap_atomic() but can map memory that doesn't
* have a struct page associated with it.
*/
+void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+{
+ enum fixed_addresses idx;
+ unsigned long vaddr;
+
+ pagefault_disable();
+
+ type = kmap_atomic_idx_push();
+ idx = type + KM_TYPE_NR * smp_processor_id();
+ vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
+ set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
+ arch_flush_lazy_mmu_mode();
+
+ return (void *)vaddr;
+}
+
void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
{
return kmap_atomic_prot_pfn(pfn, type, kmap_prot);
Index: linux-2.6/include/linux/highmem.h
===================================================================
--- linux-2.6.orig/include/linux/highmem.h
+++ linux-2.6/include/linux/highmem.h
@@ -21,18 +21,6 @@ static inline void flush_kernel_dcache_p
#include <asm/kmap_types.h>
-#if defined(CONFIG_DEBUG_HIGHMEM) && defined(CONFIG_TRACE_IRQFLAGS_SUPPORT)
-
-void debug_kmap_atomic(enum km_type type);
-
-#else
-
-static inline void debug_kmap_atomic(enum km_type type)
-{
-}
-
-#endif
-
#ifdef CONFIG_HIGHMEM
#include <asm/highmem.h>
@@ -42,6 +30,26 @@ extern unsigned long totalhigh_pages;
void kmap_flush_unused(void);
+DECLARE_PER_CPU(int, __kmap_atomic_idx);
+
+static inline int kmap_atomic_idx_push(void)
+{
+ int idx = __get_cpu_var(__kmap_atomic_idx)++;
+#ifdef CONFIG_DEBUG_HIGHMEM
+ BUG_ON(idx > KM_TYPE_NR);
+#endif
+ return idx;
+}
+
+static inline int kmap_atomic_idx_pop(void)
+{
+ int idx = --__get_cpu_var(__kmap_atomic_idx);
+#ifdef CONFIG_DEBUG_HIGHMEM
+ BUG_ON(idx < 0);
+#endif
+ return idx;
+}
+
#else /* CONFIG_HIGHMEM */
static inline unsigned int nr_free_highpages(void) { return 0; }
Index: linux-2.6/mm/highmem.c
===================================================================
--- linux-2.6.orig/mm/highmem.c
+++ linux-2.6/mm/highmem.c
@@ -41,6 +41,10 @@
unsigned long totalhigh_pages __read_mostly;
EXPORT_SYMBOL(totalhigh_pages);
+
+DEFINE_PER_CPU(int, __kmap_atomic_idx);
+EXPORT_PER_CPU_SYMBOL_GPL(__kmap_atomic_idx);
+
unsigned int nr_free_highpages (void)
{
pg_data_t *pgdat;
@@ -421,48 +425,3 @@ void __init page_address_init(void)
}
#endif /* defined(CONFIG_HIGHMEM) && !defined(WANT_PAGE_VIRTUAL) */
-
-#if defined(CONFIG_DEBUG_HIGHMEM) && defined(CONFIG_TRACE_IRQFLAGS_SUPPORT)
-
-void debug_kmap_atomic(enum km_type type)
-{
- static unsigned warn_count = 10;
-
- if (unlikely(warn_count == 0))
- return;
-
- if (unlikely(in_interrupt())) {
- if (in_irq()) {
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_BIO_SRC_IRQ && type != KM_BIO_DST_IRQ &&
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (!irqs_disabled()) { /* softirq */
- if (type != KM_IRQ0 && type != KM_IRQ1 &&
- type != KM_SOFTIRQ0 && type != KM_SOFTIRQ1 &&
- type != KM_SKB_SUNRPC_DATA &&
- type != KM_SKB_DATA_SOFTIRQ &&
- type != KM_BOUNCE_READ) {
- WARN_ON(1);
- warn_count--;
- }
- }
- }
-
- if (type == KM_IRQ0 || type == KM_IRQ1 || type == KM_BOUNCE_READ ||
- type == KM_BIO_SRC_IRQ || type == KM_BIO_DST_IRQ) {
- if (!irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- } else if (type == KM_SOFTIRQ0 || type == KM_SOFTIRQ1) {
- if (irq_count() == 0 && !irqs_disabled()) {
- WARN_ON(1);
- warn_count--;
- }
- }
-}
-
-#endif
Index: linux-2.6/arch/x86/mm/iomap_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/iomap_32.c
+++ linux-2.6/arch/x86/mm/iomap_32.c
@@ -55,22 +55,6 @@ iomap_free(resource_size_t base, unsigne
}
EXPORT_SYMBOL_GPL(iomap_free);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
-{
- enum fixed_addresses idx;
- unsigned long vaddr;
-
- pagefault_disable();
-
- debug_kmap_atomic(type);
- idx = type + KM_TYPE_NR * smp_processor_id();
- vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx);
- set_pte(kmap_pte - idx, pfn_pte(pfn, prot));
- arch_flush_lazy_mmu_mode();
-
- return (void *)vaddr;
-}
-
/*
* Map 'pfn' using fixed map 'type' and protections 'prot'
*/
--
^ permalink raw reply [flat|nested] 13+ messages in thread
* [RFC][PATCH 3/4] mm: remove KM_type argument
2009-10-08 23:22 [RFC][PATCH 0/4] stack based kmap_atomic -v2 Peter Zijlstra
` (2 preceding siblings ...)
2009-10-08 23:22 ` [RFC][PATCH 2/4] mm: stack based kmap_atomic Peter Zijlstra
@ 2009-10-08 23:22 ` Peter Zijlstra
2009-10-08 23:22 ` [RFC][PATCH 4/4] mm: remove KM_type argument fallout Peter Zijlstra
` (2 subsequent siblings)
6 siblings, 0 replies; 13+ messages in thread
From: Peter Zijlstra @ 2009-10-08 23:22 UTC (permalink / raw)
To: Linus Torvalds, Andrew Morton, hugh.dickins, Ingo Molnar,
David Howells <dh>
Cc: lkml, linux-arch, Peter Zijlstra, Peter Zijlstra
[-- Attachment #1: kmap-4.patch --]
[-- Type: text/plain, Size: 217050 bytes --]
Mostly mechanical removal of KM_type
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
---
arch/arm/include/asm/highmem.h | 6 -
arch/arm/include/asm/pgtable.h | 8 +-
arch/arm/mm/copypage-fa.c | 12 +--
arch/arm/mm/copypage-feroceon.c | 12 +--
arch/arm/mm/copypage-v3.c | 12 +--
arch/arm/mm/copypage-v4mc.c | 8 +-
arch/arm/mm/copypage-v4wb.c | 12 +--
arch/arm/mm/copypage-v4wt.c | 12 +--
arch/arm/mm/copypage-v6.c | 12 +--
arch/arm/mm/copypage-xsc3.c | 12 +--
arch/arm/mm/copypage-xscale.c | 8 +-
arch/arm/mm/highmem.c | 6 -
arch/frv/include/asm/highmem.h | 4 -
arch/frv/include/asm/pgtable.h | 8 +-
arch/microblaze/include/asm/pgtable.h | 8 +-
arch/mips/include/asm/highmem.h | 6 -
arch/mips/mm/c-r4k.c | 4 -
arch/mips/mm/highmem.c | 8 +-
arch/mips/mm/init.c | 8 +-
arch/mn10300/include/asm/highmem.h | 6 -
arch/powerpc/include/asm/highmem.h | 8 +-
arch/powerpc/include/asm/pgtable-ppc32.h | 8 +-
arch/powerpc/mm/dma-noncoherent.c | 2
arch/powerpc/mm/highmem.c | 8 +-
arch/powerpc/mm/mem.c | 4 -
arch/sh/mm/cache.c | 12 +--
arch/sparc/include/asm/highmem.h | 4 -
arch/sparc/mm/highmem.c | 8 +-
arch/um/kernel/skas/uaccess.c | 4 -
arch/x86/include/asm/highmem.h | 10 +--
arch/x86/include/asm/iomap.h | 4 -
arch/x86/include/asm/paravirt.h | 2
arch/x86/include/asm/paravirt_types.h | 2
arch/x86/include/asm/pgtable_32.h | 4 -
arch/x86/kernel/crash_dump_32.c | 8 +-
arch/x86/kernel/vmi_32.c | 2
arch/x86/kvm/lapic.c | 8 +-
arch/x86/kvm/paging_tmpl.h | 4 -
arch/x86/kvm/svm.c | 28 ++++----
arch/x86/kvm/x86.c | 8 +-
arch/x86/lib/usercopy_32.c | 4 -
arch/x86/mm/highmem_32.c | 17 +++--
arch/x86/mm/iomap_32.c | 4 -
arch/x86/xen/mmu.c | 2
crypto/async_tx/async_memcpy.c | 8 +-
drivers/ata/libata-sff.c | 8 +-
drivers/block/brd.c | 20 +++---
drivers/block/loop.c | 16 ++---
drivers/block/pktcdvd.c | 8 +-
drivers/crypto/hifn_795x.c | 10 +--
drivers/edac/edac_mc.c | 4 -
drivers/gpu/drm/drm_cache.c | 8 +-
drivers/gpu/drm/i915/i915_gem.c | 40 ++++++------
drivers/gpu/drm/i915/i915_gem_debug.c | 10 +--
drivers/gpu/drm/ttm/ttm_bo_util.c | 8 +-
drivers/gpu/drm/ttm/ttm_tt.c | 16 ++---
drivers/ide/ide-taskfile.c | 4 -
drivers/infiniband/ulp/iser/iser_memory.c | 8 +-
drivers/md/bitmap.c | 36 +++++------
drivers/media/video/ivtv/ivtv-udma.c | 4 -
drivers/memstick/host/jmb38x_ms.c | 4 -
drivers/memstick/host/tifm_ms.c | 4 -
drivers/mmc/host/at91_mci.c | 8 +-
drivers/mmc/host/mmci.h | 4 -
drivers/mmc/host/msm_sdcc.c | 2
drivers/mmc/host/sdhci.c | 4 -
drivers/mmc/host/tifm_sd.c | 16 ++---
drivers/mmc/host/tmio_mmc.h | 4 -
drivers/net/cassini.c | 4 -
drivers/net/e1000e/netdev.c | 10 +--
drivers/scsi/arcmsr/arcmsr_hba.c | 8 +-
drivers/scsi/cxgb3i/cxgb3i_pdu.c | 2
drivers/scsi/fcoe/fcoe.c | 6 -
drivers/scsi/gdth.c | 4 -
drivers/scsi/ips.c | 6 -
drivers/scsi/libfc/fc_fcp.c | 4 -
drivers/scsi/libiscsi_tcp.c | 4 -
drivers/scsi/libsas/sas_host_smp.c | 8 +-
drivers/scsi/megaraid.c | 4 -
drivers/scsi/mvsas/mv_sas.c | 8 +-
drivers/scsi/scsi_debug.c | 24 +++----
drivers/scsi/scsi_lib.c | 4 -
drivers/scsi/sd_dif.c | 12 +--
drivers/staging/hv/RndisFilter.c | 4 -
drivers/staging/hv/netvsc_drv.c | 2
drivers/staging/hv/storvsc_drv.c | 18 ++---
drivers/staging/pohmelfs/inode.c | 8 +-
fs/afs/fsclient.c | 8 +-
fs/afs/mntpt.c | 4 -
fs/aio.c | 32 +++++-----
fs/bio-integrity.c | 10 +--
fs/btrfs/compression.c | 8 +-
fs/btrfs/ctree.c | 30 ++++-----
fs/btrfs/ctree.h | 8 +-
fs/btrfs/disk-io.c | 4 -
fs/btrfs/extent_io.c | 56 ++++++++---------
fs/btrfs/file-item.c | 10 +--
fs/btrfs/inode.c | 22 +++----
fs/btrfs/struct-funcs.c | 10 +--
fs/btrfs/zlib.c | 8 +-
fs/cifs/file.c | 4 -
fs/ecryptfs/mmap.c | 4 -
fs/ecryptfs/read_write.c | 8 +-
fs/exec.c | 4 -
fs/exofs/dir.c | 4 -
fs/ext2/dir.c | 4 -
fs/fuse/dev.c | 12 +--
fs/fuse/file.c | 4 -
fs/gfs2/aops.c | 12 +--
fs/gfs2/lops.c | 8 +-
fs/gfs2/quota.c | 4 -
fs/jbd/journal.c | 12 +--
fs/jbd/transaction.c | 4 -
fs/jbd2/commit.c | 4 -
fs/jbd2/journal.c | 12 +--
fs/jbd2/transaction.c | 4 -
fs/libfs.c | 4 -
fs/minix/dir.c | 4 -
fs/namei.c | 4 -
fs/nfs/dir.c | 4 -
fs/nfs/nfs2xdr.c | 8 +-
fs/nfs/nfs3xdr.c | 8 +-
fs/nfs/nfs4proc.c | 4 -
fs/nfs/nfs4xdr.c | 10 +--
fs/nilfs2/cpfile.c | 94 +++++++++++++++---------------
fs/nilfs2/dat.c | 38 ++++++------
fs/nilfs2/dir.c | 4 -
fs/nilfs2/ifile.c | 4 -
fs/nilfs2/mdt.c | 4 -
fs/nilfs2/page.c | 8 +-
fs/nilfs2/recovery.c | 4 -
fs/nilfs2/segbuf.c | 4 -
fs/nilfs2/segment.c | 4 -
fs/nilfs2/sufile.c | 50 +++++++--------
fs/ntfs/aops.c | 20 +++---
fs/ntfs/attrib.c | 20 +++---
fs/ntfs/file.c | 16 ++---
fs/ntfs/super.c | 8 +-
fs/ocfs2/aops.c | 16 ++---
fs/pipe.c | 8 +-
fs/reiserfs/stree.c | 4 -
fs/reiserfs/tail_conversion.c | 4 -
fs/splice.c | 4 -
fs/squashfs/file.c | 8 +-
fs/squashfs/symlink.c | 4 -
fs/ubifs/file.c | 4 -
fs/udf/file.c | 4 -
include/linux/bio.h | 4 -
include/linux/highmem.h | 30 ++++-----
include/linux/io-mapping.h | 4 -
kernel/power/snapshot.c | 28 ++++----
lib/scatterlist.c | 4 -
lib/swiotlb.c | 2
mm/bounce.c | 4 -
mm/filemap.c | 8 +-
mm/ksm.c | 12 +--
mm/memory.c | 4 -
mm/shmem.c | 14 ++--
mm/vmalloc.c | 8 +-
net/core/kmap_skb.h | 4 -
net/rds/ib_recv.c | 12 +--
net/rds/info.c | 6 -
net/rds/iw_recv.c | 4 -
net/rds/loop.c | 2
net/rds/page.c | 4 -
net/rds/rds.h | 2
net/rds/recv.c | 2
net/rds/tcp_recv.c | 6 -
net/sunrpc/auth_gss/gss_krb5_wrap.c | 4 -
net/sunrpc/socklib.c | 4 -
net/sunrpc/xdr.c | 16 ++---
net/sunrpc/xprtrdma/rpc_rdma.c | 4 -
172 files changed, 809 insertions(+), 808 deletions(-)
Index: linux-2.6/arch/arm/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/arm/include/asm/highmem.h
+++ linux-2.6/arch/arm/include/asm/highmem.h
@@ -23,9 +23,9 @@ extern void kunmap_high(struct page *pag
extern void *kmap(struct page *page);
extern void kunmap(struct page *page);
-extern void *kmap_atomic(struct page *page, enum km_type type);
-extern void kunmap_atomic(void *kvaddr, enum km_type type);
-extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
+extern void *kmap_atomic(struct page *page);
+extern void kunmap_atomic(void *kvaddr);
+extern void *kmap_atomic_pfn(unsigned long pfn);
extern struct page *kmap_atomic_to_page(const void *ptr);
#endif
Index: linux-2.6/arch/arm/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/arm/include/asm/pgtable.h
+++ linux-2.6/arch/arm/include/asm/pgtable.h
@@ -263,10 +263,10 @@ extern struct page *empty_zero_page;
#define pte_page(pte) (pfn_to_page(pte_pfn(pte)))
#define pte_offset_kernel(dir,addr) (pmd_page_vaddr(*(dir)) + __pte_index(addr))
-#define pte_offset_map(dir,addr) (__pte_map(dir, KM_PTE0) + __pte_index(addr))
-#define pte_offset_map_nested(dir,addr) (__pte_map(dir, KM_PTE1) + __pte_index(addr))
-#define pte_unmap(pte) __pte_unmap(pte, KM_PTE0)
-#define pte_unmap_nested(pte) __pte_unmap(pte, KM_PTE1)
+#define pte_offset_map(dir,addr) (__pte_map(dir) + __pte_index(addr))
+#define pte_offset_map_nested(dir,addr) (__pte_map(dir) + __pte_index(addr))
+#define pte_unmap(pte) __pte_unmap(pte)
+#define pte_unmap_nested(pte) __pte_unmap(pte)
#ifndef CONFIG_HIGHPTE
#define __pte_map(dir,km) pmd_page_vaddr(*(dir))
Index: linux-2.6/arch/arm/mm/copypage-fa.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/copypage-fa.c
+++ linux-2.6/arch/arm/mm/copypage-fa.c
@@ -44,11 +44,11 @@ void fa_copy_user_highpage(struct page *
{
void *kto, *kfrom;
- kto = kmap_atomic(to, KM_USER0);
- kfrom = kmap_atomic(from, KM_USER1);
+ kto = kmap_atomic(to);
+ kfrom = kmap_atomic(from);
fa_copy_user_page(kto, kfrom);
- kunmap_atomic(kfrom, KM_USER1);
- kunmap_atomic(kto, KM_USER0);
+ kunmap_atomic(kfrom);
+ kunmap_atomic(kto);
}
/*
@@ -58,7 +58,7 @@ void fa_copy_user_highpage(struct page *
*/
void fa_clear_user_highpage(struct page *page, unsigned long vaddr)
{
- void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+ void *ptr, *kaddr = kmap_atomic(page);
asm volatile("\
mov r1, %2 @ 1\n\
mov r2, #0 @ 1\n\
@@ -77,7 +77,7 @@ void fa_clear_user_highpage(struct page
: "=r" (ptr)
: "0" (kaddr), "I" (PAGE_SIZE / 32)
: "r1", "r2", "r3", "ip", "lr");
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
struct cpu_user_fns fa_user_fns __initdata = {
Index: linux-2.6/arch/arm/mm/copypage-feroceon.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/copypage-feroceon.c
+++ linux-2.6/arch/arm/mm/copypage-feroceon.c
@@ -72,16 +72,16 @@ void feroceon_copy_user_highpage(struct
{
void *kto, *kfrom;
- kto = kmap_atomic(to, KM_USER0);
- kfrom = kmap_atomic(from, KM_USER1);
+ kto = kmap_atomic(to);
+ kfrom = kmap_atomic(from);
feroceon_copy_user_page(kto, kfrom);
- kunmap_atomic(kfrom, KM_USER1);
- kunmap_atomic(kto, KM_USER0);
+ kunmap_atomic(kfrom);
+ kunmap_atomic(kto);
}
void feroceon_clear_user_highpage(struct page *page, unsigned long vaddr)
{
- void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+ void *ptr, *kaddr = kmap_atomic(page);
asm volatile ("\
mov r1, %2 \n\
mov r2, #0 \n\
@@ -101,7 +101,7 @@ void feroceon_clear_user_highpage(struct
: "=r" (ptr)
: "0" (kaddr), "I" (PAGE_SIZE / 32)
: "r1", "r2", "r3", "r4", "r5", "r6", "r7", "ip", "lr");
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
struct cpu_user_fns feroceon_user_fns __initdata = {
Index: linux-2.6/arch/arm/mm/copypage-v3.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/copypage-v3.c
+++ linux-2.6/arch/arm/mm/copypage-v3.c
@@ -42,11 +42,11 @@ void v3_copy_user_highpage(struct page *
{
void *kto, *kfrom;
- kto = kmap_atomic(to, KM_USER0);
- kfrom = kmap_atomic(from, KM_USER1);
+ kto = kmap_atomic(to);
+ kfrom = kmap_atomic(from);
v3_copy_user_page(kto, kfrom);
- kunmap_atomic(kfrom, KM_USER1);
- kunmap_atomic(kto, KM_USER0);
+ kunmap_atomic(kfrom);
+ kunmap_atomic(kto);
}
/*
@@ -56,7 +56,7 @@ void v3_copy_user_highpage(struct page *
*/
void v3_clear_user_highpage(struct page *page, unsigned long vaddr)
{
- void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+ void *ptr, *kaddr = kmap_atomic(page);
asm volatile("\n\
mov r1, %2 @ 1\n\
mov r2, #0 @ 1\n\
@@ -72,7 +72,7 @@ void v3_clear_user_highpage(struct page
: "=r" (ptr)
: "0" (kaddr), "I" (PAGE_SIZE / 64)
: "r1", "r2", "r3", "ip", "lr");
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
struct cpu_user_fns v3_user_fns __initdata = {
Index: linux-2.6/arch/arm/mm/copypage-v4mc.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/copypage-v4mc.c
+++ linux-2.6/arch/arm/mm/copypage-v4mc.c
@@ -71,7 +71,7 @@ mc_copy_user_page(void *from, void *to)
void v4_mc_copy_user_highpage(struct page *to, struct page *from,
unsigned long vaddr)
{
- void *kto = kmap_atomic(to, KM_USER1);
+ void *kto = kmap_atomic(to);
if (test_and_clear_bit(PG_dcache_dirty, &from->flags))
__flush_dcache_page(page_mapping(from), from);
@@ -85,7 +85,7 @@ void v4_mc_copy_user_highpage(struct pag
spin_unlock(&minicache_lock);
- kunmap_atomic(kto, KM_USER1);
+ kunmap_atomic(kto);
}
/*
@@ -93,7 +93,7 @@ void v4_mc_copy_user_highpage(struct pag
*/
void v4_mc_clear_user_highpage(struct page *page, unsigned long vaddr)
{
- void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+ void *ptr, *kaddr = kmap_atomic(page);
asm volatile("\
mov r1, %2 @ 1\n\
mov r2, #0 @ 1\n\
@@ -111,7 +111,7 @@ void v4_mc_clear_user_highpage(struct pa
: "=r" (ptr)
: "0" (kaddr), "I" (PAGE_SIZE / 64)
: "r1", "r2", "r3", "ip", "lr");
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
struct cpu_user_fns v4_mc_user_fns __initdata = {
Index: linux-2.6/arch/arm/mm/copypage-v4wb.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/copypage-v4wb.c
+++ linux-2.6/arch/arm/mm/copypage-v4wb.c
@@ -52,11 +52,11 @@ void v4wb_copy_user_highpage(struct page
{
void *kto, *kfrom;
- kto = kmap_atomic(to, KM_USER0);
- kfrom = kmap_atomic(from, KM_USER1);
+ kto = kmap_atomic(to);
+ kfrom = kmap_atomic(from);
v4wb_copy_user_page(kto, kfrom);
- kunmap_atomic(kfrom, KM_USER1);
- kunmap_atomic(kto, KM_USER0);
+ kunmap_atomic(kfrom);
+ kunmap_atomic(kto);
}
/*
@@ -66,7 +66,7 @@ void v4wb_copy_user_highpage(struct page
*/
void v4wb_clear_user_highpage(struct page *page, unsigned long vaddr)
{
- void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+ void *ptr, *kaddr = kmap_atomic(page);
asm volatile("\
mov r1, %2 @ 1\n\
mov r2, #0 @ 1\n\
@@ -85,7 +85,7 @@ void v4wb_clear_user_highpage(struct pag
: "=r" (ptr)
: "0" (kaddr), "I" (PAGE_SIZE / 64)
: "r1", "r2", "r3", "ip", "lr");
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
struct cpu_user_fns v4wb_user_fns __initdata = {
Index: linux-2.6/arch/arm/mm/copypage-v4wt.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/copypage-v4wt.c
+++ linux-2.6/arch/arm/mm/copypage-v4wt.c
@@ -48,11 +48,11 @@ void v4wt_copy_user_highpage(struct page
{
void *kto, *kfrom;
- kto = kmap_atomic(to, KM_USER0);
- kfrom = kmap_atomic(from, KM_USER1);
+ kto = kmap_atomic(to);
+ kfrom = kmap_atomic(from);
v4wt_copy_user_page(kto, kfrom);
- kunmap_atomic(kfrom, KM_USER1);
- kunmap_atomic(kto, KM_USER0);
+ kunmap_atomic(kfrom);
+ kunmap_atomic(kto);
}
/*
@@ -62,7 +62,7 @@ void v4wt_copy_user_highpage(struct page
*/
void v4wt_clear_user_highpage(struct page *page, unsigned long vaddr)
{
- void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+ void *ptr, *kaddr = kmap_atomic(page);
asm volatile("\
mov r1, %2 @ 1\n\
mov r2, #0 @ 1\n\
@@ -79,7 +79,7 @@ void v4wt_clear_user_highpage(struct pag
: "=r" (ptr)
: "0" (kaddr), "I" (PAGE_SIZE / 64)
: "r1", "r2", "r3", "ip", "lr");
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
struct cpu_user_fns v4wt_user_fns __initdata = {
Index: linux-2.6/arch/arm/mm/copypage-v6.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/copypage-v6.c
+++ linux-2.6/arch/arm/mm/copypage-v6.c
@@ -38,11 +38,11 @@ static void v6_copy_user_highpage_nonali
{
void *kto, *kfrom;
- kfrom = kmap_atomic(from, KM_USER0);
- kto = kmap_atomic(to, KM_USER1);
+ kfrom = kmap_atomic(from);
+ kto = kmap_atomic(to);
copy_page(kto, kfrom);
- kunmap_atomic(kto, KM_USER1);
- kunmap_atomic(kfrom, KM_USER0);
+ kunmap_atomic(kto);
+ kunmap_atomic(kfrom);
}
/*
@@ -51,9 +51,9 @@ static void v6_copy_user_highpage_nonali
*/
static void v6_clear_user_highpage_nonaliasing(struct page *page, unsigned long vaddr)
{
- void *kaddr = kmap_atomic(page, KM_USER0);
+ void *kaddr = kmap_atomic(page);
clear_page(kaddr);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
/*
Index: linux-2.6/arch/arm/mm/copypage-xsc3.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/copypage-xsc3.c
+++ linux-2.6/arch/arm/mm/copypage-xsc3.c
@@ -75,11 +75,11 @@ void xsc3_mc_copy_user_highpage(struct p
{
void *kto, *kfrom;
- kto = kmap_atomic(to, KM_USER0);
- kfrom = kmap_atomic(from, KM_USER1);
+ kto = kmap_atomic(to);
+ kfrom = kmap_atomic(from);
xsc3_mc_copy_user_page(kto, kfrom);
- kunmap_atomic(kfrom, KM_USER1);
- kunmap_atomic(kto, KM_USER0);
+ kunmap_atomic(kfrom);
+ kunmap_atomic(kto);
}
/*
@@ -89,7 +89,7 @@ void xsc3_mc_copy_user_highpage(struct p
*/
void xsc3_mc_clear_user_highpage(struct page *page, unsigned long vaddr)
{
- void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+ void *ptr, *kaddr = kmap_atomic(page);
asm volatile ("\
mov r1, %2 \n\
mov r2, #0 \n\
@@ -104,7 +104,7 @@ void xsc3_mc_clear_user_highpage(struct
: "=r" (ptr)
: "0" (kaddr), "I" (PAGE_SIZE / 32)
: "r1", "r2", "r3");
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
struct cpu_user_fns xsc3_mc_user_fns __initdata = {
Index: linux-2.6/arch/arm/mm/copypage-xscale.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/copypage-xscale.c
+++ linux-2.6/arch/arm/mm/copypage-xscale.c
@@ -93,7 +93,7 @@ mc_copy_user_page(void *from, void *to)
void xscale_mc_copy_user_highpage(struct page *to, struct page *from,
unsigned long vaddr)
{
- void *kto = kmap_atomic(to, KM_USER1);
+ void *kto = kmap_atomic(to);
if (test_and_clear_bit(PG_dcache_dirty, &from->flags))
__flush_dcache_page(page_mapping(from), from);
@@ -107,7 +107,7 @@ void xscale_mc_copy_user_highpage(struct
spin_unlock(&minicache_lock);
- kunmap_atomic(kto, KM_USER1);
+ kunmap_atomic(kto);
}
/*
@@ -116,7 +116,7 @@ void xscale_mc_copy_user_highpage(struct
void
xscale_mc_clear_user_highpage(struct page *page, unsigned long vaddr)
{
- void *ptr, *kaddr = kmap_atomic(page, KM_USER0);
+ void *ptr, *kaddr = kmap_atomic(page);
asm volatile(
"mov r1, %2 \n\
mov r2, #0 \n\
@@ -133,7 +133,7 @@ xscale_mc_clear_user_highpage(struct pag
: "=r" (ptr)
: "0" (kaddr), "I" (PAGE_SIZE / 32)
: "r1", "r2", "r3", "ip");
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
struct cpu_user_fns xscale_mc_user_fns __initdata = {
Index: linux-2.6/arch/arm/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/highmem.c
+++ linux-2.6/arch/arm/mm/highmem.c
@@ -36,7 +36,7 @@ void kunmap(struct page *page)
}
EXPORT_SYMBOL(kunmap);
-void *kmap_atomic(struct page *page, enum km_type type)
+void *kmap_atomic(struct page *page)
{
unsigned int idx;
unsigned long vaddr;
@@ -73,7 +73,7 @@ void *kmap_atomic(struct page *page, enu
}
EXPORT_SYMBOL(kmap_atomic);
-void kunmap_atomic(void *kvaddr, enum km_type type)
+void kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
unsigned int idx;
@@ -98,7 +98,7 @@ void kunmap_atomic(void *kvaddr, enum km
}
EXPORT_SYMBOL(kunmap_atomic);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
unsigned int idx;
unsigned long vaddr;
Index: linux-2.6/arch/frv/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/frv/include/asm/highmem.h
+++ linux-2.6/arch/frv/include/asm/highmem.h
@@ -112,7 +112,7 @@ extern struct page *kmap_atomic_to_page(
(void *) damlr; \
})
-static inline void *kmap_atomic(struct page *page, enum km_type type)
+static inline void *kmap_atomic(struct page *page)
{
unsigned long paddr;
@@ -152,7 +152,7 @@ do { \
asm volatile("tlbpr %0,gr0,#4,#1" : : "r"(vaddr) : "memory"); \
} while(0)
-static inline void kunmap_atomic(void *kvaddr, enum km_type type)
+static inline void kunmap_atomic(void *kvaddr)
{
type = kmap_atomic_idx_pop();
switch (type) {
Index: linux-2.6/arch/frv/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/frv/include/asm/pgtable.h
+++ linux-2.6/arch/frv/include/asm/pgtable.h
@@ -451,11 +451,11 @@ static inline pte_t pte_modify(pte_t pte
#if defined(CONFIG_HIGHPTE)
#define pte_offset_map(dir, address) \
- ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE0) + pte_index(address))
+ ((pte_t *)kmap_atomic(pmd_page(*(dir))) + pte_index(address))
#define pte_offset_map_nested(dir, address) \
- ((pte_t *)kmap_atomic(pmd_page(*(dir)),KM_PTE1) + pte_index(address))
-#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic((pte), KM_PTE1)
+ ((pte_t *)kmap_atomic(pmd_page(*(dir))) + pte_index(address))
+#define pte_unmap(pte) kunmap_atomic(pte)
+#define pte_unmap_nested(pte) kunmap_atomic((pte))
#else
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + pte_index(address))
Index: linux-2.6/arch/microblaze/include/asm/pgtable.h
===================================================================
--- linux-2.6.orig/arch/microblaze/include/asm/pgtable.h
+++ linux-2.6/arch/microblaze/include/asm/pgtable.h
@@ -478,12 +478,12 @@ static inline pmd_t *pmd_offset(pgd_t *d
#define pte_offset_kernel(dir, addr) \
((pte_t *) pmd_page_kernel(*(dir)) + pte_index(addr))
#define pte_offset_map(dir, addr) \
- ((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE0) + pte_index(addr))
+ ((pte_t *) kmap_atomic(pmd_page(*(dir))) + pte_index(addr))
#define pte_offset_map_nested(dir, addr) \
- ((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE1) + pte_index(addr))
+ ((pte_t *) kmap_atomic(pmd_page(*(dir))) + pte_index(addr))
-#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic(pte, KM_PTE1)
+#define pte_unmap(pte) kunmap_atomic(pte)
+#define pte_unmap_nested(pte) kunmap_atomic(pte)
/* Encode and decode a nonlinear file mapping entry */
#define PTE_FILE_MAX_BITS 29
Index: linux-2.6/arch/mips/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/mips/include/asm/highmem.h
+++ linux-2.6/arch/mips/include/asm/highmem.h
@@ -47,9 +47,9 @@ extern void kunmap_high(struct page *pag
extern void *__kmap(struct page *page);
extern void __kunmap(struct page *page);
-extern void *__kmap_atomic(struct page *page, enum km_type type);
-extern void __kunmap_atomic(void *kvaddr, enum km_type type);
-extern void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
+extern void *__kmap_atomic(struct page *page);
+extern void __kunmap_atomic(void *kvaddr);
+extern void *kmap_atomic_pfn(unsigned long pfn);
extern struct page *__kmap_atomic_to_page(void *ptr);
#define kmap __kmap
Index: linux-2.6/arch/mips/mm/c-r4k.c
===================================================================
--- linux-2.6.orig/arch/mips/mm/c-r4k.c
+++ linux-2.6/arch/mips/mm/c-r4k.c
@@ -498,7 +498,7 @@ static inline void local_r4k_flush_cache
if (map_coherent)
vaddr = kmap_coherent(page, addr);
else
- vaddr = kmap_atomic(page, KM_USER0);
+ vaddr = kmap_atomic(page);
addr = (unsigned long)vaddr;
}
@@ -521,7 +521,7 @@ static inline void local_r4k_flush_cache
if (map_coherent)
kunmap_coherent();
else
- kunmap_atomic(vaddr, KM_USER0);
+ kunmap_atomic(vaddr);
}
}
Index: linux-2.6/arch/mips/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/mips/mm/highmem.c
+++ linux-2.6/arch/mips/mm/highmem.c
@@ -40,7 +40,7 @@ EXPORT_SYMBOL(__kunmap);
* kmaps are appropriate for short, tight code paths only.
*/
-void *__kmap_atomic(struct page *page, enum km_type type)
+void *__kmap_atomic(struct page *page)
{
enum fixed_addresses idx;
unsigned long vaddr;
@@ -85,9 +85,9 @@ static void __debug_kunmap_atomic(void *
#endif
}
-void __kunmap_atomic(void *kvaddr, enum km_type type)
+void __kunmap_atomic(void *kvaddr)
{
- type = kmap_atomic_idx_pop();
+ int type = kmap_atomic_idx_pop();
__debug_kunmap_atomic(kvaddr, type);
pagefault_enable();
}
@@ -97,7 +97,7 @@ EXPORT_SYMBOL(__kunmap_atomic);
* This is the same as kmap_atomic() but can map memory that doesn't
* have a struct page associated with it.
*/
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
enum fixed_addresses idx;
unsigned long vaddr;
Index: linux-2.6/arch/mips/mm/init.c
===================================================================
--- linux-2.6.orig/arch/mips/mm/init.c
+++ linux-2.6/arch/mips/mm/init.c
@@ -204,21 +204,21 @@ void copy_user_highpage(struct page *to,
{
void *vfrom, *vto;
- vto = kmap_atomic(to, KM_USER1);
+ vto = kmap_atomic(to);
if (cpu_has_dc_aliases &&
page_mapped(from) && !Page_dcache_dirty(from)) {
vfrom = kmap_coherent(from, vaddr);
copy_page(vto, vfrom);
kunmap_coherent();
} else {
- vfrom = kmap_atomic(from, KM_USER0);
+ vfrom = kmap_atomic(from);
copy_page(vto, vfrom);
- kunmap_atomic(vfrom, KM_USER0);
+ kunmap_atomic(vfrom);
}
if ((!cpu_has_ic_fills_f_dc) ||
pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK))
flush_data_cache_page((unsigned long)vto);
- kunmap_atomic(vto, KM_USER1);
+ kunmap_atomic(vto);
/* Make sure this page is cleared on other CPU's too before using it */
smp_wmb();
}
Index: linux-2.6/arch/mn10300/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/mn10300/include/asm/highmem.h
+++ linux-2.6/arch/mn10300/include/asm/highmem.h
@@ -70,7 +70,7 @@ static inline void kunmap(struct page *p
* be used in IRQ contexts, so in some (very limited) cases we need
* it.
*/
-static inline unsigned long kmap_atomic(struct page *page, enum km_type type)
+static inline unsigned long kmap_atomic(struct page *page)
{
enum fixed_addresses idx;
unsigned long vaddr;
@@ -111,9 +111,9 @@ static inline void debug_kunmap_atomic(u
#endif
}
-static inline void kunmap_atomic(unsigned long vaddr, enum km_type type)
+static inline void kunmap_atomic(unsigned long vaddr)
{
- type = kmap_atomic_idx_pop();
+ int type = kmap_atomic_idx_pop();
debug_kunmap_atomic(vaddr, type);
}
Index: linux-2.6/arch/powerpc/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/powerpc/include/asm/highmem.h
+++ linux-2.6/arch/powerpc/include/asm/highmem.h
@@ -60,9 +60,9 @@ extern pte_t *pkmap_page_table;
extern void *kmap_high(struct page *page);
extern void kunmap_high(struct page *page);
-extern void *kmap_atomic_prot(struct page *page, enum km_type type,
+extern void *kmap_atomic_prot(struct page *page,
pgprot_t prot);
-extern void kunmap_atomic(void *kvaddr, enum km_type type);
+extern void kunmap_atomic(void *kvaddr);
static inline void *kmap(struct page *page)
{
@@ -80,9 +80,9 @@ static inline void kunmap(struct page *p
kunmap_high(page);
}
-static inline void *kmap_atomic(struct page *page, enum km_type type)
+static inline void *kmap_atomic(struct page *page)
{
- return kmap_atomic_prot(page, type, kmap_prot);
+ return kmap_atomic_prot(page, kmap_prot);
}
static inline struct page *kmap_atomic_to_page(void *ptr)
Index: linux-2.6/arch/powerpc/include/asm/pgtable-ppc32.h
===================================================================
--- linux-2.6.orig/arch/powerpc/include/asm/pgtable-ppc32.h
+++ linux-2.6/arch/powerpc/include/asm/pgtable-ppc32.h
@@ -308,12 +308,12 @@ static inline void __ptep_set_access_fla
#define pte_offset_kernel(dir, addr) \
((pte_t *) pmd_page_vaddr(*(dir)) + pte_index(addr))
#define pte_offset_map(dir, addr) \
- ((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE0) + pte_index(addr))
+ ((pte_t *) kmap_atomic(pmd_page(*(dir))) + pte_index(addr))
#define pte_offset_map_nested(dir, addr) \
- ((pte_t *) kmap_atomic(pmd_page(*(dir)), KM_PTE1) + pte_index(addr))
+ ((pte_t *) kmap_atomic(pmd_page(*(dir))) + pte_index(addr))
-#define pte_unmap(pte) kunmap_atomic(pte, KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic(pte, KM_PTE1)
+#define pte_unmap(pte) kunmap_atomic(pte)
+#define pte_unmap_nested(pte) kunmap_atomic(pte)
/*
* Encode and decode a swap entry.
Index: linux-2.6/arch/powerpc/mm/dma-noncoherent.c
===================================================================
--- linux-2.6.orig/arch/powerpc/mm/dma-noncoherent.c
+++ linux-2.6/arch/powerpc/mm/dma-noncoherent.c
@@ -368,7 +368,7 @@ static inline void __dma_sync_page_highm
/* Sync this buffer segment */
__dma_sync((void *)start, seg_size, direction);
- kunmap_atomic((void *)start, KM_PPC_SYNC_PAGE);
+ kunmap_atomic((void *)start);
seg_nr++;
/* Calculate next buffer segment size */
Index: linux-2.6/arch/powerpc/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/powerpc/mm/highmem.c
+++ linux-2.6/arch/powerpc/mm/highmem.c
@@ -29,9 +29,9 @@
* be used in IRQ contexts, so in some (very limited) cases we need
* it.
*/
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
{
- unsigned int idx;
+ unsigned int idx, type;
unsigned long vaddr;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
@@ -74,9 +74,9 @@ static void debug_kunmap_atomic(void *kv
#endif
}
-void kunmap_atomic(void *kvaddr, enum km_type type)
+void kunmap_atomic(void *kvaddr)
{
- type = kmap_atomic_idx_pop();
+ int type = kmap_atomic_idx_pop();
debug_kunmap_atomic(kvaddr, type);
pagefault_enable();
}
Index: linux-2.6/arch/powerpc/mm/mem.c
===================================================================
--- linux-2.6.orig/arch/powerpc/mm/mem.c
+++ linux-2.6/arch/powerpc/mm/mem.c
@@ -418,9 +418,9 @@ EXPORT_SYMBOL(flush_dcache_page);
void flush_dcache_icache_page(struct page *page)
{
#ifdef CONFIG_BOOKE
- void *start = kmap_atomic(page, KM_PPC_SYNC_ICACHE);
+ void *start = kmap_atomic(page);
__flush_dcache_icache(start);
- kunmap_atomic(start, KM_PPC_SYNC_ICACHE);
+ kunmap_atomic(start);
#elif defined(CONFIG_8xx) || defined(CONFIG_PPC64)
/* On 8xx there is no need to kmap since highmem is not supported */
__flush_dcache_icache(page_address(page));
Index: linux-2.6/arch/sh/mm/cache.c
===================================================================
--- linux-2.6.orig/arch/sh/mm/cache.c
+++ linux-2.6/arch/sh/mm/cache.c
@@ -83,7 +83,7 @@ void copy_user_highpage(struct page *to,
{
void *vfrom, *vto;
- vto = kmap_atomic(to, KM_USER1);
+ vto = kmap_atomic(to);
if (boot_cpu_data.dcache.n_aliases && page_mapped(from) &&
!test_bit(PG_dcache_dirty, &from->flags)) {
@@ -91,15 +91,15 @@ void copy_user_highpage(struct page *to,
copy_page(vto, vfrom);
kunmap_coherent(vfrom);
} else {
- vfrom = kmap_atomic(from, KM_USER0);
+ vfrom = kmap_atomic(from);
copy_page(vto, vfrom);
- kunmap_atomic(vfrom, KM_USER0);
+ kunmap_atomic(vfrom);
}
if (pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK))
__flush_purge_region(vto, PAGE_SIZE);
- kunmap_atomic(vto, KM_USER1);
+ kunmap_atomic(vto);
/* Make sure this page is cleared on other CPU's too before using it */
smp_wmb();
}
@@ -107,14 +107,14 @@ EXPORT_SYMBOL(copy_user_highpage);
void clear_user_highpage(struct page *page, unsigned long vaddr)
{
- void *kaddr = kmap_atomic(page, KM_USER0);
+ void *kaddr = kmap_atomic(page);
clear_page(kaddr);
if (pages_do_alias((unsigned long)kaddr, vaddr & PAGE_MASK))
__flush_purge_region(kaddr, PAGE_SIZE);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
EXPORT_SYMBOL(clear_user_highpage);
Index: linux-2.6/arch/sparc/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/sparc/include/asm/highmem.h
+++ linux-2.6/arch/sparc/include/asm/highmem.h
@@ -70,8 +70,8 @@ static inline void kunmap(struct page *p
kunmap_high(page);
}
-extern void *kmap_atomic(struct page *page, enum km_type type);
-extern void kunmap_atomic(void *kvaddr, enum km_type type);
+extern void *kmap_atomic(struct page *page);
+extern void kunmap_atomic(void *kvaddr);
extern struct page *kmap_atomic_to_page(void *vaddr);
#define flush_cache_kmaps() flush_cache_all()
Index: linux-2.6/arch/sparc/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/sparc/mm/highmem.c
+++ linux-2.6/arch/sparc/mm/highmem.c
@@ -29,9 +29,9 @@
#include <asm/tlbflush.h>
#include <asm/fixmap.h>
-void *kmap_atomic(struct page *page, enum km_type type)
+void *kmap_atomic(struct page *page)
{
- unsigned long idx;
+ unsigned long idx, type;
unsigned long vaddr;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
@@ -99,9 +99,9 @@ static void debug_kunmap_atomic(void *kv
#endif
}
-void kunmap_atomic(void *kvaddr, enum km_type type)
+void kunmap_atomic(void *kvaddr)
{
- type = kmap_atomic_idx_pop();
+ int type = kmap_atomic_idx_pop();
debug_kunmap_atomic(kvaddr, type);
pagefault_enable();
}
Index: linux-2.6/arch/um/kernel/skas/uaccess.c
===================================================================
--- linux-2.6.orig/arch/um/kernel/skas/uaccess.c
+++ linux-2.6/arch/um/kernel/skas/uaccess.c
@@ -68,7 +68,7 @@ static int do_op_one_page(unsigned long
return -1;
page = pte_page(*pte);
- addr = (unsigned long) kmap_atomic(page, KM_UML_USERCOPY) +
+ addr = (unsigned long) kmap_atomic(page) +
(addr & ~PAGE_MASK);
current->thread.fault_catcher = &buf;
@@ -81,7 +81,7 @@ static int do_op_one_page(unsigned long
current->thread.fault_catcher = NULL;
- kunmap_atomic(page, KM_UML_USERCOPY);
+ kunmap_atomic(page);
return n;
}
Index: linux-2.6/arch/x86/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/highmem.h
+++ linux-2.6/arch/x86/include/asm/highmem.h
@@ -59,11 +59,11 @@ extern void kunmap_high(struct page *pag
void *kmap(struct page *page);
void kunmap(struct page *page);
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot);
-void *kmap_atomic(struct page *page, enum km_type type);
-void kunmap_atomic(void *kvaddr, enum km_type type);
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type);
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+void *kmap_atomic_prot(struct page *page, pgprot_t prot);
+void *kmap_atomic(struct page *page);
+void kunmap_atomic(void *kvaddr);
+void *kmap_atomic_pfn(unsigned long pfn);
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
struct page *kmap_atomic_to_page(void *ptr);
#ifndef CONFIG_PARAVIRT
Index: linux-2.6/arch/x86/include/asm/iomap.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/iomap.h
+++ linux-2.6/arch/x86/include/asm/iomap.h
@@ -27,10 +27,10 @@
#include <asm/tlbflush.h>
void *
-iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);
+iomap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot);
void
-iounmap_atomic(void *kvaddr, enum km_type type);
+iounmap_atomic(void *kvaddr);
int
iomap_create_wc(resource_size_t base, unsigned long size, pgprot_t *prot);
Index: linux-2.6/arch/x86/include/asm/paravirt.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/paravirt.h
+++ linux-2.6/arch/x86/include/asm/paravirt.h
@@ -436,7 +436,7 @@ static inline void paravirt_release_pud(
}
#ifdef CONFIG_HIGHPTE
-static inline void *kmap_atomic_pte(struct page *page, enum km_type type)
+static inline void *kmap_atomic_pte(struct page *page)
{
unsigned long ret;
ret = PVOP_CALL2(unsigned long, pv_mmu_ops.kmap_atomic_pte, page, type);
Index: linux-2.6/arch/x86/include/asm/paravirt_types.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/paravirt_types.h
+++ linux-2.6/arch/x86/include/asm/paravirt_types.h
@@ -305,7 +305,7 @@ struct pv_mmu_ops {
#endif /* PAGETABLE_LEVELS >= 3 */
#ifdef CONFIG_HIGHPTE
- void *(*kmap_atomic_pte)(struct page *page, enum km_type type);
+ void *(*kmap_atomic_pte)(struct page *page);
#endif
struct pv_lazy_ops lazy_mode;
Index: linux-2.6/arch/x86/include/asm/pgtable_32.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/pgtable_32.h
+++ linux-2.6/arch/x86/include/asm/pgtable_32.h
@@ -57,10 +57,10 @@ extern void set_pmd_pfn(unsigned long, u
((pte_t *)kmap_atomic_pte(pmd_page(*(dir)), __KM_PTE) + \
pte_index((address)))
#define pte_offset_map_nested(dir, address) \
- ((pte_t *)kmap_atomic_pte(pmd_page(*(dir)), KM_PTE1) + \
+ ((pte_t *)kmap_atomic_pte(pmd_page(*(dir))) + \
pte_index((address)))
#define pte_unmap(pte) kunmap_atomic((pte), __KM_PTE)
-#define pte_unmap_nested(pte) kunmap_atomic((pte), KM_PTE1)
+#define pte_unmap_nested(pte) kunmap_atomic((pte))
#else
#define pte_offset_map(dir, address) \
((pte_t *)page_address(pmd_page(*(dir))) + pte_index((address)))
Index: linux-2.6/arch/x86/kernel/crash_dump_32.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/crash_dump_32.c
+++ linux-2.6/arch/x86/kernel/crash_dump_32.c
@@ -41,20 +41,20 @@ ssize_t copy_oldmem_page(unsigned long p
if (!csize)
return 0;
- vaddr = kmap_atomic_pfn(pfn, KM_PTE0);
+ vaddr = kmap_atomic_pfn(pfn);
if (!userbuf) {
memcpy(buf, (vaddr + offset), csize);
- kunmap_atomic(vaddr, KM_PTE0);
+ kunmap_atomic(vaddr);
} else {
if (!kdump_buf_page) {
printk(KERN_WARNING "Kdump: Kdump buffer page not"
" allocated\n");
- kunmap_atomic(vaddr, KM_PTE0);
+ kunmap_atomic(vaddr);
return -EFAULT;
}
copy_page(kdump_buf_page, vaddr);
- kunmap_atomic(vaddr, KM_PTE0);
+ kunmap_atomic(vaddr);
if (copy_to_user(buf, (kdump_buf_page + offset), csize))
return -EFAULT;
}
Index: linux-2.6/arch/x86/kernel/vmi_32.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/vmi_32.c
+++ linux-2.6/arch/x86/kernel/vmi_32.c
@@ -267,7 +267,7 @@ static void vmi_nop(void)
}
#ifdef CONFIG_HIGHPTE
-static void *vmi_kmap_atomic_pte(struct page *page, enum km_type type)
+static void *vmi_kmap_atomic_pte(struct page *page)
{
void *va = kmap_atomic(page, type);
Index: linux-2.6/arch/x86/kvm/lapic.c
===================================================================
--- linux-2.6.orig/arch/x86/kvm/lapic.c
+++ linux-2.6/arch/x86/kvm/lapic.c
@@ -1179,9 +1179,9 @@ void kvm_lapic_sync_from_vapic(struct kv
if (!irqchip_in_kernel(vcpu->kvm) || !vcpu->arch.apic->vapic_addr)
return;
- vapic = kmap_atomic(vcpu->arch.apic->vapic_page, KM_USER0);
+ vapic = kmap_atomic(vcpu->arch.apic->vapic_page);
data = *(u32 *)(vapic + offset_in_page(vcpu->arch.apic->vapic_addr));
- kunmap_atomic(vapic, KM_USER0);
+ kunmap_atomic(vapic);
apic_set_tpr(vcpu->arch.apic, data & 0xff);
}
@@ -1206,9 +1206,9 @@ void kvm_lapic_sync_to_vapic(struct kvm_
max_isr = 0;
data = (tpr & 0xff) | ((max_isr & 0xf0) << 8) | (max_irr << 24);
- vapic = kmap_atomic(vcpu->arch.apic->vapic_page, KM_USER0);
+ vapic = kmap_atomic(vcpu->arch.apic->vapic_page);
*(u32 *)(vapic + offset_in_page(vcpu->arch.apic->vapic_addr)) = data;
- kunmap_atomic(vapic, KM_USER0);
+ kunmap_atomic(vapic);
}
void kvm_lapic_set_vapic_addr(struct kvm_vcpu *vcpu, gpa_t vapic_addr)
Index: linux-2.6/arch/x86/kvm/paging_tmpl.h
===================================================================
--- linux-2.6.orig/arch/x86/kvm/paging_tmpl.h
+++ linux-2.6/arch/x86/kvm/paging_tmpl.h
@@ -88,9 +88,9 @@ static bool FNAME(cmpxchg_gpte)(struct k
page = gfn_to_page(kvm, table_gfn);
- table = kmap_atomic(page, KM_USER0);
+ table = kmap_atomic(page);
ret = CMPXCHG(&table[index], orig_pte, new_pte);
- kunmap_atomic(table, KM_USER0);
+ kunmap_atomic(table);
kvm_release_page_dirty(page);
Index: linux-2.6/arch/x86/kvm/svm.c
===================================================================
--- linux-2.6.orig/arch/x86/kvm/svm.c
+++ linux-2.6/arch/x86/kvm/svm.c
@@ -1386,7 +1386,7 @@ static inline int nested_svm_intr(struct
return 0;
}
-static void *nested_svm_map(struct vcpu_svm *svm, u64 gpa, enum km_type idx)
+static void *nested_svm_map(struct vcpu_svm *svm, u64 gpa)
{
struct page *page;
@@ -1406,7 +1406,7 @@ error:
return NULL;
}
-static void nested_svm_unmap(void *addr, enum km_type idx)
+static void nested_svm_unmap(void *addr)
{
struct page *page;
@@ -1430,7 +1430,7 @@ static bool nested_svm_exit_handled_msr(
if (!(svm->nested.intercept & (1ULL << INTERCEPT_MSR_PROT)))
return false;
- msrpm = nested_svm_map(svm, svm->nested.vmcb_msrpm, KM_USER0);
+ msrpm = nested_svm_map(svm, svm->nested.vmcb_msrpm);
if (!msrpm)
goto out;
@@ -1458,7 +1458,7 @@ static bool nested_svm_exit_handled_msr(
ret = msrpm[t1] & ((1 << param) << t0);
out:
- nested_svm_unmap(msrpm, KM_USER0);
+ nested_svm_unmap(msrpm);
return ret;
}
@@ -1584,7 +1584,7 @@ static int nested_svm_vmexit(struct vcpu
struct vmcb *hsave = svm->nested.hsave;
struct vmcb *vmcb = svm->vmcb;
- nested_vmcb = nested_svm_map(svm, svm->nested.vmcb, KM_USER0);
+ nested_vmcb = nested_svm_map(svm, svm->nested.vmcb);
if (!nested_vmcb)
return 1;
@@ -1662,7 +1662,7 @@ static int nested_svm_vmexit(struct vcpu
/* Exit nested SVM mode */
svm->nested.vmcb = 0;
- nested_svm_unmap(nested_vmcb, KM_USER0);
+ nested_svm_unmap(nested_vmcb);
kvm_mmu_reset_context(&svm->vcpu);
kvm_mmu_load(&svm->vcpu);
@@ -1675,7 +1675,7 @@ static bool nested_svm_vmrun_msrpm(struc
u32 *nested_msrpm;
int i;
- nested_msrpm = nested_svm_map(svm, svm->nested.vmcb_msrpm, KM_USER0);
+ nested_msrpm = nested_svm_map(svm, svm->nested.vmcb_msrpm);
if (!nested_msrpm)
return false;
@@ -1684,7 +1684,7 @@ static bool nested_svm_vmrun_msrpm(struc
svm->vmcb->control.msrpm_base_pa = __pa(svm->nested.msrpm);
- nested_svm_unmap(nested_msrpm, KM_USER0);
+ nested_svm_unmap(nested_msrpm);
return true;
}
@@ -1695,7 +1695,7 @@ static bool nested_svm_vmrun(struct vcpu
struct vmcb *hsave = svm->nested.hsave;
struct vmcb *vmcb = svm->vmcb;
- nested_vmcb = nested_svm_map(svm, svm->vmcb->save.rax, KM_USER0);
+ nested_vmcb = nested_svm_map(svm, svm->vmcb->save.rax);
if (!nested_vmcb)
return false;
@@ -1814,7 +1814,7 @@ static bool nested_svm_vmrun(struct vcpu
svm->vmcb->control.event_inj = nested_vmcb->control.event_inj;
svm->vmcb->control.event_inj_err = nested_vmcb->control.event_inj_err;
- nested_svm_unmap(nested_vmcb, KM_USER0);
+ nested_svm_unmap(nested_vmcb);
enable_gif(svm);
@@ -1847,12 +1847,12 @@ static int vmload_interception(struct vc
svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
skip_emulated_instruction(&svm->vcpu);
- nested_vmcb = nested_svm_map(svm, svm->vmcb->save.rax, KM_USER0);
+ nested_vmcb = nested_svm_map(svm, svm->vmcb->save.rax);
if (!nested_vmcb)
return 1;
nested_svm_vmloadsave(nested_vmcb, svm->vmcb);
- nested_svm_unmap(nested_vmcb, KM_USER0);
+ nested_svm_unmap(nested_vmcb);
return 1;
}
@@ -1867,12 +1867,12 @@ static int vmsave_interception(struct vc
svm->next_rip = kvm_rip_read(&svm->vcpu) + 3;
skip_emulated_instruction(&svm->vcpu);
- nested_vmcb = nested_svm_map(svm, svm->vmcb->save.rax, KM_USER0);
+ nested_vmcb = nested_svm_map(svm, svm->vmcb->save.rax);
if (!nested_vmcb)
return 1;
nested_svm_vmloadsave(svm->vmcb, nested_vmcb);
- nested_svm_unmap(nested_vmcb, KM_USER0);
+ nested_svm_unmap(nested_vmcb);
return 1;
}
Index: linux-2.6/arch/x86/kvm/x86.c
===================================================================
--- linux-2.6.orig/arch/x86/kvm/x86.c
+++ linux-2.6/arch/x86/kvm/x86.c
@@ -685,12 +685,12 @@ static void kvm_write_guest_time(struct
*/
vcpu->hv_clock.version += 2;
- shared_kaddr = kmap_atomic(vcpu->time_page, KM_USER0);
+ shared_kaddr = kmap_atomic(vcpu->time_page);
memcpy(shared_kaddr + vcpu->time_offset, &vcpu->hv_clock,
sizeof(vcpu->hv_clock));
- kunmap_atomic(shared_kaddr, KM_USER0);
+ kunmap_atomic(shared_kaddr);
mark_page_dirty(v->kvm, vcpu->time >> PAGE_SHIFT);
}
@@ -2668,9 +2668,9 @@ static int emulator_cmpxchg_emulated(uns
page = gfn_to_page(vcpu->kvm, gpa >> PAGE_SHIFT);
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
set_64bit((u64 *)(kaddr + offset_in_page(gpa)), val);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
kvm_release_page_dirty(page);
}
emul_write:
Index: linux-2.6/arch/x86/lib/usercopy_32.c
===================================================================
--- linux-2.6.orig/arch/x86/lib/usercopy_32.c
+++ linux-2.6/arch/x86/lib/usercopy_32.c
@@ -760,9 +760,9 @@ survive:
break;
}
- maddr = kmap_atomic(pg, KM_USER0);
+ maddr = kmap_atomic(pg);
memcpy(maddr + offset, from, len);
- kunmap_atomic(maddr, KM_USER0);
+ kunmap_atomic(maddr);
set_page_dirty_lock(pg);
put_page(pg);
up_read(¤t->mm->mmap_sem);
Index: linux-2.6/arch/x86/mm/highmem_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/highmem_32.c
+++ linux-2.6/arch/x86/mm/highmem_32.c
@@ -27,10 +27,11 @@ void kunmap(struct page *page)
* However when holding an atomic kmap it is not legal to sleep, so atomic
* kmaps are appropriate for short, tight code paths only.
*/
-void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot(struct page *page, pgprot_t prot)
{
enum fixed_addresses idx;
unsigned long vaddr;
+ int type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
@@ -47,15 +48,16 @@ void *kmap_atomic_prot(struct page *page
return (void *)vaddr;
}
-void *kmap_atomic(struct page *page, enum km_type type)
+void *kmap_atomic(struct page *page)
{
- return kmap_atomic_prot(page, type, kmap_prot);
+ return kmap_atomic_prot(page, kmap_prot);
}
-void kunmap_atomic(void *kvaddr, enum km_type type)
+void kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
enum fixed_addresses idx;
+ int type;
type = kmap_atomic_idx_pop();
idx = type + KM_TYPE_NR*smp_processor_id();
@@ -82,10 +84,11 @@ void kunmap_atomic(void *kvaddr, enum km
* This is the same as kmap_atomic() but can map memory that doesn't
* have a struct page associated with it.
*/
-void *kmap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+void *kmap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
enum fixed_addresses idx;
unsigned long vaddr;
+ int type;
pagefault_disable();
@@ -98,9 +101,9 @@ void *kmap_atomic_prot_pfn(unsigned long
return (void *)vaddr;
}
-void *kmap_atomic_pfn(unsigned long pfn, enum km_type type)
+void *kmap_atomic_pfn(unsigned long pfn)
{
- return kmap_atomic_prot_pfn(pfn, type, kmap_prot);
+ return kmap_atomic_prot_pfn(pfn, kmap_prot);
}
EXPORT_SYMBOL_GPL(kmap_atomic_pfn); /* temporarily in use by i915 GEM until vmap */
Index: linux-2.6/arch/x86/mm/iomap_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/iomap_32.c
+++ linux-2.6/arch/x86/mm/iomap_32.c
@@ -59,7 +59,7 @@ EXPORT_SYMBOL_GPL(iomap_free);
* Map 'pfn' using fixed map 'type' and protections 'prot'
*/
void *
-iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot)
+iomap_atomic_prot_pfn(unsigned long pfn, pgprot_t prot)
{
/*
* For non-PAT systems, promote PAGE_KERNEL_WC to PAGE_KERNEL_UC_MINUS.
@@ -75,7 +75,7 @@ iomap_atomic_prot_pfn(unsigned long pfn,
EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn);
void
-iounmap_atomic(void *kvaddr, enum km_type type)
+iounmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
Index: linux-2.6/arch/x86/xen/mmu.c
===================================================================
--- linux-2.6.orig/arch/x86/xen/mmu.c
+++ linux-2.6/arch/x86/xen/mmu.c
@@ -1428,7 +1428,7 @@ static void xen_pgd_free(struct mm_struc
}
#ifdef CONFIG_HIGHPTE
-static void *xen_kmap_atomic_pte(struct page *page, enum km_type type)
+static void *xen_kmap_atomic_pte(struct page *page)
{
pgprot_t prot = PAGE_KERNEL;
Index: linux-2.6/crypto/async_tx/async_memcpy.c
===================================================================
--- linux-2.6.orig/crypto/async_tx/async_memcpy.c
+++ linux-2.6/crypto/async_tx/async_memcpy.c
@@ -78,13 +78,13 @@ async_memcpy(struct page *dest, struct p
/* wait for any prerequisite operations */
async_tx_quiesce(&submit->depend_tx);
- dest_buf = kmap_atomic(dest, KM_USER0) + dest_offset;
- src_buf = kmap_atomic(src, KM_USER1) + src_offset;
+ dest_buf = kmap_atomic(dest) + dest_offset;
+ src_buf = kmap_atomic(src) + src_offset;
memcpy(dest_buf, src_buf, len);
- kunmap_atomic(src_buf, KM_USER1);
- kunmap_atomic(dest_buf, KM_USER0);
+ kunmap_atomic(src_buf);
+ kunmap_atomic(dest_buf);
async_tx_sync_epilog(submit);
}
Index: linux-2.6/drivers/ata/libata-sff.c
===================================================================
--- linux-2.6.orig/drivers/ata/libata-sff.c
+++ linux-2.6/drivers/ata/libata-sff.c
@@ -879,13 +879,13 @@ static void ata_pio_sector(struct ata_qu
/* FIXME: use a bounce buffer */
local_irq_save(flags);
- buf = kmap_atomic(page, KM_IRQ0);
+ buf = kmap_atomic(page);
/* do the actual data transfer */
ap->ops->sff_data_xfer(qc->dev, buf + offset, qc->sect_size,
do_write);
- kunmap_atomic(buf, KM_IRQ0);
+ kunmap_atomic(buf);
local_irq_restore(flags);
} else {
buf = page_address(page);
@@ -1017,13 +1017,13 @@ next_sg:
/* FIXME: use bounce buffer */
local_irq_save(flags);
- buf = kmap_atomic(page, KM_IRQ0);
+ buf = kmap_atomic(page);
/* do the actual data transfer */
consumed = ap->ops->sff_data_xfer(dev, buf + offset,
count, rw);
- kunmap_atomic(buf, KM_IRQ0);
+ kunmap_atomic(buf);
local_irq_restore(flags);
} else {
buf = page_address(page);
Index: linux-2.6/drivers/block/brd.c
===================================================================
--- linux-2.6.orig/drivers/block/brd.c
+++ linux-2.6/drivers/block/brd.c
@@ -204,9 +204,9 @@ static void copy_to_brd(struct brd_devic
page = brd_lookup_page(brd, sector);
BUG_ON(!page);
- dst = kmap_atomic(page, KM_USER1);
+ dst = kmap_atomic(page);
memcpy(dst + offset, src, copy);
- kunmap_atomic(dst, KM_USER1);
+ kunmap_atomic(dst);
if (copy < n) {
src += copy;
@@ -215,9 +215,9 @@ static void copy_to_brd(struct brd_devic
page = brd_lookup_page(brd, sector);
BUG_ON(!page);
- dst = kmap_atomic(page, KM_USER1);
+ dst = kmap_atomic(page);
memcpy(dst, src, copy);
- kunmap_atomic(dst, KM_USER1);
+ kunmap_atomic(dst);
}
}
@@ -235,9 +235,9 @@ static void copy_from_brd(void *dst, str
copy = min_t(size_t, n, PAGE_SIZE - offset);
page = brd_lookup_page(brd, sector);
if (page) {
- src = kmap_atomic(page, KM_USER1);
+ src = kmap_atomic(page);
memcpy(dst, src + offset, copy);
- kunmap_atomic(src, KM_USER1);
+ kunmap_atomic(src);
} else
memset(dst, 0, copy);
@@ -247,9 +247,9 @@ static void copy_from_brd(void *dst, str
copy = n - copy;
page = brd_lookup_page(brd, sector);
if (page) {
- src = kmap_atomic(page, KM_USER1);
+ src = kmap_atomic(page);
memcpy(dst, src, copy);
- kunmap_atomic(src, KM_USER1);
+ kunmap_atomic(src);
} else
memset(dst, 0, copy);
}
@@ -271,7 +271,7 @@ static int brd_do_bvec(struct brd_device
goto out;
}
- mem = kmap_atomic(page, KM_USER0);
+ mem = kmap_atomic(page);
if (rw == READ) {
copy_from_brd(mem + off, brd, sector, len);
flush_dcache_page(page);
@@ -279,7 +279,7 @@ static int brd_do_bvec(struct brd_device
flush_dcache_page(page);
copy_to_brd(brd, mem + off, sector, len);
}
- kunmap_atomic(mem, KM_USER0);
+ kunmap_atomic(mem);
out:
return err;
Index: linux-2.6/drivers/block/loop.c
===================================================================
--- linux-2.6.orig/drivers/block/loop.c
+++ linux-2.6/drivers/block/loop.c
@@ -91,16 +91,16 @@ static int transfer_none(struct loop_dev
struct page *loop_page, unsigned loop_off,
int size, sector_t real_block)
{
- char *raw_buf = kmap_atomic(raw_page, KM_USER0) + raw_off;
- char *loop_buf = kmap_atomic(loop_page, KM_USER1) + loop_off;
+ char *raw_buf = kmap_atomic(raw_page) + raw_off;
+ char *loop_buf = kmap_atomic(loop_page) + loop_off;
if (cmd == READ)
memcpy(loop_buf, raw_buf, size);
else
memcpy(raw_buf, loop_buf, size);
- kunmap_atomic(loop_buf, KM_USER1);
- kunmap_atomic(raw_buf, KM_USER0);
+ kunmap_atomic(loop_buf);
+ kunmap_atomic(raw_buf);
cond_resched();
return 0;
}
@@ -110,8 +110,8 @@ static int transfer_xor(struct loop_devi
struct page *loop_page, unsigned loop_off,
int size, sector_t real_block)
{
- char *raw_buf = kmap_atomic(raw_page, KM_USER0) + raw_off;
- char *loop_buf = kmap_atomic(loop_page, KM_USER1) + loop_off;
+ char *raw_buf = kmap_atomic(raw_page) + raw_off;
+ char *loop_buf = kmap_atomic(loop_page) + loop_off;
char *in, *out, *key;
int i, keysize;
@@ -128,8 +128,8 @@ static int transfer_xor(struct loop_devi
for (i = 0; i < size; i++)
*out++ = *in++ ^ key[(i & 511) % keysize];
- kunmap_atomic(loop_buf, KM_USER1);
- kunmap_atomic(raw_buf, KM_USER0);
+ kunmap_atomic(loop_buf);
+ kunmap_atomic(raw_buf);
cond_resched();
return 0;
}
Index: linux-2.6/drivers/block/pktcdvd.c
===================================================================
--- linux-2.6.orig/drivers/block/pktcdvd.c
+++ linux-2.6/drivers/block/pktcdvd.c
@@ -1021,14 +1021,14 @@ static void pkt_copy_bio_data(struct bio
while (copy_size > 0) {
struct bio_vec *src_bvl = bio_iovec_idx(src_bio, seg);
- void *vfrom = kmap_atomic(src_bvl->bv_page, KM_USER0) +
+ void *vfrom = kmap_atomic(src_bvl->bv_page) +
src_bvl->bv_offset + offs;
void *vto = page_address(dst_page) + dst_offs;
int len = min_t(int, copy_size, src_bvl->bv_len - offs);
BUG_ON(len < 0);
memcpy(vto, vfrom, len);
- kunmap_atomic(vfrom, KM_USER0);
+ kunmap_atomic(vfrom);
seg++;
offs = 0;
@@ -1053,10 +1053,10 @@ static void pkt_make_local_copy(struct p
offs = 0;
for (f = 0; f < pkt->frames; f++) {
if (bvec[f].bv_page != pkt->pages[p]) {
- void *vfrom = kmap_atomic(bvec[f].bv_page, KM_USER0) + bvec[f].bv_offset;
+ void *vfrom = kmap_atomic(bvec[f].bv_page) + bvec[f].bv_offset;
void *vto = page_address(pkt->pages[p]) + offs;
memcpy(vto, vfrom, CD_FRAMESIZE);
- kunmap_atomic(vfrom, KM_USER0);
+ kunmap_atomic(vfrom);
bvec[f].bv_page = pkt->pages[p];
bvec[f].bv_offset = offs;
} else {
Index: linux-2.6/drivers/crypto/hifn_795x.c
===================================================================
--- linux-2.6.orig/drivers/crypto/hifn_795x.c
+++ linux-2.6/drivers/crypto/hifn_795x.c
@@ -1731,9 +1731,9 @@ static int ablkcipher_get(void *saddr, u
while (size) {
copy = min(srest, min(dst->length, size));
- daddr = kmap_atomic(sg_page(dst), KM_IRQ0);
+ daddr = kmap_atomic(sg_page(dst));
memcpy(daddr + dst->offset + offset, saddr, copy);
- kunmap_atomic(daddr, KM_IRQ0);
+ kunmap_atomic(daddr);
nbytes -= copy;
size -= copy;
@@ -1793,17 +1793,17 @@ static void hifn_process_ready(struct ab
continue;
}
- saddr = kmap_atomic(sg_page(t), KM_SOFTIRQ0);
+ saddr = kmap_atomic(sg_page(t));
err = ablkcipher_get(saddr, &t->length, t->offset,
dst, nbytes, &nbytes);
if (err < 0) {
- kunmap_atomic(saddr, KM_SOFTIRQ0);
+ kunmap_atomic(saddr);
break;
}
idx += err;
- kunmap_atomic(saddr, KM_SOFTIRQ0);
+ kunmap_atomic(saddr);
}
ablkcipher_walk_exit(&rctx->walk);
Index: linux-2.6/drivers/edac/edac_mc.c
===================================================================
--- linux-2.6.orig/drivers/edac/edac_mc.c
+++ linux-2.6/drivers/edac/edac_mc.c
@@ -588,13 +588,13 @@ static void edac_mc_scrub_block(unsigned
if (PageHighMem(pg))
local_irq_save(flags);
- virt_addr = kmap_atomic(pg, KM_BOUNCE_READ);
+ virt_addr = kmap_atomic(pg);
/* Perform architecture specific atomic scrub operation */
atomic_scrub(virt_addr + offset, size);
/* Unmap and complete */
- kunmap_atomic(virt_addr, KM_BOUNCE_READ);
+ kunmap_atomic(virt_addr);
if (PageHighMem(pg))
local_irq_restore(flags);
Index: linux-2.6/drivers/gpu/drm/drm_cache.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/drm_cache.c
+++ linux-2.6/drivers/gpu/drm/drm_cache.c
@@ -40,10 +40,10 @@ drm_clflush_page(struct page *page)
if (unlikely(page == NULL))
return;
- page_virtual = kmap_atomic(page, KM_USER0);
+ page_virtual = kmap_atomic(page);
for (i = 0; i < PAGE_SIZE; i += boot_cpu_data.x86_clflush_size)
clflush(page_virtual + i);
- kunmap_atomic(page_virtual, KM_USER0);
+ kunmap_atomic(page_virtual);
}
static void drm_cache_flush_clflush(struct page *pages[],
@@ -86,10 +86,10 @@ drm_clflush_pages(struct page *pages[],
if (unlikely(page == NULL))
continue;
- page_virtual = kmap_atomic(page, KM_USER0);
+ page_virtual = kmap_atomic(page);
flush_dcache_range((unsigned long)page_virtual,
(unsigned long)page_virtual + PAGE_SIZE);
- kunmap_atomic(page_virtual, KM_USER0);
+ kunmap_atomic(page_virtual);
}
#else
printk(KERN_ERR "Architecture has no drm_cache.c support\n");
Index: linux-2.6/drivers/gpu/drm/i915/i915_gem.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/i915_gem.c
+++ linux-2.6/drivers/gpu/drm/i915/i915_gem.c
@@ -149,11 +149,11 @@ fast_shmem_read(struct page **pages,
char __iomem *vaddr;
int unwritten;
- vaddr = kmap_atomic(pages[page_base >> PAGE_SHIFT], KM_USER0);
+ vaddr = kmap_atomic(pages[page_base >> PAGE_SHIFT]);
if (vaddr == NULL)
return -ENOMEM;
unwritten = __copy_to_user_inatomic(data, vaddr + page_offset, length);
- kunmap_atomic(vaddr, KM_USER0);
+ kunmap_atomic(vaddr);
if (unwritten)
return -EFAULT;
@@ -179,20 +179,20 @@ slow_shmem_copy(struct page *dst_page,
{
char *dst_vaddr, *src_vaddr;
- dst_vaddr = kmap_atomic(dst_page, KM_USER0);
+ dst_vaddr = kmap_atomic(dst_page);
if (dst_vaddr == NULL)
return -ENOMEM;
- src_vaddr = kmap_atomic(src_page, KM_USER1);
+ src_vaddr = kmap_atomic(src_page);
if (src_vaddr == NULL) {
- kunmap_atomic(dst_vaddr, KM_USER0);
+ kunmap_atomic(dst_vaddr);
return -ENOMEM;
}
memcpy(dst_vaddr + dst_offset, src_vaddr + src_offset, length);
- kunmap_atomic(src_vaddr, KM_USER1);
- kunmap_atomic(dst_vaddr, KM_USER0);
+ kunmap_atomic(src_vaddr);
+ kunmap_atomic(dst_vaddr);
return 0;
}
@@ -217,13 +217,13 @@ slow_shmem_bit17_copy(struct page *gpu_p
cpu_page, cpu_offset, length);
}
- gpu_vaddr = kmap_atomic(gpu_page, KM_USER0);
+ gpu_vaddr = kmap_atomic(gpu_page);
if (gpu_vaddr == NULL)
return -ENOMEM;
- cpu_vaddr = kmap_atomic(cpu_page, KM_USER1);
+ cpu_vaddr = kmap_atomic(cpu_page);
if (cpu_vaddr == NULL) {
- kunmap_atomic(gpu_vaddr, KM_USER0);
+ kunmap_atomic(gpu_vaddr);
return -ENOMEM;
}
@@ -249,8 +249,8 @@ slow_shmem_bit17_copy(struct page *gpu_p
length -= this_length;
}
- kunmap_atomic(cpu_vaddr, KM_USER1);
- kunmap_atomic(gpu_vaddr, KM_USER0);
+ kunmap_atomic(cpu_vaddr);
+ kunmap_atomic(gpu_vaddr);
return 0;
}
@@ -558,11 +558,11 @@ slow_kernel_write(struct io_mapping *map
unsigned long unwritten;
dst_vaddr = io_mapping_map_atomic_wc(mapping, gtt_base);
- src_vaddr = kmap_atomic(user_page, KM_USER1);
+ src_vaddr = kmap_atomic(user_page);
unwritten = __copy_from_user_inatomic_nocache(dst_vaddr + gtt_offset,
src_vaddr + user_offset,
length);
- kunmap_atomic(src_vaddr, KM_USER1);
+ kunmap_atomic(src_vaddr);
io_mapping_unmap_atomic(dst_vaddr);
if (unwritten)
return -EFAULT;
@@ -578,11 +578,11 @@ fast_shmem_write(struct page **pages,
char __iomem *vaddr;
unsigned long unwritten;
- vaddr = kmap_atomic(pages[page_base >> PAGE_SHIFT], KM_USER0);
+ vaddr = kmap_atomic(pages[page_base >> PAGE_SHIFT]);
if (vaddr == NULL)
return -ENOMEM;
unwritten = __copy_from_user_inatomic(vaddr + page_offset, data, length);
- kunmap_atomic(vaddr, KM_USER0);
+ kunmap_atomic(vaddr);
if (unwritten)
return -EFAULT;
@@ -4697,11 +4697,11 @@ void i915_gem_detach_phys_object(struct
page_count = obj->size / PAGE_SIZE;
for (i = 0; i < page_count; i++) {
- char *dst = kmap_atomic(obj_priv->pages[i], KM_USER0);
+ char *dst = kmap_atomic(obj_priv->pages[i]);
char *src = obj_priv->phys_obj->handle->vaddr + (i * PAGE_SIZE);
memcpy(dst, src, PAGE_SIZE);
- kunmap_atomic(dst, KM_USER0);
+ kunmap_atomic(dst);
}
drm_clflush_pages(obj_priv->pages, page_count);
drm_agp_chipset_flush(dev);
@@ -4757,11 +4757,11 @@ i915_gem_attach_phys_object(struct drm_d
page_count = obj->size / PAGE_SIZE;
for (i = 0; i < page_count; i++) {
- char *src = kmap_atomic(obj_priv->pages[i], KM_USER0);
+ char *src = kmap_atomic(obj_priv->pages[i]);
char *dst = obj_priv->phys_obj->handle->vaddr + (i * PAGE_SIZE);
memcpy(dst, src, PAGE_SIZE);
- kunmap_atomic(src, KM_USER0);
+ kunmap_atomic(src);
}
i915_gem_object_put_pages(obj);
Index: linux-2.6/drivers/gpu/drm/i915/i915_gem_debug.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/i915/i915_gem_debug.c
+++ linux-2.6/drivers/gpu/drm/i915/i915_gem_debug.c
@@ -57,13 +57,13 @@ static void
i915_gem_dump_page(struct page *page, uint32_t start, uint32_t end,
uint32_t bias, uint32_t mark)
{
- uint32_t *mem = kmap_atomic(page, KM_USER0);
+ uint32_t *mem = kmap_atomic(page);
int i;
for (i = start; i < end; i += 4)
DRM_INFO("%08x: %08x%s\n",
(int) (bias + i), mem[i / 4],
(bias + i == mark) ? " ********" : "");
- kunmap_atomic(mem, KM_USER0);
+ kunmap_atomic(mem);
/* give syslog time to catch up */
msleep(1);
}
@@ -157,7 +157,7 @@ i915_gem_object_check_coherency(struct d
for (page = 0; page < obj->size / PAGE_SIZE; page++) {
int i;
- backing_map = kmap_atomic(obj_priv->pages[page], KM_USER0);
+ backing_map = kmap_atomic(obj_priv->pages[page]);
if (backing_map == NULL) {
DRM_ERROR("failed to map backing page\n");
@@ -181,13 +181,13 @@ i915_gem_object_check_coherency(struct d
}
}
}
- kunmap_atomic(backing_map, KM_USER0);
+ kunmap_atomic(backing_map);
backing_map = NULL;
}
out:
if (backing_map != NULL)
- kunmap_atomic(backing_map, KM_USER0);
+ kunmap_atomic(backing_map);
iounmap(gtt_mapping);
/* give syslog time to catch up */
Index: linux-2.6/drivers/gpu/drm/ttm/ttm_bo_util.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ linux-2.6/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -148,7 +148,7 @@ static int ttm_copy_io_ttm_page(struct t
src = (void *)((unsigned long)src + (page << PAGE_SHIFT));
#ifdef CONFIG_X86
- dst = kmap_atomic_prot(d, KM_USER0, prot);
+ dst = kmap_atomic_prot(d, prot);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
dst = vmap(&d, 1, 0, prot);
@@ -161,7 +161,7 @@ static int ttm_copy_io_ttm_page(struct t
memcpy_fromio(dst, src, PAGE_SIZE);
#ifdef CONFIG_X86
- kunmap_atomic(dst, KM_USER0);
+ kunmap_atomic(dst);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
vunmap(dst);
@@ -184,7 +184,7 @@ static int ttm_copy_ttm_io_page(struct t
dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT));
#ifdef CONFIG_X86
- src = kmap_atomic_prot(s, KM_USER0, prot);
+ src = kmap_atomic_prot(s, prot);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
src = vmap(&s, 1, 0, prot);
@@ -197,7 +197,7 @@ static int ttm_copy_ttm_io_page(struct t
memcpy_toio(dst, src, PAGE_SIZE);
#ifdef CONFIG_X86
- kunmap_atomic(src, KM_USER0);
+ kunmap_atomic(src);
#else
if (pgprot_val(prot) != pgprot_val(PAGE_KERNEL))
vunmap(src);
Index: linux-2.6/drivers/gpu/drm/ttm/ttm_tt.c
===================================================================
--- linux-2.6.orig/drivers/gpu/drm/ttm/ttm_tt.c
+++ linux-2.6/drivers/gpu/drm/ttm/ttm_tt.c
@@ -491,11 +491,11 @@ static int ttm_tt_swapin(struct ttm_tt *
goto out_err;
preempt_disable();
- from_virtual = kmap_atomic(from_page, KM_USER0);
- to_virtual = kmap_atomic(to_page, KM_USER1);
+ from_virtual = kmap_atomic(from_page);
+ to_virtual = kmap_atomic(to_page);
memcpy(to_virtual, from_virtual, PAGE_SIZE);
- kunmap_atomic(to_virtual, KM_USER1);
- kunmap_atomic(from_virtual, KM_USER0);
+ kunmap_atomic(to_virtual);
+ kunmap_atomic(from_virtual);
preempt_enable();
page_cache_release(from_page);
}
@@ -558,11 +558,11 @@ int ttm_tt_swapout(struct ttm_tt *ttm, s
goto out_err;
preempt_disable();
- from_virtual = kmap_atomic(from_page, KM_USER0);
- to_virtual = kmap_atomic(to_page, KM_USER1);
+ from_virtual = kmap_atomic(from_page);
+ to_virtual = kmap_atomic(to_page);
memcpy(to_virtual, from_virtual, PAGE_SIZE);
- kunmap_atomic(to_virtual, KM_USER1);
- kunmap_atomic(from_virtual, KM_USER0);
+ kunmap_atomic(to_virtual);
+ kunmap_atomic(from_virtual);
preempt_enable();
set_page_dirty(to_page);
mark_page_accessed(to_page);
Index: linux-2.6/drivers/ide/ide-taskfile.c
===================================================================
--- linux-2.6.orig/drivers/ide/ide-taskfile.c
+++ linux-2.6/drivers/ide/ide-taskfile.c
@@ -252,7 +252,7 @@ void ide_pio_bytes(ide_drive_t *drive, s
if (page_is_high)
local_irq_save(flags);
- buf = kmap_atomic(page, KM_BIO_SRC_IRQ) + offset;
+ buf = kmap_atomic(page) + offset;
cmd->nleft -= nr_bytes;
cmd->cursg_ofs += nr_bytes;
@@ -268,7 +268,7 @@ void ide_pio_bytes(ide_drive_t *drive, s
else
hwif->tp_ops->input_data(drive, cmd, buf, nr_bytes);
- kunmap_atomic(buf, KM_BIO_SRC_IRQ);
+ kunmap_atomic(buf);
if (page_is_high)
local_irq_restore(flags);
Index: linux-2.6/drivers/infiniband/ulp/iser/iser_memory.c
===================================================================
--- linux-2.6.orig/drivers/infiniband/ulp/iser/iser_memory.c
+++ linux-2.6/drivers/infiniband/ulp/iser/iser_memory.c
@@ -129,11 +129,11 @@ static int iser_start_rdma_unaligned_sg(
p = mem;
for_each_sg(sgl, sg, data->size, i) {
- from = kmap_atomic(sg_page(sg), KM_USER0);
+ from = kmap_atomic(sg_page(sg));
memcpy(p,
from + sg->offset,
sg->length);
- kunmap_atomic(from, KM_USER0);
+ kunmap_atomic(from);
p += sg->length;
}
}
@@ -189,11 +189,11 @@ void iser_finalize_rdma_unaligned_sg(str
p = mem;
for_each_sg(sgl, sg, sg_size, i) {
- to = kmap_atomic(sg_page(sg), KM_SOFTIRQ0);
+ to = kmap_atomic(sg_page(sg));
memcpy(to + sg->offset,
p,
sg->length);
- kunmap_atomic(to, KM_SOFTIRQ0);
+ kunmap_atomic(to);
p += sg->length;
}
}
Index: linux-2.6/drivers/md/bitmap.c
===================================================================
--- linux-2.6.orig/drivers/md/bitmap.c
+++ linux-2.6/drivers/md/bitmap.c
@@ -494,14 +494,14 @@ void bitmap_update_sb(struct bitmap *bit
return;
}
spin_unlock_irqrestore(&bitmap->lock, flags);
- sb = (bitmap_super_t *)kmap_atomic(bitmap->sb_page, KM_USER0);
+ sb = (bitmap_super_t *)kmap_atomic(bitmap->sb_page);
sb->events = cpu_to_le64(bitmap->mddev->events);
if (bitmap->mddev->events < bitmap->events_cleared) {
/* rocking back to read-only */
bitmap->events_cleared = bitmap->mddev->events;
sb->events_cleared = cpu_to_le64(bitmap->events_cleared);
}
- kunmap_atomic(sb, KM_USER0);
+ kunmap_atomic(sb);
write_page(bitmap, bitmap->sb_page, 1);
}
@@ -512,7 +512,7 @@ void bitmap_print_sb(struct bitmap *bitm
if (!bitmap || !bitmap->sb_page)
return;
- sb = (bitmap_super_t *)kmap_atomic(bitmap->sb_page, KM_USER0);
+ sb = (bitmap_super_t *)kmap_atomic(bitmap->sb_page);
printk(KERN_DEBUG "%s: bitmap file superblock:\n", bmname(bitmap));
printk(KERN_DEBUG " magic: %08x\n", le32_to_cpu(sb->magic));
printk(KERN_DEBUG " version: %d\n", le32_to_cpu(sb->version));
@@ -531,7 +531,7 @@ void bitmap_print_sb(struct bitmap *bitm
printk(KERN_DEBUG " sync size: %llu KB\n",
(unsigned long long)le64_to_cpu(sb->sync_size)/2);
printk(KERN_DEBUG "max write behind: %d\n", le32_to_cpu(sb->write_behind));
- kunmap_atomic(sb, KM_USER0);
+ kunmap_atomic(sb);
}
/* read the superblock from the bitmap file and initialize some bitmap fields */
@@ -560,7 +560,7 @@ static int bitmap_read_sb(struct bitmap
return err;
}
- sb = (bitmap_super_t *)kmap_atomic(bitmap->sb_page, KM_USER0);
+ sb = (bitmap_super_t *)kmap_atomic(bitmap->sb_page);
chunksize = le32_to_cpu(sb->chunksize);
daemon_sleep = le32_to_cpu(sb->daemon_sleep);
@@ -622,7 +622,7 @@ success:
bitmap->events_cleared = bitmap->mddev->events;
err = 0;
out:
- kunmap_atomic(sb, KM_USER0);
+ kunmap_atomic(sb);
if (err)
bitmap_print_sb(bitmap);
return err;
@@ -647,7 +647,7 @@ static int bitmap_mask_state(struct bitm
return 0;
}
spin_unlock_irqrestore(&bitmap->lock, flags);
- sb = (bitmap_super_t *)kmap_atomic(bitmap->sb_page, KM_USER0);
+ sb = (bitmap_super_t *)kmap_atomic(bitmap->sb_page);
old = le32_to_cpu(sb->state) & bits;
switch (op) {
case MASK_SET: sb->state |= cpu_to_le32(bits);
@@ -656,7 +656,7 @@ static int bitmap_mask_state(struct bitm
break;
default: BUG();
}
- kunmap_atomic(sb, KM_USER0);
+ kunmap_atomic(sb);
return old;
}
@@ -824,12 +824,12 @@ static void bitmap_file_set_bit(struct b
bit = file_page_offset(chunk);
/* set the bit */
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
if (bitmap->flags & BITMAP_HOSTENDIAN)
set_bit(bit, kaddr);
else
ext2_set_bit(bit, kaddr);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
PRINTK("set file bit %lu page %lu\n", bit, page->index);
/* record page number so it gets flushed to disk when unplug occurs */
@@ -995,10 +995,10 @@ static int bitmap_init_from_disk(struct
* if bitmap is out of date, dirty the
* whole page and write it out
*/
- paddr = kmap_atomic(page, KM_USER0);
+ paddr = kmap_atomic(page);
memset(paddr + offset, 0xff,
PAGE_SIZE - offset);
- kunmap_atomic(paddr, KM_USER0);
+ kunmap_atomic(paddr);
write_page(bitmap, page, 1);
ret = -EIO;
@@ -1006,12 +1006,12 @@ static int bitmap_init_from_disk(struct
goto err;
}
}
- paddr = kmap_atomic(page, KM_USER0);
+ paddr = kmap_atomic(page);
if (bitmap->flags & BITMAP_HOSTENDIAN)
b = test_bit(bit, paddr);
else
b = ext2_test_bit(bit, paddr);
- kunmap_atomic(paddr, KM_USER0);
+ kunmap_atomic(paddr);
if (b) {
/* if the disk bit is set, set the memory bit */
int needed = ((sector_t)(i+1) << (CHUNK_BLOCK_SHIFT(bitmap))
@@ -1145,10 +1145,10 @@ void bitmap_daemon_work(struct bitmap *b
if (bitmap->need_sync) {
bitmap_super_t *sb;
bitmap->need_sync = 0;
- sb = kmap_atomic(bitmap->sb_page, KM_USER0);
+ sb = kmap_atomic(bitmap->sb_page);
sb->events_cleared =
cpu_to_le64(bitmap->events_cleared);
- kunmap_atomic(sb, KM_USER0);
+ kunmap_atomic(sb);
write_page(bitmap, bitmap->sb_page, 1);
}
spin_lock_irqsave(&bitmap->lock, flags);
@@ -1175,12 +1175,12 @@ void bitmap_daemon_work(struct bitmap *b
-1);
/* clear the bit */
- paddr = kmap_atomic(page, KM_USER0);
+ paddr = kmap_atomic(page);
if (bitmap->flags & BITMAP_HOSTENDIAN)
clear_bit(file_page_offset(j), paddr);
else
ext2_clear_bit(file_page_offset(j), paddr);
- kunmap_atomic(paddr, KM_USER0);
+ kunmap_atomic(paddr);
}
} else
j |= PAGE_COUNTER_MASK;
Index: linux-2.6/drivers/media/video/ivtv/ivtv-udma.c
===================================================================
--- linux-2.6.orig/drivers/media/video/ivtv/ivtv-udma.c
+++ linux-2.6/drivers/media/video/ivtv/ivtv-udma.c
@@ -57,9 +57,9 @@ int ivtv_udma_fill_sg_list (struct ivtv_
if (dma->bouncemap[map_offset] == NULL)
return -1;
local_irq_save(flags);
- src = kmap_atomic(dma->map[map_offset], KM_BOUNCE_READ) + offset;
+ src = kmap_atomic(dma->map[map_offset]) + offset;
memcpy(page_address(dma->bouncemap[map_offset]) + offset, src, len);
- kunmap_atomic(src, KM_BOUNCE_READ);
+ kunmap_atomic(src);
local_irq_restore(flags);
sg_set_page(&dma->SGlist[map_offset], dma->bouncemap[map_offset], len, offset);
}
Index: linux-2.6/drivers/memstick/host/jmb38x_ms.c
===================================================================
--- linux-2.6.orig/drivers/memstick/host/jmb38x_ms.c
+++ linux-2.6/drivers/memstick/host/jmb38x_ms.c
@@ -323,7 +323,7 @@ static int jmb38x_ms_transfer_data(struc
p_cnt = min(p_cnt, length);
local_irq_save(flags);
- buf = kmap_atomic(pg, KM_BIO_SRC_IRQ) + p_off;
+ buf = kmap_atomic(pg) + p_off;
} else {
buf = host->req->data + host->block_pos;
p_cnt = host->req->data_len - host->block_pos;
@@ -339,7 +339,7 @@ static int jmb38x_ms_transfer_data(struc
: jmb38x_ms_read_reg_data(host, buf, p_cnt);
if (host->req->long_data) {
- kunmap_atomic(buf - p_off, KM_BIO_SRC_IRQ);
+ kunmap_atomic(buf - p_off);
local_irq_restore(flags);
}
Index: linux-2.6/drivers/memstick/host/tifm_ms.c
===================================================================
--- linux-2.6.orig/drivers/memstick/host/tifm_ms.c
+++ linux-2.6/drivers/memstick/host/tifm_ms.c
@@ -209,7 +209,7 @@ static unsigned int tifm_ms_transfer_dat
p_cnt = min(p_cnt, length);
local_irq_save(flags);
- buf = kmap_atomic(pg, KM_BIO_SRC_IRQ) + p_off;
+ buf = kmap_atomic(pg) + p_off;
} else {
buf = host->req->data + host->block_pos;
p_cnt = host->req->data_len - host->block_pos;
@@ -220,7 +220,7 @@ static unsigned int tifm_ms_transfer_dat
: tifm_ms_read_data(host, buf, p_cnt);
if (host->req->long_data) {
- kunmap_atomic(buf - p_off, KM_BIO_SRC_IRQ);
+ kunmap_atomic(buf - p_off);
local_irq_restore(flags);
}
Index: linux-2.6/drivers/mmc/host/at91_mci.c
===================================================================
--- linux-2.6.orig/drivers/mmc/host/at91_mci.c
+++ linux-2.6/drivers/mmc/host/at91_mci.c
@@ -218,7 +218,7 @@ static inline void at91_mci_sg_to_dma(st
sg = &data->sg[i];
- sgbuffer = kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+ sgbuffer = kmap_atomic(sg_page(sg)) + sg->offset;
amount = min(size, sg->length);
size -= amount;
@@ -232,7 +232,7 @@ static inline void at91_mci_sg_to_dma(st
dmabuf += amount;
}
- kunmap_atomic(sgbuffer, KM_BIO_SRC_IRQ);
+ kunmap_atomic(sgbuffer);
if (size == 0)
break;
@@ -351,13 +351,13 @@ static void at91_mci_post_dma_read(struc
int index;
/* Swap the contents of the buffer */
- buffer = kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+ buffer = kmap_atomic(sg_page(sg)) + sg->offset;
pr_debug("buffer = %p, length = %d\n", buffer, sg->length);
for (index = 0; index < (sg->length / 4); index++)
buffer[index] = swab32(buffer[index]);
- kunmap_atomic(buffer, KM_BIO_SRC_IRQ);
+ kunmap_atomic(buffer);
}
flush_dcache_page(sg_page(sg));
Index: linux-2.6/drivers/mmc/host/mmci.h
===================================================================
--- linux-2.6.orig/drivers/mmc/host/mmci.h
+++ linux-2.6/drivers/mmc/host/mmci.h
@@ -200,11 +200,11 @@ static inline char *mmci_kmap_atomic(str
struct scatterlist *sg = host->sg_ptr;
local_irq_save(*flags);
- return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+ return kmap_atomic(sg_page(sg)) + sg->offset;
}
static inline void mmci_kunmap_atomic(struct mmci_host *host, void *buffer, unsigned long *flags)
{
- kunmap_atomic(buffer, KM_BIO_SRC_IRQ);
+ kunmap_atomic(buffer);
local_irq_restore(*flags);
}
Index: linux-2.6/drivers/mmc/host/msm_sdcc.c
===================================================================
--- linux-2.6.orig/drivers/mmc/host/msm_sdcc.c
+++ linux-2.6/drivers/mmc/host/msm_sdcc.c
@@ -516,7 +516,7 @@ msmsdcc_pio_irq(int irq, void *dev_id)
len = msmsdcc_pio_write(host, buffer, remain, status);
/* Unmap the buffer */
- kunmap_atomic(buffer, KM_BIO_SRC_IRQ);
+ kunmap_atomic(buffer);
local_irq_restore(flags);
host->pio.sg_off += len;
Index: linux-2.6/drivers/mmc/host/sdhci.c
===================================================================
--- linux-2.6.orig/drivers/mmc/host/sdhci.c
+++ linux-2.6/drivers/mmc/host/sdhci.c
@@ -367,12 +367,12 @@ static void sdhci_transfer_pio(struct sd
static char *sdhci_kmap_atomic(struct scatterlist *sg, unsigned long *flags)
{
local_irq_save(*flags);
- return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+ return kmap_atomic(sg_page(sg)) + sg->offset;
}
static void sdhci_kunmap_atomic(void *buffer, unsigned long *flags)
{
- kunmap_atomic(buffer, KM_BIO_SRC_IRQ);
+ kunmap_atomic(buffer);
local_irq_restore(*flags);
}
Index: linux-2.6/drivers/mmc/host/tifm_sd.c
===================================================================
--- linux-2.6.orig/drivers/mmc/host/tifm_sd.c
+++ linux-2.6/drivers/mmc/host/tifm_sd.c
@@ -117,7 +117,7 @@ static void tifm_sd_read_fifo(struct tif
unsigned char *buf;
unsigned int pos = 0, val;
- buf = kmap_atomic(pg, KM_BIO_DST_IRQ) + off;
+ buf = kmap_atomic(pg) + off;
if (host->cmd_flags & DATA_CARRY) {
buf[pos++] = host->bounce_buf_data[0];
host->cmd_flags &= ~DATA_CARRY;
@@ -133,7 +133,7 @@ static void tifm_sd_read_fifo(struct tif
}
buf[pos++] = (val >> 8) & 0xff;
}
- kunmap_atomic(buf - off, KM_BIO_DST_IRQ);
+ kunmap_atomic(buf - off);
}
static void tifm_sd_write_fifo(struct tifm_sd *host, struct page *pg,
@@ -143,7 +143,7 @@ static void tifm_sd_write_fifo(struct ti
unsigned char *buf;
unsigned int pos = 0, val;
- buf = kmap_atomic(pg, KM_BIO_SRC_IRQ) + off;
+ buf = kmap_atomic(pg) + off;
if (host->cmd_flags & DATA_CARRY) {
val = host->bounce_buf_data[0] | ((buf[pos++] << 8) & 0xff00);
writel(val, sock->addr + SOCK_MMCSD_DATA);
@@ -160,7 +160,7 @@ static void tifm_sd_write_fifo(struct ti
val |= (buf[pos++] << 8) & 0xff00;
writel(val, sock->addr + SOCK_MMCSD_DATA);
}
- kunmap_atomic(buf - off, KM_BIO_SRC_IRQ);
+ kunmap_atomic(buf - off);
}
static void tifm_sd_transfer_data(struct tifm_sd *host)
@@ -211,13 +211,13 @@ static void tifm_sd_copy_page(struct pag
struct page *src, unsigned int src_off,
unsigned int count)
{
- unsigned char *src_buf = kmap_atomic(src, KM_BIO_SRC_IRQ) + src_off;
- unsigned char *dst_buf = kmap_atomic(dst, KM_BIO_DST_IRQ) + dst_off;
+ unsigned char *src_buf = kmap_atomic(src) + src_off;
+ unsigned char *dst_buf = kmap_atomic(dst) + dst_off;
memcpy(dst_buf, src_buf, count);
- kunmap_atomic(dst_buf - dst_off, KM_BIO_DST_IRQ);
- kunmap_atomic(src_buf - src_off, KM_BIO_SRC_IRQ);
+ kunmap_atomic(dst_buf - dst_off);
+ kunmap_atomic(src_buf - src_off);
}
static void tifm_sd_bounce_block(struct tifm_sd *host, struct mmc_data *r_data)
Index: linux-2.6/drivers/mmc/host/tmio_mmc.h
===================================================================
--- linux-2.6.orig/drivers/mmc/host/tmio_mmc.h
+++ linux-2.6/drivers/mmc/host/tmio_mmc.h
@@ -206,13 +206,13 @@ static inline char *tmio_mmc_kmap_atomic
struct scatterlist *sg = host->sg_ptr;
local_irq_save(*flags);
- return kmap_atomic(sg_page(sg), KM_BIO_SRC_IRQ) + sg->offset;
+ return kmap_atomic(sg_page(sg)) + sg->offset;
}
static inline void tmio_mmc_kunmap_atomic(struct tmio_mmc_host *host,
unsigned long *flags)
{
- kunmap_atomic(sg_page(host->sg_ptr), KM_BIO_SRC_IRQ);
+ kunmap_atomic(sg_page(host->sg_ptr));
local_irq_restore(*flags);
}
Index: linux-2.6/drivers/net/cassini.c
===================================================================
--- linux-2.6.orig/drivers/net/cassini.c
+++ linux-2.6/drivers/net/cassini.c
@@ -102,8 +102,8 @@
#include <asm/byteorder.h>
#include <asm/uaccess.h>
-#define cas_page_map(x) kmap_atomic((x), KM_SKB_DATA_SOFTIRQ)
-#define cas_page_unmap(x) kunmap_atomic((x), KM_SKB_DATA_SOFTIRQ)
+#define cas_page_map(x) kmap_atomic((x))
+#define cas_page_unmap(x) kunmap_atomic((x))
#define CAS_NCPUS num_online_cpus()
#if defined(CONFIG_CASSINI_NAPI) && defined(HAVE_NETDEV_POLL)
Index: linux-2.6/drivers/net/e1000e/netdev.c
===================================================================
--- linux-2.6.orig/drivers/net/e1000e/netdev.c
+++ linux-2.6/drivers/net/e1000e/netdev.c
@@ -796,9 +796,9 @@ static bool e1000_clean_rx_irq_ps(struct
*/
pci_dma_sync_single_for_cpu(pdev, ps_page->dma,
PAGE_SIZE, PCI_DMA_FROMDEVICE);
- vaddr = kmap_atomic(ps_page->page, KM_SKB_DATA_SOFTIRQ);
+ vaddr = kmap_atomic(ps_page->page);
memcpy(skb_tail_pointer(skb), vaddr, l1);
- kunmap_atomic(vaddr, KM_SKB_DATA_SOFTIRQ);
+ kunmap_atomic(vaddr);
pci_dma_sync_single_for_device(pdev, ps_page->dma,
PAGE_SIZE, PCI_DMA_FROMDEVICE);
@@ -991,12 +991,10 @@ static bool e1000_clean_jumbo_rx_irq(str
if (length <= copybreak &&
skb_tailroom(skb) >= length) {
u8 *vaddr;
- vaddr = kmap_atomic(buffer_info->page,
- KM_SKB_DATA_SOFTIRQ);
+ vaddr = kmap_atomic(buffer_info->page);
memcpy(skb_tail_pointer(skb), vaddr,
length);
- kunmap_atomic(vaddr,
- KM_SKB_DATA_SOFTIRQ);
+ kunmap_atomic(vaddr);
/* re-use the page, so don't erase
* buffer_info->page */
skb_put(skb, length);
Index: linux-2.6/drivers/scsi/arcmsr/arcmsr_hba.c
===================================================================
--- linux-2.6.orig/drivers/scsi/arcmsr/arcmsr_hba.c
+++ linux-2.6/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -1370,7 +1370,7 @@ static int arcmsr_iop_message_xfer(struc
/* 4 bytes: Areca io control code */
sg = scsi_sglist(cmd);
- buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
+ buffer = kmap_atomic(sg_page(sg)) + sg->offset;
if (scsi_sg_count(cmd) > 1) {
retvalue = ARCMSR_MESSAGE_FAIL;
goto message_out;
@@ -1573,7 +1573,7 @@ static int arcmsr_iop_message_xfer(struc
}
message_out:
sg = scsi_sglist(cmd);
- kunmap_atomic(buffer - sg->offset, KM_IRQ0);
+ kunmap_atomic(buffer - sg->offset);
return retvalue;
}
@@ -1618,11 +1618,11 @@ static void arcmsr_handle_virtual_comman
strncpy(&inqdata[32], "R001", 4); /* Product Revision */
sg = scsi_sglist(cmd);
- buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
+ buffer = kmap_atomic(sg_page(sg)) + sg->offset;
memcpy(buffer, inqdata, sizeof(inqdata));
sg = scsi_sglist(cmd);
- kunmap_atomic(buffer - sg->offset, KM_IRQ0);
+ kunmap_atomic(buffer - sg->offset);
cmd->scsi_done(cmd);
}
Index: linux-2.6/drivers/scsi/cxgb3i/cxgb3i_pdu.c
===================================================================
--- linux-2.6.orig/drivers/scsi/cxgb3i/cxgb3i_pdu.c
+++ linux-2.6/drivers/scsi/cxgb3i/cxgb3i_pdu.c
@@ -324,7 +324,7 @@ int cxgb3i_conn_init_pdu(struct iscsi_ta
memcpy(dst, src+frag->page_offset, frag->size);
dst += frag->size;
- kunmap_atomic(src, KM_SOFTIRQ0);
+ kunmap_atomic(src);
}
if (padlen) {
memset(dst, 0, padlen);
Index: linux-2.6/drivers/scsi/fcoe/fcoe.c
===================================================================
--- linux-2.6.orig/drivers/scsi/fcoe/fcoe.c
+++ linux-2.6/drivers/scsi/fcoe/fcoe.c
@@ -1162,7 +1162,7 @@ u32 fcoe_fc_crc(struct fc_frame *fp)
data = kmap_atomic(frag->page + (off >> PAGE_SHIFT),
KM_SKB_DATA_SOFTIRQ);
crc = crc32(crc, data + (off & ~PAGE_MASK), clen);
- kunmap_atomic(data, KM_SKB_DATA_SOFTIRQ);
+ kunmap_atomic(data);
off += clen;
len -= clen;
}
@@ -1236,7 +1236,7 @@ int fcoe_xmit(struct fc_lport *lp, struc
return -ENOMEM;
}
frag = &skb_shinfo(skb)->frags[skb_shinfo(skb)->nr_frags - 1];
- cp = kmap_atomic(frag->page, KM_SKB_DATA_SOFTIRQ)
+ cp = kmap_atomic(frag->page)
+ frag->page_offset;
} else {
cp = (struct fcoe_crc_eof *)skb_put(skb, tlen);
@@ -1247,7 +1247,7 @@ int fcoe_xmit(struct fc_lport *lp, struc
cp->fcoe_crc32 = cpu_to_le32(~crc);
if (skb_is_nonlinear(skb)) {
- kunmap_atomic(cp, KM_SKB_DATA_SOFTIRQ);
+ kunmap_atomic(cp);
cp = NULL;
}
Index: linux-2.6/drivers/scsi/gdth.c
===================================================================
--- linux-2.6.orig/drivers/scsi/gdth.c
+++ linux-2.6/drivers/scsi/gdth.c
@@ -2307,10 +2307,10 @@ static void gdth_copy_internal_data(gdth
return;
}
local_irq_save(flags);
- address = kmap_atomic(sg_page(sl), KM_BIO_SRC_IRQ) + sl->offset;
+ address = kmap_atomic(sg_page(sl)) + sl->offset;
memcpy(address, buffer, cpnow);
flush_dcache_page(sg_page(sl));
- kunmap_atomic(address, KM_BIO_SRC_IRQ);
+ kunmap_atomic(address);
local_irq_restore(flags);
if (cpsum == cpcount)
break;
Index: linux-2.6/drivers/scsi/ips.c
===================================================================
--- linux-2.6.orig/drivers/scsi/ips.c
+++ linux-2.6/drivers/scsi/ips.c
@@ -1509,14 +1509,14 @@ static int ips_is_passthru(struct scsi_c
/* kmap_atomic() ensures addressability of the user buffer.*/
/* local_irq_save() protects the KM_IRQ0 address slot. */
local_irq_save(flags);
- buffer = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
+ buffer = kmap_atomic(sg_page(sg)) + sg->offset;
if (buffer && buffer[0] == 'C' && buffer[1] == 'O' &&
buffer[2] == 'P' && buffer[3] == 'P') {
- kunmap_atomic(buffer - sg->offset, KM_IRQ0);
+ kunmap_atomic(buffer - sg->offset);
local_irq_restore(flags);
return 1;
}
- kunmap_atomic(buffer - sg->offset, KM_IRQ0);
+ kunmap_atomic(buffer - sg->offset);
local_irq_restore(flags);
}
return 0;
Index: linux-2.6/drivers/scsi/libfc/fc_fcp.c
===================================================================
--- linux-2.6.orig/drivers/scsi/libfc/fc_fcp.c
+++ linux-2.6/drivers/scsi/libfc/fc_fcp.c
@@ -387,7 +387,7 @@ static void fc_fcp_recv_data(struct fc_f
memcpy((char *)page_addr + (off & ~PAGE_MASK), buf,
sg_bytes);
- kunmap_atomic(page_addr, KM_SOFTIRQ0);
+ kunmap_atomic(page_addr);
buf += sg_bytes;
offset += sg_bytes;
remaining -= sg_bytes;
@@ -564,7 +564,7 @@ static int fc_fcp_send_data(struct fc_fc
KM_SOFTIRQ0);
memcpy(data, (char *)page_addr + (off & ~PAGE_MASK),
sg_bytes);
- kunmap_atomic(page_addr, KM_SOFTIRQ0);
+ kunmap_atomic(page_addr);
data += sg_bytes;
}
offset += sg_bytes;
Index: linux-2.6/drivers/scsi/libiscsi_tcp.c
===================================================================
--- linux-2.6.orig/drivers/scsi/libiscsi_tcp.c
+++ linux-2.6/drivers/scsi/libiscsi_tcp.c
@@ -131,14 +131,14 @@ static void iscsi_tcp_segment_map(struct
if (page_count(sg_page(sg)) >= 1 && !recv)
return;
- segment->sg_mapped = kmap_atomic(sg_page(sg), KM_SOFTIRQ0);
+ segment->sg_mapped = kmap_atomic(sg_page(sg));
segment->data = segment->sg_mapped + sg->offset + segment->sg_offset;
}
void iscsi_tcp_segment_unmap(struct iscsi_segment *segment)
{
if (segment->sg_mapped) {
- kunmap_atomic(segment->sg_mapped, KM_SOFTIRQ0);
+ kunmap_atomic(segment->sg_mapped);
segment->sg_mapped = NULL;
segment->data = NULL;
}
Index: linux-2.6/drivers/scsi/libsas/sas_host_smp.c
===================================================================
--- linux-2.6.orig/drivers/scsi/libsas/sas_host_smp.c
+++ linux-2.6/drivers/scsi/libsas/sas_host_smp.c
@@ -159,9 +159,9 @@ int sas_smp_host_handler(struct Scsi_Hos
}
local_irq_disable();
- buf = kmap_atomic(bio_page(req->bio), KM_USER0) + bio_offset(req->bio);
+ buf = kmap_atomic(bio_page(req->bio)) + bio_offset(req->bio);
memcpy(req_data, buf, blk_rq_bytes(req));
- kunmap_atomic(buf - bio_offset(req->bio), KM_USER0);
+ kunmap_atomic(buf - bio_offset(req->bio));
local_irq_enable();
if (req_data[0] != SMP_REQUEST)
@@ -260,10 +260,10 @@ int sas_smp_host_handler(struct Scsi_Hos
}
local_irq_disable();
- buf = kmap_atomic(bio_page(rsp->bio), KM_USER0) + bio_offset(rsp->bio);
+ buf = kmap_atomic(bio_page(rsp->bio)) + bio_offset(rsp->bio);
memcpy(buf, resp_data, blk_rq_bytes(rsp));
flush_kernel_dcache_page(bio_page(rsp->bio));
- kunmap_atomic(buf - bio_offset(rsp->bio), KM_USER0);
+ kunmap_atomic(buf - bio_offset(rsp->bio));
local_irq_enable();
out:
Index: linux-2.6/drivers/scsi/megaraid.c
===================================================================
--- linux-2.6.orig/drivers/scsi/megaraid.c
+++ linux-2.6/drivers/scsi/megaraid.c
@@ -659,10 +659,10 @@ mega_build_cmd(adapter_t *adapter, Scsi_
struct scatterlist *sg;
sg = scsi_sglist(cmd);
- buf = kmap_atomic(sg_page(sg), KM_IRQ0) + sg->offset;
+ buf = kmap_atomic(sg_page(sg)) + sg->offset;
memset(buf, 0, cmd->cmnd[4]);
- kunmap_atomic(buf - sg->offset, KM_IRQ0);
+ kunmap_atomic(buf - sg->offset);
cmd->result = (DID_OK << 16);
cmd->scsi_done(cmd);
Index: linux-2.6/drivers/scsi/mvsas/mv_sas.c
===================================================================
--- linux-2.6.orig/drivers/scsi/mvsas/mv_sas.c
+++ linux-2.6/drivers/scsi/mvsas/mv_sas.c
@@ -556,9 +556,9 @@ static int mvs_task_prep_smp(struct mvs_
#if _MV_DUMP
/* copy cmd table */
- from = kmap_atomic(sg_page(sg_req), KM_IRQ0);
+ from = kmap_atomic(sg_page(sg_req));
memcpy(buf_cmd, from + sg_req->offset, req_len);
- kunmap_atomic(from, KM_IRQ0);
+ kunmap_atomic(from);
#endif
return 0;
@@ -1849,11 +1849,11 @@ int mvs_slot_complete(struct mvs_info *m
case SAS_PROTOCOL_SMP: {
struct scatterlist *sg_resp = &task->smp_task.smp_resp;
tstat->stat = SAM_GOOD;
- to = kmap_atomic(sg_page(sg_resp), KM_IRQ0);
+ to = kmap_atomic(sg_page(sg_resp));
memcpy(to + sg_resp->offset,
slot->response + sizeof(struct mvs_err_info),
sg_dma_len(sg_resp));
- kunmap_atomic(to, KM_IRQ0);
+ kunmap_atomic(to);
break;
}
Index: linux-2.6/drivers/scsi/scsi_debug.c
===================================================================
--- linux-2.6.orig/drivers/scsi/scsi_debug.c
+++ linux-2.6/drivers/scsi/scsi_debug.c
@@ -1651,7 +1651,7 @@ static int prot_verify_read(struct scsi_
scsi_for_each_prot_sg(SCpnt, psgl, scsi_prot_sg_count(SCpnt), i) {
int len = min(psgl->length, resid);
- paddr = kmap_atomic(sg_page(psgl), KM_IRQ0) + psgl->offset;
+ paddr = kmap_atomic(sg_page(psgl)) + psgl->offset;
memcpy(paddr, dif_storep + dif_offset(sector), len);
sector += len >> 3;
@@ -1661,7 +1661,7 @@ static int prot_verify_read(struct scsi_
sector = do_div(tmp_sec, sdebug_store_sectors);
}
resid -= len;
- kunmap_atomic(paddr, KM_IRQ0);
+ kunmap_atomic(paddr);
}
dix_reads++;
@@ -1757,12 +1757,12 @@ static int prot_verify_write(struct scsi
BUG_ON(scsi_sg_count(SCpnt) == 0);
BUG_ON(scsi_prot_sg_count(SCpnt) == 0);
- paddr = kmap_atomic(sg_page(psgl), KM_IRQ1) + psgl->offset;
+ paddr = kmap_atomic(sg_page(psgl)) + psgl->offset;
ppage_offset = 0;
/* For each data page */
scsi_for_each_sg(SCpnt, dsgl, scsi_sg_count(SCpnt), i) {
- daddr = kmap_atomic(sg_page(dsgl), KM_IRQ0) + dsgl->offset;
+ daddr = kmap_atomic(sg_page(dsgl)) + dsgl->offset;
/* For each sector-sized chunk in data page */
for (j = 0 ; j < dsgl->length ; j += scsi_debug_sector_size) {
@@ -1771,10 +1771,10 @@ static int prot_verify_write(struct scsi
* protection page advance to the next one
*/
if (ppage_offset >= psgl->length) {
- kunmap_atomic(paddr, KM_IRQ1);
+ kunmap_atomic(paddr);
psgl = sg_next(psgl);
BUG_ON(psgl == NULL);
- paddr = kmap_atomic(sg_page(psgl), KM_IRQ1)
+ paddr = kmap_atomic(sg_page(psgl))
+ psgl->offset;
ppage_offset = 0;
}
@@ -1836,10 +1836,10 @@ static int prot_verify_write(struct scsi
ppage_offset += sizeof(struct sd_dif_tuple);
}
- kunmap_atomic(daddr, KM_IRQ0);
+ kunmap_atomic(daddr);
}
- kunmap_atomic(paddr, KM_IRQ1);
+ kunmap_atomic(paddr);
dix_writes++;
@@ -1847,8 +1847,8 @@ static int prot_verify_write(struct scsi
out:
dif_errors++;
- kunmap_atomic(daddr, KM_IRQ0);
- kunmap_atomic(paddr, KM_IRQ1);
+ kunmap_atomic(daddr);
+ kunmap_atomic(paddr);
return ret;
}
@@ -1959,7 +1959,7 @@ static int resp_xdwriteread(struct scsi_
offset = 0;
for_each_sg(sdb->table.sgl, sg, sdb->table.nents, i) {
- kaddr = (unsigned char *)kmap_atomic(sg_page(sg), KM_USER0);
+ kaddr = (unsigned char *)kmap_atomic(sg_page(sg));
if (!kaddr)
goto out;
@@ -1967,7 +1967,7 @@ static int resp_xdwriteread(struct scsi_
*(kaddr + sg->offset + j) ^= *(buf + offset + j);
offset += sg->length;
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
ret = 0;
out:
Index: linux-2.6/drivers/scsi/scsi_lib.c
===================================================================
--- linux-2.6.orig/drivers/scsi/scsi_lib.c
+++ linux-2.6/drivers/scsi/scsi_lib.c
@@ -2535,7 +2535,7 @@ void *scsi_kmap_atomic_sg(struct scatter
if (*len > sg_len)
*len = sg_len;
- return kmap_atomic(page, KM_BIO_SRC_IRQ);
+ return kmap_atomic(page);
}
EXPORT_SYMBOL(scsi_kmap_atomic_sg);
@@ -2545,6 +2545,6 @@ EXPORT_SYMBOL(scsi_kmap_atomic_sg);
*/
void scsi_kunmap_atomic_sg(void *virt)
{
- kunmap_atomic(virt, KM_BIO_SRC_IRQ);
+ kunmap_atomic(virt);
}
EXPORT_SYMBOL(scsi_kunmap_atomic_sg);
Index: linux-2.6/drivers/scsi/sd_dif.c
===================================================================
--- linux-2.6.orig/drivers/scsi/sd_dif.c
+++ linux-2.6/drivers/scsi/sd_dif.c
@@ -458,7 +458,7 @@ int sd_dif_prepare(struct request *rq, s
virt = bio->bi_integrity->bip_sector & 0xffffffff;
bip_for_each_vec(iv, bio->bi_integrity, i) {
- sdt = kmap_atomic(iv->bv_page, KM_USER0)
+ sdt = kmap_atomic(iv->bv_page)
+ iv->bv_offset;
for (j = 0 ; j < iv->bv_len ; j += tuple_sz, sdt++) {
@@ -471,14 +471,14 @@ int sd_dif_prepare(struct request *rq, s
phys++;
}
- kunmap_atomic(sdt, KM_USER0);
+ kunmap_atomic(sdt);
}
}
return 0;
error:
- kunmap_atomic(sdt, KM_USER0);
+ kunmap_atomic(sdt);
sd_printk(KERN_ERR, sdkp, "%s: virt %u, phys %u, ref %u, app %4x\n",
__func__, virt, phys, be32_to_cpu(sdt->ref_tag),
be16_to_cpu(sdt->app_tag));
@@ -517,13 +517,13 @@ void sd_dif_complete(struct scsi_cmnd *s
virt = bio->bi_integrity->bip_sector & 0xffffffff;
bip_for_each_vec(iv, bio->bi_integrity, i) {
- sdt = kmap_atomic(iv->bv_page, KM_USER0)
+ sdt = kmap_atomic(iv->bv_page)
+ iv->bv_offset;
for (j = 0 ; j < iv->bv_len ; j += tuple_sz, sdt++) {
if (sectors == 0) {
- kunmap_atomic(sdt, KM_USER0);
+ kunmap_atomic(sdt);
return;
}
@@ -538,7 +538,7 @@ void sd_dif_complete(struct scsi_cmnd *s
sectors--;
}
- kunmap_atomic(sdt, KM_USER0);
+ kunmap_atomic(sdt);
}
}
}
Index: linux-2.6/drivers/staging/hv/RndisFilter.c
===================================================================
--- linux-2.6.orig/drivers/staging/hv/RndisFilter.c
+++ linux-2.6/drivers/staging/hv/RndisFilter.c
@@ -410,7 +410,7 @@ static int RndisFilterOnReceive(struct h
}
rndisHeader = (struct rndis_message *)kmap_atomic(
- pfn_to_page(Packet->PageBuffers[0].Pfn), KM_IRQ0);
+ pfn_to_page(Packet->PageBuffers[0].Pfn));
rndisHeader = (void *)((unsigned long)rndisHeader +
Packet->PageBuffers[0].Offset);
@@ -448,7 +448,7 @@ static int RndisFilterOnReceive(struct h
sizeof(struct rndis_message) :
rndisHeader->MessageLength);
- kunmap_atomic(rndisHeader - Packet->PageBuffers[0].Offset, KM_IRQ0);
+ kunmap_atomic(rndisHeader - Packet->PageBuffers[0].Offset);
DumpRndisMessage(&rndisMessage);
Index: linux-2.6/drivers/staging/hv/netvsc_drv.c
===================================================================
--- linux-2.6.orig/drivers/staging/hv/netvsc_drv.c
+++ linux-2.6/drivers/staging/hv/netvsc_drv.c
@@ -351,7 +351,7 @@ static int netvsc_recv_callback(struct h
packet->PageBuffers[i].Length);
kunmap_atomic((void *)((unsigned long)data -
- packet->PageBuffers[i].Offset), KM_IRQ1);
+ packet->PageBuffers[i].Offset));
}
local_irq_restore(flags);
Index: linux-2.6/drivers/staging/hv/storvsc_drv.c
===================================================================
--- linux-2.6.orig/drivers/staging/hv/storvsc_drv.c
+++ linux-2.6/drivers/staging/hv/storvsc_drv.c
@@ -533,7 +533,7 @@ static unsigned int copy_to_bounce_buffe
ASSERT(orig_sgl[i].offset + orig_sgl[i].length <= PAGE_SIZE);
if (j == 0)
- bounce_addr = (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])), KM_IRQ0);
+ bounce_addr = (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])));
while (srclen) {
/* assume bounce offset always == 0 */
@@ -550,19 +550,19 @@ static unsigned int copy_to_bounce_buffe
if (bounce_sgl[j].length == PAGE_SIZE) {
/* full..move to next entry */
- kunmap_atomic((void *)bounce_addr, KM_IRQ0);
+ kunmap_atomic((void *)bounce_addr);
j++;
/* if we need to use another bounce buffer */
if (srclen || i != orig_sgl_count - 1)
- bounce_addr = (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])), KM_IRQ0);
+ bounce_addr = (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])));
} else if (srclen == 0 && i == orig_sgl_count - 1) {
/* unmap the last bounce that is < PAGE_SIZE */
- kunmap_atomic((void *)bounce_addr, KM_IRQ0);
+ kunmap_atomic((void *)bounce_addr);
}
}
- kunmap_atomic((void *)(src_addr - orig_sgl[i].offset), KM_IRQ0);
+ kunmap_atomic((void *)(src_addr - orig_sgl[i].offset));
}
local_irq_restore(flags);
@@ -594,7 +594,7 @@ static unsigned int copy_from_bounce_buf
ASSERT(orig_sgl[i].offset + orig_sgl[i].length <= PAGE_SIZE);
if (j == 0)
- bounce_addr = (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])), KM_IRQ0);
+ bounce_addr = (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])));
while (destlen) {
src = bounce_addr + bounce_sgl[j].offset;
@@ -610,15 +610,15 @@ static unsigned int copy_from_bounce_buf
if (bounce_sgl[j].offset == bounce_sgl[j].length) {
/* full */
- kunmap_atomic((void *)bounce_addr, KM_IRQ0);
+ kunmap_atomic((void *)bounce_addr);
j++;
/* if we need to use another bounce buffer */
if (destlen || i != orig_sgl_count - 1)
- bounce_addr = (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])), KM_IRQ0);
+ bounce_addr = (unsigned long)kmap_atomic(sg_page((&bounce_sgl[j])));
} else if (destlen == 0 && i == orig_sgl_count - 1) {
/* unmap the last bounce that is < PAGE_SIZE */
- kunmap_atomic((void *)bounce_addr, KM_IRQ0);
+ kunmap_atomic((void *)bounce_addr);
}
}
Index: linux-2.6/drivers/staging/pohmelfs/inode.c
===================================================================
--- linux-2.6.orig/drivers/staging/pohmelfs/inode.c
+++ linux-2.6/drivers/staging/pohmelfs/inode.c
@@ -614,11 +614,11 @@ static int pohmelfs_write_begin(struct f
}
if (len != PAGE_CACHE_SIZE) {
- void *kaddr = kmap_atomic(page, KM_USER0);
+ void *kaddr = kmap_atomic(page);
memset(kaddr + start, 0, PAGE_CACHE_SIZE - start);
flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
SetPageUptodate(page);
}
@@ -644,11 +644,11 @@ static int pohmelfs_write_end(struct fil
if (copied != len) {
unsigned from = pos & (PAGE_CACHE_SIZE - 1);
- void *kaddr = kmap_atomic(page, KM_USER0);
+ void *kaddr = kmap_atomic(page);
memset(kaddr + from + copied, 0, len - copied);
flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
SetPageUptodate(page);
Index: linux-2.6/fs/afs/fsclient.c
===================================================================
--- linux-2.6.orig/fs/afs/fsclient.c
+++ linux-2.6/fs/afs/fsclient.c
@@ -363,10 +363,10 @@ static int afs_deliver_fs_fetch_data(str
_debug("extract data");
if (call->count > 0) {
page = call->reply3;
- buffer = kmap_atomic(page, KM_USER0);
+ buffer = kmap_atomic(page);
ret = afs_extract_data(call, skb, last, buffer,
call->count);
- kunmap_atomic(buffer, KM_USER0);
+ kunmap_atomic(buffer);
switch (ret) {
case 0: break;
case -EAGAIN: return 0;
@@ -409,9 +409,9 @@ static int afs_deliver_fs_fetch_data(str
if (call->count < PAGE_SIZE) {
_debug("clear");
page = call->reply3;
- buffer = kmap_atomic(page, KM_USER0);
+ buffer = kmap_atomic(page);
memset(buffer + call->count, 0, PAGE_SIZE - call->count);
- kunmap_atomic(buffer, KM_USER0);
+ kunmap_atomic(buffer);
}
_leave(" = 0 [done]");
Index: linux-2.6/fs/afs/mntpt.c
===================================================================
--- linux-2.6.orig/fs/afs/mntpt.c
+++ linux-2.6/fs/afs/mntpt.c
@@ -172,9 +172,9 @@ static struct vfsmount *afs_mntpt_do_aut
if (PageError(page))
goto error;
- buf = kmap_atomic(page, KM_USER0);
+ buf = kmap_atomic(page);
memcpy(devname, buf, size);
- kunmap_atomic(buf, KM_USER0);
+ kunmap_atomic(buf);
page_cache_release(page);
page = NULL;
Index: linux-2.6/fs/aio.c
===================================================================
--- linux-2.6.orig/fs/aio.c
+++ linux-2.6/fs/aio.c
@@ -156,7 +156,7 @@ static int aio_setup_ring(struct kioctx
info->nr = nr_events; /* trusted copy */
- ring = kmap_atomic(info->ring_pages[0], KM_USER0);
+ ring = kmap_atomic(info->ring_pages[0]);
ring->nr = nr_events; /* user copy */
ring->id = ctx->user_id;
ring->head = ring->tail = 0;
@@ -164,7 +164,7 @@ static int aio_setup_ring(struct kioctx
ring->compat_features = AIO_RING_COMPAT_FEATURES;
ring->incompat_features = AIO_RING_INCOMPAT_FEATURES;
ring->header_length = sizeof(struct aio_ring);
- kunmap_atomic(ring, KM_USER0);
+ kunmap_atomic(ring);
return 0;
}
@@ -177,19 +177,19 @@ static int aio_setup_ring(struct kioctx
#define AIO_EVENTS_FIRST_PAGE ((PAGE_SIZE - sizeof(struct aio_ring)) / sizeof(struct io_event))
#define AIO_EVENTS_OFFSET (AIO_EVENTS_PER_PAGE - AIO_EVENTS_FIRST_PAGE)
-#define aio_ring_event(info, nr, km) ({ \
+#define aio_ring_event(info, nr) ({ \
unsigned pos = (nr) + AIO_EVENTS_OFFSET; \
struct io_event *__event; \
__event = kmap_atomic( \
- (info)->ring_pages[pos / AIO_EVENTS_PER_PAGE], km); \
+ (info)->ring_pages[pos / AIO_EVENTS_PER_PAGE]); \
__event += pos % AIO_EVENTS_PER_PAGE; \
__event; \
})
-#define put_aio_ring_event(event, km) do { \
+#define put_aio_ring_event(event) do { \
struct io_event *__event = (event); \
(void)__event; \
- kunmap_atomic((void *)((unsigned long)__event & PAGE_MASK), km); \
+ kunmap_atomic((void *)((unsigned long)__event & PAGE_MASK)); \
} while(0)
static void ctx_rcu_free(struct rcu_head *head)
@@ -451,13 +451,13 @@ static struct kiocb *__aio_get_req(struc
* accept an event from this io.
*/
spin_lock_irq(&ctx->ctx_lock);
- ring = kmap_atomic(ctx->ring_info.ring_pages[0], KM_USER0);
+ ring = kmap_atomic(ctx->ring_info.ring_pages[0]);
if (ctx->reqs_active < aio_ring_avail(&ctx->ring_info, ring)) {
list_add(&req->ki_list, &ctx->active_reqs);
ctx->reqs_active++;
okay = 1;
}
- kunmap_atomic(ring, KM_USER0);
+ kunmap_atomic(ring);
spin_unlock_irq(&ctx->ctx_lock);
if (!okay) {
@@ -940,10 +940,10 @@ int aio_complete(struct kiocb *iocb, lon
if (kiocbIsCancelled(iocb))
goto put_rq;
- ring = kmap_atomic(info->ring_pages[0], KM_IRQ1);
+ ring = kmap_atomic(info->ring_pages[0]);
tail = info->tail;
- event = aio_ring_event(info, tail, KM_IRQ0);
+ event = aio_ring_event(info, tail);
if (++tail >= info->nr)
tail = 0;
@@ -964,8 +964,8 @@ int aio_complete(struct kiocb *iocb, lon
info->tail = tail;
ring->tail = tail;
- put_aio_ring_event(event, KM_IRQ0);
- kunmap_atomic(ring, KM_IRQ1);
+ put_aio_ring_event(event);
+ kunmap_atomic(ring);
pr_debug("added to ring %p at [%lu]\n", iocb, tail);
@@ -1010,7 +1010,7 @@ static int aio_read_evt(struct kioctx *i
unsigned long head;
int ret = 0;
- ring = kmap_atomic(info->ring_pages[0], KM_USER0);
+ ring = kmap_atomic(info->ring_pages[0]);
dprintk("in aio_read_evt h%lu t%lu m%lu\n",
(unsigned long)ring->head, (unsigned long)ring->tail,
(unsigned long)ring->nr);
@@ -1022,18 +1022,18 @@ static int aio_read_evt(struct kioctx *i
head = ring->head % info->nr;
if (head != ring->tail) {
- struct io_event *evp = aio_ring_event(info, head, KM_USER1);
+ struct io_event *evp = aio_ring_event(info, head);
*ent = *evp;
head = (head + 1) % info->nr;
smp_mb(); /* finish reading the event before updatng the head */
ring->head = head;
ret = 1;
- put_aio_ring_event(evp, KM_USER1);
+ put_aio_ring_event(evp);
}
spin_unlock(&info->ring_lock);
out:
- kunmap_atomic(ring, KM_USER0);
+ kunmap_atomic(ring);
dprintk("leaving aio_read_evt: %d h%lu t%lu\n", ret,
(unsigned long)ring->head, (unsigned long)ring->tail);
return ret;
Index: linux-2.6/fs/bio-integrity.c
===================================================================
--- linux-2.6.orig/fs/bio-integrity.c
+++ linux-2.6/fs/bio-integrity.c
@@ -354,7 +354,7 @@ static void bio_integrity_generate(struc
bix.sector_size = bi->sector_size;
bio_for_each_segment(bv, bio, i) {
- void *kaddr = kmap_atomic(bv->bv_page, KM_USER0);
+ void *kaddr = kmap_atomic(bv->bv_page);
bix.data_buf = kaddr + bv->bv_offset;
bix.data_size = bv->bv_len;
bix.prot_buf = prot_buf;
@@ -368,7 +368,7 @@ static void bio_integrity_generate(struc
total += sectors * bi->tuple_size;
BUG_ON(total > bio->bi_integrity->bip_size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
}
@@ -495,7 +495,7 @@ static int bio_integrity_verify(struct b
bix.sector_size = bi->sector_size;
bio_for_each_segment(bv, bio, i) {
- void *kaddr = kmap_atomic(bv->bv_page, KM_USER0);
+ void *kaddr = kmap_atomic(bv->bv_page);
bix.data_buf = kaddr + bv->bv_offset;
bix.data_size = bv->bv_len;
bix.prot_buf = prot_buf;
@@ -504,7 +504,7 @@ static int bio_integrity_verify(struct b
ret = bi->verify_fn(&bix);
if (ret) {
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
return ret;
}
@@ -514,7 +514,7 @@ static int bio_integrity_verify(struct b
total += sectors * bi->tuple_size;
BUG_ON(total > bio->bi_integrity->bip_size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
return ret;
Index: linux-2.6/fs/btrfs/compression.c
===================================================================
--- linux-2.6.orig/fs/btrfs/compression.c
+++ linux-2.6/fs/btrfs/compression.c
@@ -129,10 +129,10 @@ static int check_compressed_csum(struct
page = cb->compressed_pages[i];
csum = ~(u32)0;
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
csum = btrfs_csum_data(root, kaddr, csum, PAGE_CACHE_SIZE);
btrfs_csum_final(csum, (char *)&csum);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (csum != *cb_sum) {
printk(KERN_INFO "btrfs csum failed ino %lu "
@@ -529,10 +529,10 @@ static noinline int add_ra_bio_pages(str
if (zero_offset) {
int zeros;
zeros = PAGE_CACHE_SIZE - zero_offset;
- userpage = kmap_atomic(page, KM_USER0);
+ userpage = kmap_atomic(page);
memset(userpage + zero_offset, 0, zeros);
flush_dcache_page(page);
- kunmap_atomic(userpage, KM_USER0);
+ kunmap_atomic(userpage);
}
}
Index: linux-2.6/fs/btrfs/ctree.c
===================================================================
--- linux-2.6.orig/fs/btrfs/ctree.c
+++ linux-2.6/fs/btrfs/ctree.c
@@ -875,14 +875,14 @@ static noinline int generic_bin_search(s
(offset + sizeof(struct btrfs_disk_key)) >
map_start + map_len) {
if (map_token) {
- unmap_extent_buffer(eb, map_token, KM_USER0);
+ unmap_extent_buffer(eb, map_token);
map_token = NULL;
}
err = map_private_extent_buffer(eb, offset,
sizeof(struct btrfs_disk_key),
&map_token, &kaddr,
- &map_start, &map_len, KM_USER0);
+ &map_start, &map_len);
if (!err) {
tmp = (struct btrfs_disk_key *)(kaddr + offset -
@@ -906,13 +906,13 @@ static noinline int generic_bin_search(s
else {
*slot = mid;
if (map_token)
- unmap_extent_buffer(eb, map_token, KM_USER0);
+ unmap_extent_buffer(eb, map_token);
return 0;
}
}
*slot = low;
if (map_token)
- unmap_extent_buffer(eb, map_token, KM_USER0);
+ unmap_extent_buffer(eb, map_token);
return 1;
}
@@ -2348,7 +2348,7 @@ static noinline int __push_leaf_right(st
i--;
}
if (left->map_token) {
- unmap_extent_buffer(left, left->map_token, KM_USER1);
+ unmap_extent_buffer(left, left->map_token);
left->map_token = NULL;
}
@@ -2404,7 +2404,7 @@ static noinline int __push_leaf_right(st
}
if (right->map_token) {
- unmap_extent_buffer(right, right->map_token, KM_USER1);
+ unmap_extent_buffer(right, right->map_token);
right->map_token = NULL;
}
left_nritems -= push_items;
@@ -2561,7 +2561,7 @@ static noinline int __push_leaf_left(str
}
if (right->map_token) {
- unmap_extent_buffer(right, right->map_token, KM_USER1);
+ unmap_extent_buffer(right, right->map_token);
right->map_token = NULL;
}
@@ -2608,7 +2608,7 @@ static noinline int __push_leaf_left(str
}
btrfs_set_header_nritems(left, old_left_nritems + push_items);
if (left->map_token) {
- unmap_extent_buffer(left, left->map_token, KM_USER1);
+ unmap_extent_buffer(left, left->map_token);
left->map_token = NULL;
}
@@ -2650,7 +2650,7 @@ static noinline int __push_leaf_left(str
btrfs_set_item_offset(right, item, push_space);
}
if (right->map_token) {
- unmap_extent_buffer(right, right->map_token, KM_USER1);
+ unmap_extent_buffer(right, right->map_token);
right->map_token = NULL;
}
@@ -2798,7 +2798,7 @@ static noinline int copy_for_split(struc
}
if (right->map_token) {
- unmap_extent_buffer(right, right->map_token, KM_USER1);
+ unmap_extent_buffer(right, right->map_token);
right->map_token = NULL;
}
@@ -3184,7 +3184,7 @@ int btrfs_truncate_item(struct btrfs_tra
}
if (leaf->map_token) {
- unmap_extent_buffer(leaf, leaf->map_token, KM_USER1);
+ unmap_extent_buffer(leaf, leaf->map_token);
leaf->map_token = NULL;
}
@@ -3300,7 +3300,7 @@ int btrfs_extend_item(struct btrfs_trans
}
if (leaf->map_token) {
- unmap_extent_buffer(leaf, leaf->map_token, KM_USER1);
+ unmap_extent_buffer(leaf, leaf->map_token);
leaf->map_token = NULL;
}
@@ -3423,7 +3423,7 @@ int btrfs_insert_some_items(struct btrfs
btrfs_set_item_offset(leaf, item, ioff - total_data);
}
if (leaf->map_token) {
- unmap_extent_buffer(leaf, leaf->map_token, KM_USER1);
+ unmap_extent_buffer(leaf, leaf->map_token);
leaf->map_token = NULL;
}
@@ -3538,7 +3538,7 @@ setup_items_for_insert(struct btrfs_tran
btrfs_set_item_offset(leaf, item, ioff - total_data);
}
if (leaf->map_token) {
- unmap_extent_buffer(leaf, leaf->map_token, KM_USER1);
+ unmap_extent_buffer(leaf, leaf->map_token);
leaf->map_token = NULL;
}
@@ -3766,7 +3766,7 @@ int btrfs_del_items(struct btrfs_trans_h
}
if (leaf->map_token) {
- unmap_extent_buffer(leaf, leaf->map_token, KM_USER1);
+ unmap_extent_buffer(leaf, leaf->map_token);
leaf->map_token = NULL;
}
Index: linux-2.6/fs/btrfs/ctree.h
===================================================================
--- linux-2.6.orig/fs/btrfs/ctree.h
+++ linux-2.6/fs/btrfs/ctree.h
@@ -1195,17 +1195,17 @@ void btrfs_set_##name(struct extent_buff
#define BTRFS_SETGET_HEADER_FUNCS(name, type, member, bits) \
static inline u##bits btrfs_##name(struct extent_buffer *eb) \
{ \
- type *p = kmap_atomic(eb->first_page, KM_USER0); \
+ type *p = kmap_atomic(eb->first_page); \
u##bits res = le##bits##_to_cpu(p->member); \
- kunmap_atomic(p, KM_USER0); \
+ kunmap_atomic(p); \
return res; \
} \
static inline void btrfs_set_##name(struct extent_buffer *eb, \
u##bits val) \
{ \
- type *p = kmap_atomic(eb->first_page, KM_USER0); \
+ type *p = kmap_atomic(eb->first_page); \
p->member = cpu_to_le##bits(val); \
- kunmap_atomic(p, KM_USER0); \
+ kunmap_atomic(p); \
}
#define BTRFS_SETGET_STACK_FUNCS(name, type, member, bits) \
Index: linux-2.6/fs/btrfs/disk-io.c
===================================================================
--- linux-2.6.orig/fs/btrfs/disk-io.c
+++ linux-2.6/fs/btrfs/disk-io.c
@@ -207,7 +207,7 @@ static int csum_tree_block(struct btrfs_
while (len > 0) {
err = map_private_extent_buffer(buf, offset, 32,
&map_token, &kaddr,
- &map_start, &map_len, KM_USER0);
+ &map_start, &map_len);
if (err)
return 1;
cur_len = min(len, map_len - (offset - map_start));
@@ -215,7 +215,7 @@ static int csum_tree_block(struct btrfs_
crc, cur_len);
len -= cur_len;
offset += cur_len;
- unmap_extent_buffer(buf, map_token, KM_USER0);
+ unmap_extent_buffer(buf, map_token);
}
if (csum_size > sizeof(inline_result)) {
result = kzalloc(csum_size * sizeof(char), GFP_NOFS);
Index: linux-2.6/fs/btrfs/extent_io.c
===================================================================
--- linux-2.6.orig/fs/btrfs/extent_io.c
+++ linux-2.6/fs/btrfs/extent_io.c
@@ -2023,20 +2023,20 @@ static int __extent_read_full_page(struc
if (zero_offset) {
iosize = PAGE_CACHE_SIZE - zero_offset;
- userpage = kmap_atomic(page, KM_USER0);
+ userpage = kmap_atomic(page);
memset(userpage + zero_offset, 0, iosize);
flush_dcache_page(page);
- kunmap_atomic(userpage, KM_USER0);
+ kunmap_atomic(userpage);
}
}
while (cur <= end) {
if (cur >= last_byte) {
char *userpage;
iosize = PAGE_CACHE_SIZE - page_offset;
- userpage = kmap_atomic(page, KM_USER0);
+ userpage = kmap_atomic(page);
memset(userpage + page_offset, 0, iosize);
flush_dcache_page(page);
- kunmap_atomic(userpage, KM_USER0);
+ kunmap_atomic(userpage);
set_extent_uptodate(tree, cur, cur + iosize - 1,
GFP_NOFS);
unlock_extent(tree, cur, cur + iosize - 1, GFP_NOFS);
@@ -2076,10 +2076,10 @@ static int __extent_read_full_page(struc
/* we've found a hole, just zero and go on */
if (block_start == EXTENT_MAP_HOLE) {
char *userpage;
- userpage = kmap_atomic(page, KM_USER0);
+ userpage = kmap_atomic(page);
memset(userpage + page_offset, 0, iosize);
flush_dcache_page(page);
- kunmap_atomic(userpage, KM_USER0);
+ kunmap_atomic(userpage);
set_extent_uptodate(tree, cur, cur + iosize - 1,
GFP_NOFS);
@@ -2218,10 +2218,10 @@ static int __extent_writepage(struct pag
if (page->index == end_index) {
char *userpage;
- userpage = kmap_atomic(page, KM_USER0);
+ userpage = kmap_atomic(page);
memset(userpage + pg_offset, 0,
PAGE_CACHE_SIZE - pg_offset);
- kunmap_atomic(userpage, KM_USER0);
+ kunmap_atomic(userpage);
flush_dcache_page(page);
}
pg_offset = 0;
@@ -2781,14 +2781,14 @@ int extent_prepare_write(struct extent_i
(block_off_end > to || block_off_start < from)) {
void *kaddr;
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
if (block_off_end > to)
memset(kaddr + to, 0, block_off_end - to);
if (block_off_start < from)
memset(kaddr + block_off_start, 0,
from - block_off_start);
flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
if ((em->block_start != EXTENT_MAP_HOLE &&
em->block_start != EXTENT_MAP_INLINE) &&
@@ -3479,9 +3479,9 @@ void read_extent_buffer(struct extent_bu
page = extent_buffer_page(eb, i);
cur = min(len, (PAGE_CACHE_SIZE - offset));
- kaddr = kmap_atomic(page, KM_USER1);
+ kaddr = kmap_atomic(page);
memcpy(dst, kaddr + offset, cur);
- kunmap_atomic(kaddr, KM_USER1);
+ kunmap_atomic(kaddr);
dst += cur;
len -= cur;
@@ -3581,9 +3581,9 @@ int memcmp_extent_buffer(struct extent_b
cur = min(len, (PAGE_CACHE_SIZE - offset));
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
ret = memcmp(ptr, kaddr + offset, cur);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (ret)
break;
@@ -3616,9 +3616,9 @@ void write_extent_buffer(struct extent_b
WARN_ON(!PageUptodate(page));
cur = min(len, PAGE_CACHE_SIZE - offset);
- kaddr = kmap_atomic(page, KM_USER1);
+ kaddr = kmap_atomic(page);
memcpy(kaddr + offset, src, cur);
- kunmap_atomic(kaddr, KM_USER1);
+ kunmap_atomic(kaddr);
src += cur;
len -= cur;
@@ -3647,9 +3647,9 @@ void memset_extent_buffer(struct extent_
WARN_ON(!PageUptodate(page));
cur = min(len, PAGE_CACHE_SIZE - offset);
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memset(kaddr + offset, c, cur);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
len -= cur;
offset = 0;
@@ -3680,9 +3680,9 @@ void copy_extent_buffer(struct extent_bu
cur = min(len, (unsigned long)(PAGE_CACHE_SIZE - offset));
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
read_extent_buffer(src, kaddr + offset, src_offset, cur);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
src_offset += cur;
len -= cur;
@@ -3695,38 +3695,38 @@ static void move_pages(struct page *dst_
unsigned long dst_off, unsigned long src_off,
unsigned long len)
{
- char *dst_kaddr = kmap_atomic(dst_page, KM_USER0);
+ char *dst_kaddr = kmap_atomic(dst_page);
if (dst_page == src_page) {
memmove(dst_kaddr + dst_off, dst_kaddr + src_off, len);
} else {
- char *src_kaddr = kmap_atomic(src_page, KM_USER1);
+ char *src_kaddr = kmap_atomic(src_page);
char *p = dst_kaddr + dst_off + len;
char *s = src_kaddr + src_off + len;
while (len--)
*--p = *--s;
- kunmap_atomic(src_kaddr, KM_USER1);
+ kunmap_atomic(src_kaddr);
}
- kunmap_atomic(dst_kaddr, KM_USER0);
+ kunmap_atomic(dst_kaddr);
}
static void copy_pages(struct page *dst_page, struct page *src_page,
unsigned long dst_off, unsigned long src_off,
unsigned long len)
{
- char *dst_kaddr = kmap_atomic(dst_page, KM_USER0);
+ char *dst_kaddr = kmap_atomic(dst_page);
char *src_kaddr;
if (dst_page != src_page)
- src_kaddr = kmap_atomic(src_page, KM_USER1);
+ src_kaddr = kmap_atomic(src_page);
else
src_kaddr = dst_kaddr;
memcpy(dst_kaddr + dst_off, src_kaddr + src_off, len);
- kunmap_atomic(dst_kaddr, KM_USER0);
+ kunmap_atomic(dst_kaddr);
if (dst_page != src_page)
- kunmap_atomic(src_kaddr, KM_USER1);
+ kunmap_atomic(src_kaddr);
}
void memcpy_extent_buffer(struct extent_buffer *dst, unsigned long dst_offset,
Index: linux-2.6/fs/btrfs/file-item.c
===================================================================
--- linux-2.6.orig/fs/btrfs/file-item.c
+++ linux-2.6/fs/btrfs/file-item.c
@@ -409,13 +409,13 @@ int btrfs_csum_one_bio(struct btrfs_root
sums->bytenr = ordered->start;
}
- data = kmap_atomic(bvec->bv_page, KM_USER0);
+ data = kmap_atomic(bvec->bv_page);
sector_sum->sum = ~(u32)0;
sector_sum->sum = btrfs_csum_data(root,
data + bvec->bv_offset,
sector_sum->sum,
bvec->bv_len);
- kunmap_atomic(data, KM_USER0);
+ kunmap_atomic(data);
btrfs_csum_final(sector_sum->sum,
(char *)§or_sum->sum);
sector_sum->bytenr = disk_bytenr;
@@ -787,12 +787,12 @@ next_sector:
int err;
if (eb_token)
- unmap_extent_buffer(leaf, eb_token, KM_USER1);
+ unmap_extent_buffer(leaf, eb_token);
eb_token = NULL;
err = map_private_extent_buffer(leaf, (unsigned long)item,
csum_size,
&eb_token, &eb_map,
- &map_start, &map_len, KM_USER1);
+ &map_start, &map_len);
if (err)
eb_token = NULL;
}
@@ -816,7 +816,7 @@ next_sector:
}
}
if (eb_token) {
- unmap_extent_buffer(leaf, eb_token, KM_USER1);
+ unmap_extent_buffer(leaf, eb_token);
eb_token = NULL;
}
btrfs_mark_buffer_dirty(path->nodes[0]);
Index: linux-2.6/fs/btrfs/inode.c
===================================================================
--- linux-2.6.orig/fs/btrfs/inode.c
+++ linux-2.6/fs/btrfs/inode.c
@@ -165,9 +165,9 @@ static noinline int insert_inline_extent
cur_size = min_t(unsigned long, compressed_size,
PAGE_CACHE_SIZE);
- kaddr = kmap_atomic(cpage, KM_USER0);
+ kaddr = kmap_atomic(cpage);
write_extent_buffer(leaf, kaddr, ptr, cur_size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
i++;
ptr += cur_size;
@@ -179,10 +179,10 @@ static noinline int insert_inline_extent
page = find_get_page(inode->i_mapping,
start >> PAGE_CACHE_SHIFT);
btrfs_set_file_extent_compression(leaf, ei, 0);
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
offset = start & (PAGE_CACHE_SIZE - 1);
write_extent_buffer(leaf, kaddr + offset, ptr, size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
page_cache_release(page);
}
btrfs_mark_buffer_dirty(leaf);
@@ -390,10 +390,10 @@ again:
* sending it down to disk
*/
if (offset) {
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memset(kaddr + offset, 0,
PAGE_CACHE_SIZE - offset);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
will_compress = 1;
}
@@ -1915,7 +1915,7 @@ static int btrfs_readpage_end_io_hook(st
} else {
ret = get_state_private(io_tree, start, &private);
}
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
if (ret)
goto zeroit;
@@ -1924,7 +1924,7 @@ static int btrfs_readpage_end_io_hook(st
if (csum != private)
goto zeroit;
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
good:
/* if the io failure tree for this inode is non-empty,
* check to see if we've recovered from a failed IO
@@ -1941,7 +1941,7 @@ zeroit:
}
memset(kaddr + offset, 1, end - start + 1);
flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (private == 0)
return 0;
return -EIO;
@@ -4401,12 +4401,12 @@ static noinline int uncompress_inline(st
ret = btrfs_zlib_decompress(tmp, page, extent_offset,
inline_size, max_size);
if (ret) {
- char *kaddr = kmap_atomic(page, KM_USER0);
+ char *kaddr = kmap_atomic(page);
unsigned long copy_size = min_t(u64,
PAGE_CACHE_SIZE - pg_offset,
max_size - extent_offset);
memset(kaddr + pg_offset, 0, copy_size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
kfree(tmp);
return 0;
Index: linux-2.6/fs/btrfs/struct-funcs.c
===================================================================
--- linux-2.6.orig/fs/btrfs/struct-funcs.c
+++ linux-2.6/fs/btrfs/struct-funcs.c
@@ -68,7 +68,7 @@ u##bits btrfs_##name(struct extent_buffe
err = map_extent_buffer(eb, offset, \
sizeof(((type *)0)->member), \
&map_token, &kaddr, \
- &map_start, &map_len, KM_USER1); \
+ &map_start, &map_len); \
if (err) { \
__le##bits leres; \
read_eb_member(eb, s, type, member, &leres); \
@@ -77,7 +77,7 @@ u##bits btrfs_##name(struct extent_buffe
p = (type *)(kaddr + part_offset - map_start); \
res = le##bits##_to_cpu(p->member); \
if (unmap_on_exit) \
- unmap_extent_buffer(eb, map_token, KM_USER1); \
+ unmap_extent_buffer(eb, map_token); \
return res; \
} \
} \
@@ -105,7 +105,7 @@ void btrfs_set_##name(struct extent_buff
err = map_extent_buffer(eb, offset, \
sizeof(((type *)0)->member), \
&map_token, &kaddr, \
- &map_start, &map_len, KM_USER1); \
+ &map_start, &map_len); \
if (err) { \
__le##bits val2; \
val2 = cpu_to_le##bits(val); \
@@ -115,7 +115,7 @@ void btrfs_set_##name(struct extent_buff
p = (type *)(kaddr + part_offset - map_start); \
p->member = cpu_to_le##bits(val); \
if (unmap_on_exit) \
- unmap_extent_buffer(eb, map_token, KM_USER1); \
+ unmap_extent_buffer(eb, map_token); \
} \
}
@@ -131,7 +131,7 @@ void btrfs_node_key(struct extent_buffer
sizeof(*disk_key));
return;
} else if (eb->map_token) {
- unmap_extent_buffer(eb, eb->map_token, KM_USER1);
+ unmap_extent_buffer(eb, eb->map_token);
eb->map_token = NULL;
}
read_eb_member(eb, (struct btrfs_key_ptr *)ptr,
Index: linux-2.6/fs/btrfs/zlib.c
===================================================================
--- linux-2.6.orig/fs/btrfs/zlib.c
+++ linux-2.6/fs/btrfs/zlib.c
@@ -448,10 +448,10 @@ int btrfs_zlib_decompress_biovec(struct
bytes = min(PAGE_CACHE_SIZE - pg_offset,
PAGE_CACHE_SIZE - buf_offset);
bytes = min(bytes, working_bytes);
- kaddr = kmap_atomic(page_out, KM_USER0);
+ kaddr = kmap_atomic(page_out);
memcpy(kaddr + pg_offset, workspace->buf + buf_offset,
bytes);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
flush_dcache_page(page_out);
pg_offset += bytes;
@@ -604,9 +604,9 @@ int btrfs_zlib_decompress(unsigned char
PAGE_CACHE_SIZE - buf_offset);
bytes = min(bytes, bytes_left);
- kaddr = kmap_atomic(dest_page, KM_USER0);
+ kaddr = kmap_atomic(dest_page);
memcpy(kaddr + pg_offset, workspace->buf + buf_offset, bytes);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
pg_offset += bytes;
bytes_left -= bytes;
Index: linux-2.6/fs/cifs/file.c
===================================================================
--- linux-2.6.orig/fs/cifs/file.c
+++ linux-2.6/fs/cifs/file.c
@@ -1927,7 +1927,7 @@ static void cifs_copy_cache_pages(struct
continue;
}
- target = kmap_atomic(page, KM_USER0);
+ target = kmap_atomic(page);
if (PAGE_CACHE_SIZE > bytes_read) {
memcpy(target, data, bytes_read);
@@ -1939,7 +1939,7 @@ static void cifs_copy_cache_pages(struct
memcpy(target, data, PAGE_CACHE_SIZE);
bytes_read -= PAGE_CACHE_SIZE;
}
- kunmap_atomic(target, KM_USER0);
+ kunmap_atomic(target);
flush_dcache_page(page);
SetPageUptodate(page);
Index: linux-2.6/fs/ecryptfs/mmap.c
===================================================================
--- linux-2.6.orig/fs/ecryptfs/mmap.c
+++ linux-2.6/fs/ecryptfs/mmap.c
@@ -142,7 +142,7 @@ ecryptfs_copy_up_encrypted_with_header(s
/* This is a header extent */
char *page_virt;
- page_virt = kmap_atomic(page, KM_USER0);
+ page_virt = kmap_atomic(page);
memset(page_virt, 0, PAGE_CACHE_SIZE);
/* TODO: Support more than one header extent */
if (view_extent_num == 0) {
@@ -150,7 +150,7 @@ ecryptfs_copy_up_encrypted_with_header(s
page_virt, page->mapping->host);
set_header_info(page_virt, crypt_stat);
}
- kunmap_atomic(page_virt, KM_USER0);
+ kunmap_atomic(page_virt);
flush_dcache_page(page);
if (rc) {
printk(KERN_ERR "%s: Error reading xattr "
Index: linux-2.6/fs/ecryptfs/read_write.c
===================================================================
--- linux-2.6.orig/fs/ecryptfs/read_write.c
+++ linux-2.6/fs/ecryptfs/read_write.c
@@ -155,7 +155,7 @@ int ecryptfs_write(struct file *ecryptfs
ecryptfs_page_idx, rc);
goto out;
}
- ecryptfs_page_virt = kmap_atomic(ecryptfs_page, KM_USER0);
+ ecryptfs_page_virt = kmap_atomic(ecryptfs_page);
/*
* pos: where we're now writing, offset: where the request was
@@ -178,7 +178,7 @@ int ecryptfs_write(struct file *ecryptfs
(data + data_offset), num_bytes);
data_offset += num_bytes;
}
- kunmap_atomic(ecryptfs_page_virt, KM_USER0);
+ kunmap_atomic(ecryptfs_page_virt);
flush_dcache_page(ecryptfs_page);
SetPageUptodate(ecryptfs_page);
unlock_page(ecryptfs_page);
@@ -337,11 +337,11 @@ int ecryptfs_read(char *data, loff_t off
ecryptfs_page_idx, rc);
goto out;
}
- ecryptfs_page_virt = kmap_atomic(ecryptfs_page, KM_USER0);
+ ecryptfs_page_virt = kmap_atomic(ecryptfs_page);
memcpy((data + data_offset),
((char *)ecryptfs_page_virt + start_offset_in_page),
num_bytes);
- kunmap_atomic(ecryptfs_page_virt, KM_USER0);
+ kunmap_atomic(ecryptfs_page_virt);
flush_dcache_page(ecryptfs_page);
SetPageUptodate(ecryptfs_page);
unlock_page(ecryptfs_page);
Index: linux-2.6/fs/exec.c
===================================================================
--- linux-2.6.orig/fs/exec.c
+++ linux-2.6/fs/exec.c
@@ -1177,13 +1177,13 @@ int remove_arg_zero(struct linux_binprm
ret = -EFAULT;
goto out;
}
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
for (; offset < PAGE_SIZE && kaddr[offset];
offset++, bprm->p++)
;
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
put_arg_page(page);
if (offset == PAGE_SIZE)
Index: linux-2.6/fs/exofs/dir.c
===================================================================
--- linux-2.6.orig/fs/exofs/dir.c
+++ linux-2.6/fs/exofs/dir.c
@@ -594,7 +594,7 @@ int exofs_make_empty(struct inode *inode
goto fail;
}
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
de = (struct exofs_dir_entry *)kaddr;
de->name_len = 1;
de->rec_len = cpu_to_le16(EXOFS_DIR_REC_LEN(1));
@@ -608,7 +608,7 @@ int exofs_make_empty(struct inode *inode
de->inode_no = cpu_to_le64(parent->i_ino);
memcpy(de->name, PARENT_DIR, sizeof(PARENT_DIR));
exofs_set_de_type(de, inode);
- kunmap_atomic(page, KM_USER0);
+ kunmap_atomic(page);
err = exofs_commit_chunk(page, 0, chunk_size);
fail:
page_cache_release(page);
Index: linux-2.6/fs/ext2/dir.c
===================================================================
--- linux-2.6.orig/fs/ext2/dir.c
+++ linux-2.6/fs/ext2/dir.c
@@ -637,7 +637,7 @@ int ext2_make_empty(struct inode *inode,
unlock_page(page);
goto fail;
}
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memset(kaddr, 0, chunk_size);
de = (struct ext2_dir_entry_2 *)kaddr;
de->name_len = 1;
@@ -652,7 +652,7 @@ int ext2_make_empty(struct inode *inode,
de->inode = cpu_to_le32(parent->i_ino);
memcpy (de->name, "..\0", 4);
ext2_set_de_type (de, inode);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
err = ext2_commit_chunk(page, 0, chunk_size);
fail:
page_cache_release(page);
Index: linux-2.6/fs/fuse/dev.c
===================================================================
--- linux-2.6.orig/fs/fuse/dev.c
+++ linux-2.6/fs/fuse/dev.c
@@ -523,7 +523,7 @@ static void fuse_copy_init(struct fuse_c
static void fuse_copy_finish(struct fuse_copy_state *cs)
{
if (cs->mapaddr) {
- kunmap_atomic(cs->mapaddr, KM_USER0);
+ kunmap_atomic(cs->mapaddr);
if (cs->write) {
flush_dcache_page(cs->pg);
set_page_dirty_lock(cs->pg);
@@ -559,7 +559,7 @@ static int fuse_copy_fill(struct fuse_co
return err;
BUG_ON(err != 1);
offset = cs->addr % PAGE_SIZE;
- cs->mapaddr = kmap_atomic(cs->pg, KM_USER0);
+ cs->mapaddr = kmap_atomic(cs->pg);
cs->buf = cs->mapaddr + offset;
cs->len = min(PAGE_SIZE - offset, cs->seglen);
cs->seglen -= cs->len;
@@ -593,9 +593,9 @@ static int fuse_copy_page(struct fuse_co
unsigned offset, unsigned count, int zeroing)
{
if (page && zeroing && count < PAGE_SIZE) {
- void *mapaddr = kmap_atomic(page, KM_USER1);
+ void *mapaddr = kmap_atomic(page);
memset(mapaddr, 0, PAGE_SIZE);
- kunmap_atomic(mapaddr, KM_USER1);
+ kunmap_atomic(mapaddr);
}
while (count) {
if (!cs->len) {
@@ -604,10 +604,10 @@ static int fuse_copy_page(struct fuse_co
return err;
}
if (page) {
- void *mapaddr = kmap_atomic(page, KM_USER1);
+ void *mapaddr = kmap_atomic(page);
void *buf = mapaddr + offset;
offset += fuse_copy_do(cs, &buf, &count);
- kunmap_atomic(mapaddr, KM_USER1);
+ kunmap_atomic(mapaddr);
} else
offset += fuse_copy_do(cs, NULL, &count);
}
Index: linux-2.6/fs/fuse/file.c
===================================================================
--- linux-2.6.orig/fs/fuse/file.c
+++ linux-2.6/fs/fuse/file.c
@@ -1791,9 +1791,9 @@ long fuse_do_ioctl(struct file *file, un
goto out;
/* okay, copy in iovs and retry */
- vaddr = kmap_atomic(pages[0], KM_USER0);
+ vaddr = kmap_atomic(pages[0]);
memcpy(page_address(iov_page), vaddr, transferred);
- kunmap_atomic(vaddr, KM_USER0);
+ kunmap_atomic(vaddr);
in_iov = page_address(iov_page);
out_iov = in_iov + in_iovs;
Index: linux-2.6/fs/gfs2/aops.c
===================================================================
--- linux-2.6.orig/fs/gfs2/aops.c
+++ linux-2.6/fs/gfs2/aops.c
@@ -448,11 +448,11 @@ static int stuffed_readpage(struct gfs2_
if (error)
return error;
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode),
ip->i_disksize);
memset(kaddr + ip->i_disksize, 0, PAGE_CACHE_SIZE - ip->i_disksize);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
flush_dcache_page(page);
brelse(dibh);
SetPageUptodate(page);
@@ -555,9 +555,9 @@ int gfs2_internal_read(struct gfs2_inode
page = read_cache_page(mapping, index, __gfs2_readpage, NULL);
if (IS_ERR(page))
return PTR_ERR(page);
- p = kmap_atomic(page, KM_USER0);
+ p = kmap_atomic(page);
memcpy(buf + copied, p + offset, amt);
- kunmap_atomic(p, KM_USER0);
+ kunmap_atomic(p);
mark_page_accessed(page);
page_cache_release(page);
copied += amt;
@@ -799,11 +799,11 @@ static int gfs2_stuffed_write_end(struct
struct gfs2_dinode *di = (struct gfs2_dinode *)dibh->b_data;
BUG_ON((pos + len) > (dibh->b_size - sizeof(struct gfs2_dinode)));
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memcpy(buf + pos, kaddr + pos, copied);
memset(kaddr + pos + copied, 0, len - copied);
flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (!PageUptodate(page))
SetPageUptodate(page);
Index: linux-2.6/fs/gfs2/lops.c
===================================================================
--- linux-2.6.orig/fs/gfs2/lops.c
+++ linux-2.6/fs/gfs2/lops.c
@@ -539,11 +539,11 @@ static void gfs2_check_magic(struct buff
__be32 *ptr;
clear_buffer_escaped(bh);
- kaddr = kmap_atomic(bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(bh->b_page);
ptr = kaddr + bh_offset(bh);
if (*ptr == cpu_to_be32(GFS2_MAGIC))
set_buffer_escaped(bh);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
static void gfs2_write_blocks(struct gfs2_sbd *sdp, struct buffer_head *bh,
@@ -580,10 +580,10 @@ static void gfs2_write_blocks(struct gfs
if (buffer_escaped(bd->bd_bh)) {
void *kaddr;
bh1 = gfs2_log_get_buf(sdp);
- kaddr = kmap_atomic(bd->bd_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(bd->bd_bh->b_page);
memcpy(bh1->b_data, kaddr + bh_offset(bd->bd_bh),
bh1->b_size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
*(__be32 *)bh1->b_data = 0;
clear_buffer_escaped(bd->bd_bh);
unlock_buffer(bd->bd_bh);
Index: linux-2.6/fs/gfs2/quota.c
===================================================================
--- linux-2.6.orig/fs/gfs2/quota.c
+++ linux-2.6/fs/gfs2/quota.c
@@ -699,14 +699,14 @@ static int gfs2_adjust_quota(struct gfs2
gfs2_trans_add_bh(ip->i_gl, bh, 0);
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
ptr = kaddr + offset;
gfs2_quota_in(&qp, ptr);
qp.qu_value += change;
value = qp.qu_value;
gfs2_quota_out(&qp, ptr);
flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
err = 0;
qd->qd_qb.qb_magic = cpu_to_be32(GFS2_MAGIC);
qd->qd_qb.qb_value = cpu_to_be64(value);
Index: linux-2.6/fs/jbd/journal.c
===================================================================
--- linux-2.6.orig/fs/jbd/journal.c
+++ linux-2.6/fs/jbd/journal.c
@@ -322,7 +322,7 @@ repeat:
new_offset = offset_in_page(jh2bh(jh_in)->b_data);
}
- mapped_data = kmap_atomic(new_page, KM_USER0);
+ mapped_data = kmap_atomic(new_page);
/*
* Check for escaping
*/
@@ -331,7 +331,7 @@ repeat:
need_copy_out = 1;
do_escape = 1;
}
- kunmap_atomic(mapped_data, KM_USER0);
+ kunmap_atomic(mapped_data);
/*
* Do we need to do a data copy?
@@ -348,9 +348,9 @@ repeat:
}
jh_in->b_frozen_data = tmp;
- mapped_data = kmap_atomic(new_page, KM_USER0);
+ mapped_data = kmap_atomic(new_page);
memcpy(tmp, mapped_data + new_offset, jh2bh(jh_in)->b_size);
- kunmap_atomic(mapped_data, KM_USER0);
+ kunmap_atomic(mapped_data);
new_page = virt_to_page(tmp);
new_offset = offset_in_page(tmp);
@@ -362,9 +362,9 @@ repeat:
* copying, we can finally do so.
*/
if (do_escape) {
- mapped_data = kmap_atomic(new_page, KM_USER0);
+ mapped_data = kmap_atomic(new_page);
*((unsigned int *)(mapped_data + new_offset)) = 0;
- kunmap_atomic(mapped_data, KM_USER0);
+ kunmap_atomic(mapped_data);
}
set_bh_page(new_bh, new_page, new_offset);
Index: linux-2.6/fs/jbd/transaction.c
===================================================================
--- linux-2.6.orig/fs/jbd/transaction.c
+++ linux-2.6/fs/jbd/transaction.c
@@ -714,9 +714,9 @@ done:
"Possible IO failure.\n");
page = jh2bh(jh)->b_page;
offset = ((unsigned long) jh2bh(jh)->b_data) & ~PAGE_MASK;
- source = kmap_atomic(page, KM_USER0);
+ source = kmap_atomic(page);
memcpy(jh->b_frozen_data, source+offset, jh2bh(jh)->b_size);
- kunmap_atomic(source, KM_USER0);
+ kunmap_atomic(source);
}
jbd_unlock_bh_state(bh);
Index: linux-2.6/fs/jbd2/commit.c
===================================================================
--- linux-2.6.orig/fs/jbd2/commit.c
+++ linux-2.6/fs/jbd2/commit.c
@@ -324,10 +324,10 @@ static __u32 jbd2_checksum_data(__u32 cr
char *addr;
__u32 checksum;
- addr = kmap_atomic(page, KM_USER0);
+ addr = kmap_atomic(page);
checksum = crc32_be(crc32_sum,
(void *)(addr + offset_in_page(bh->b_data)), bh->b_size);
- kunmap_atomic(addr, KM_USER0);
+ kunmap_atomic(addr);
return checksum;
}
Index: linux-2.6/fs/jbd2/journal.c
===================================================================
--- linux-2.6.orig/fs/jbd2/journal.c
+++ linux-2.6/fs/jbd2/journal.c
@@ -331,7 +331,7 @@ repeat:
triggers = jh_in->b_triggers;
}
- mapped_data = kmap_atomic(new_page, KM_USER0);
+ mapped_data = kmap_atomic(new_page);
/*
* Fire any commit trigger. Do this before checking for escaping,
* as the trigger may modify the magic offset. If a copy-out
@@ -348,7 +348,7 @@ repeat:
need_copy_out = 1;
do_escape = 1;
}
- kunmap_atomic(mapped_data, KM_USER0);
+ kunmap_atomic(mapped_data);
/*
* Do we need to do a data copy?
@@ -365,9 +365,9 @@ repeat:
}
jh_in->b_frozen_data = tmp;
- mapped_data = kmap_atomic(new_page, KM_USER0);
+ mapped_data = kmap_atomic(new_page);
memcpy(tmp, mapped_data + new_offset, jh2bh(jh_in)->b_size);
- kunmap_atomic(mapped_data, KM_USER0);
+ kunmap_atomic(mapped_data);
new_page = virt_to_page(tmp);
new_offset = offset_in_page(tmp);
@@ -386,9 +386,9 @@ repeat:
* copying, we can finally do so.
*/
if (do_escape) {
- mapped_data = kmap_atomic(new_page, KM_USER0);
+ mapped_data = kmap_atomic(new_page);
*((unsigned int *)(mapped_data + new_offset)) = 0;
- kunmap_atomic(mapped_data, KM_USER0);
+ kunmap_atomic(mapped_data);
}
set_bh_page(new_bh, new_page, new_offset);
Index: linux-2.6/fs/jbd2/transaction.c
===================================================================
--- linux-2.6.orig/fs/jbd2/transaction.c
+++ linux-2.6/fs/jbd2/transaction.c
@@ -724,9 +724,9 @@ done:
"Possible IO failure.\n");
page = jh2bh(jh)->b_page;
offset = ((unsigned long) jh2bh(jh)->b_data) & ~PAGE_MASK;
- source = kmap_atomic(page, KM_USER0);
+ source = kmap_atomic(page);
memcpy(jh->b_frozen_data, source+offset, jh2bh(jh)->b_size);
- kunmap_atomic(source, KM_USER0);
+ kunmap_atomic(source);
/*
* Now that the frozen data is saved off, we need to store
Index: linux-2.6/fs/libfs.c
===================================================================
--- linux-2.6.orig/fs/libfs.c
+++ linux-2.6/fs/libfs.c
@@ -396,10 +396,10 @@ int simple_write_end(struct file *file,
/* zero the stale part of the page if we did a short copy */
if (copied < len) {
- void *kaddr = kmap_atomic(page, KM_USER0);
+ void *kaddr = kmap_atomic(page);
memset(kaddr + from + copied, 0, len - copied);
flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
simple_commit_write(file, page, from, from+copied);
Index: linux-2.6/fs/minix/dir.c
===================================================================
--- linux-2.6.orig/fs/minix/dir.c
+++ linux-2.6/fs/minix/dir.c
@@ -347,7 +347,7 @@ int minix_make_empty(struct inode *inode
goto fail;
}
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memset(kaddr, 0, PAGE_CACHE_SIZE);
if (sbi->s_version == MINIX_V3) {
@@ -367,7 +367,7 @@ int minix_make_empty(struct inode *inode
de->inode = dir->i_ino;
strcpy(de->name, "..");
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
err = dir_commit_chunk(page, 0, 2 * sbi->s_dirsize);
fail:
Index: linux-2.6/fs/namei.c
===================================================================
--- linux-2.6.orig/fs/namei.c
+++ linux-2.6/fs/namei.c
@@ -2893,9 +2893,9 @@ retry:
if (err)
goto fail;
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memcpy(kaddr, symname, len-1);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
err = pagecache_write_end(NULL, mapping, 0, len-1, len-1,
page, fsdata);
Index: linux-2.6/fs/nfs/dir.c
===================================================================
--- linux-2.6.orig/fs/nfs/dir.c
+++ linux-2.6/fs/nfs/dir.c
@@ -1493,11 +1493,11 @@ static int nfs_symlink(struct inode *dir
if (!page)
return -ENOMEM;
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memcpy(kaddr, symname, pathlen);
if (pathlen < PAGE_SIZE)
memset(kaddr + pathlen, 0, PAGE_SIZE - pathlen);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
error = NFS_PROTO(dir)->symlink(dir, dentry, page, pathlen, &attr);
if (error != 0) {
Index: linux-2.6/fs/nfs/nfs2xdr.c
===================================================================
--- linux-2.6.orig/fs/nfs/nfs2xdr.c
+++ linux-2.6/fs/nfs/nfs2xdr.c
@@ -447,7 +447,7 @@ nfs_xdr_readdirres(struct rpc_rqst *req,
if (pglen > recvd)
pglen = recvd;
page = rcvbuf->pages;
- kaddr = p = kmap_atomic(*page, KM_USER0);
+ kaddr = p = kmap_atomic(*page);
end = (__be32 *)((char *)p + pglen);
entry = p;
@@ -481,7 +481,7 @@ nfs_xdr_readdirres(struct rpc_rqst *req,
entry[1] = 1;
}
out:
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
return nr;
short_pkt:
/*
@@ -626,9 +626,9 @@ nfs_xdr_readlinkres(struct rpc_rqst *req
}
/* NULL terminate the string we got */
- kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0);
+ kaddr = (char *)kmap_atomic(rcvbuf->pages[0]);
kaddr[len+rcvbuf->page_base] = '\0';
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
return 0;
}
Index: linux-2.6/fs/nfs/nfs3xdr.c
===================================================================
--- linux-2.6.orig/fs/nfs/nfs3xdr.c
+++ linux-2.6/fs/nfs/nfs3xdr.c
@@ -537,7 +537,7 @@ nfs3_xdr_readdirres(struct rpc_rqst *req
if (pglen > recvd)
pglen = recvd;
page = rcvbuf->pages;
- kaddr = p = kmap_atomic(*page, KM_USER0);
+ kaddr = p = kmap_atomic(*page);
end = (__be32 *)((char *)p + pglen);
entry = p;
@@ -595,7 +595,7 @@ nfs3_xdr_readdirres(struct rpc_rqst *req
entry[1] = 1;
}
out:
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
return nr;
short_pkt:
/*
@@ -859,9 +859,9 @@ nfs3_xdr_readlinkres(struct rpc_rqst *re
}
/* NULL terminate the string we got */
- kaddr = (char*)kmap_atomic(rcvbuf->pages[0], KM_USER0);
+ kaddr = (char*)kmap_atomic(rcvbuf->pages[0]);
kaddr[len+rcvbuf->page_base] = '\0';
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
return 0;
}
Index: linux-2.6/fs/nfs/nfs4proc.c
===================================================================
--- linux-2.6.orig/fs/nfs/nfs4proc.c
+++ linux-2.6/fs/nfs/nfs4proc.c
@@ -165,7 +165,7 @@ static void nfs4_setup_readdir(u64 cooki
* when talking to the server, we always send cookie 0
* instead of 1 or 2.
*/
- start = p = kmap_atomic(*readdir->pages, KM_USER0);
+ start = p = kmap_atomic(*readdir->pages);
if (cookie == 0) {
*p++ = xdr_one; /* next */
@@ -193,7 +193,7 @@ static void nfs4_setup_readdir(u64 cooki
readdir->pgbase = (char *)p - (char *)start;
readdir->count -= readdir->pgbase;
- kunmap_atomic(start, KM_USER0);
+ kunmap_atomic(start);
}
static int nfs4_wait_clnt_recover(struct nfs_client *clp)
Index: linux-2.6/fs/nfs/nfs4xdr.c
===================================================================
--- linux-2.6.orig/fs/nfs/nfs4xdr.c
+++ linux-2.6/fs/nfs/nfs4xdr.c
@@ -4098,7 +4098,7 @@ static int decode_readdir(struct xdr_str
xdr_read_pages(xdr, pglen);
BUG_ON(pglen + readdir->pgbase > PAGE_CACHE_SIZE);
- kaddr = p = kmap_atomic(page, KM_USER0);
+ kaddr = p = kmap_atomic(page);
end = p + ((pglen + readdir->pgbase) >> 2);
entry = p;
@@ -4143,7 +4143,7 @@ static int decode_readdir(struct xdr_str
entry[1] = 1;
}
out:
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
return 0;
short_pkt:
/*
@@ -4160,7 +4160,7 @@ short_pkt:
if (nr)
goto out;
err_unmap:
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
return -errno_NFSERR_IO;
}
@@ -4202,9 +4202,9 @@ static int decode_readlink(struct xdr_st
* and and null-terminate the text (the VFS expects
* null-termination).
*/
- kaddr = (char *)kmap_atomic(rcvbuf->pages[0], KM_USER0);
+ kaddr = (char *)kmap_atomic(rcvbuf->pages[0]);
kaddr[len+rcvbuf->page_base] = '\0';
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
return 0;
out_overflow:
print_overflow_msg(__func__, xdr);
Index: linux-2.6/fs/nilfs2/cpfile.c
===================================================================
--- linux-2.6.orig/fs/nilfs2/cpfile.c
+++ linux-2.6/fs/nilfs2/cpfile.c
@@ -218,11 +218,11 @@ int nilfs_cpfile_get_checkpoint(struct i
kaddr, 1);
nilfs_mdt_mark_buffer_dirty(cp_bh);
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(header_bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, header_bh,
kaddr);
le64_add_cpu(&header->ch_ncheckpoints, 1);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
nilfs_mdt_mark_buffer_dirty(header_bh);
nilfs_mdt_mark_dirty(cpfile);
}
@@ -313,7 +313,7 @@ int nilfs_cpfile_delete_checkpoints(stru
continue;
}
- kaddr = kmap_atomic(cp_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(
cpfile, cno, cp_bh, kaddr);
nicps = 0;
@@ -332,7 +332,7 @@ int nilfs_cpfile_delete_checkpoints(stru
(count = nilfs_cpfile_block_sub_valid_checkpoints(
cpfile, cp_bh, kaddr, nicps)) == 0) {
/* make hole */
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(cp_bh);
ret = nilfs_cpfile_delete_checkpoint_block(
cpfile, cno);
@@ -344,18 +344,18 @@ int nilfs_cpfile_delete_checkpoints(stru
}
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(cp_bh);
}
if (tnicps > 0) {
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(header_bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, header_bh,
kaddr);
le64_add_cpu(&header->ch_ncheckpoints, -(u64)tnicps);
nilfs_mdt_mark_buffer_dirty(header_bh);
nilfs_mdt_mark_dirty(cpfile);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
brelse(header_bh);
@@ -403,7 +403,7 @@ static ssize_t nilfs_cpfile_do_get_cpinf
continue; /* skip hole */
}
- kaddr = kmap_atomic(bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, bh, kaddr);
for (i = 0; i < ncps && n < nci; i++, cp = (void *)cp + cpsz) {
if (!nilfs_checkpoint_invalid(cp)) {
@@ -413,7 +413,7 @@ static ssize_t nilfs_cpfile_do_get_cpinf
n++;
}
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(bh);
}
@@ -446,10 +446,10 @@ static ssize_t nilfs_cpfile_do_get_ssinf
ret = nilfs_cpfile_get_header_block(cpfile, &bh);
if (ret < 0)
goto out;
- kaddr = kmap_atomic(bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, bh, kaddr);
curr = le64_to_cpu(header->ch_snapshot_list.ssl_next);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(bh);
if (curr == 0) {
ret = 0;
@@ -467,7 +467,7 @@ static ssize_t nilfs_cpfile_do_get_ssinf
ret = 0; /* No snapshots (started from a hole block) */
goto out;
}
- kaddr = kmap_atomic(bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(bh->b_page);
while (n < nci) {
cp = nilfs_cpfile_block_get_checkpoint(cpfile, curr, bh, kaddr);
curr = ~(__u64)0; /* Terminator */
@@ -483,7 +483,7 @@ static ssize_t nilfs_cpfile_do_get_ssinf
next_blkoff = nilfs_cpfile_get_blkoff(cpfile, next);
if (curr_blkoff != next_blkoff) {
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(bh);
ret = nilfs_cpfile_get_checkpoint_block(cpfile, next,
0, &bh);
@@ -491,12 +491,12 @@ static ssize_t nilfs_cpfile_do_get_ssinf
WARN_ON(ret == -ENOENT);
goto out;
}
- kaddr = kmap_atomic(bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(bh->b_page);
}
curr = next;
curr_blkoff = next_blkoff;
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(bh);
*cnop = curr;
ret = n;
@@ -587,24 +587,24 @@ static int nilfs_cpfile_set_snapshot(str
ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &cp_bh);
if (ret < 0)
goto out_sem;
- kaddr = kmap_atomic(cp_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
if (nilfs_checkpoint_invalid(cp)) {
ret = -ENOENT;
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
goto out_cp;
}
if (nilfs_checkpoint_snapshot(cp)) {
ret = 0;
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
goto out_cp;
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
ret = nilfs_cpfile_get_header_block(cpfile, &header_bh);
if (ret < 0)
goto out_cp;
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(header_bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, header_bh, kaddr);
list = &header->ch_snapshot_list;
curr_bh = header_bh;
@@ -616,13 +616,13 @@ static int nilfs_cpfile_set_snapshot(str
prev_blkoff = nilfs_cpfile_get_blkoff(cpfile, prev);
curr = prev;
if (curr_blkoff != prev_blkoff) {
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(curr_bh);
ret = nilfs_cpfile_get_checkpoint_block(cpfile, curr,
0, &curr_bh);
if (ret < 0)
goto out_header;
- kaddr = kmap_atomic(curr_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(curr_bh->b_page);
}
curr_blkoff = prev_blkoff;
cp = nilfs_cpfile_block_get_checkpoint(
@@ -630,7 +630,7 @@ static int nilfs_cpfile_set_snapshot(str
list = &cp->cp_snapshot_list;
prev = le64_to_cpu(list->ssl_prev);
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (prev != 0) {
ret = nilfs_cpfile_get_checkpoint_block(cpfile, prev, 0,
@@ -642,29 +642,29 @@ static int nilfs_cpfile_set_snapshot(str
get_bh(prev_bh);
}
- kaddr = kmap_atomic(curr_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(curr_bh->b_page);
list = nilfs_cpfile_block_get_snapshot_list(
cpfile, curr, curr_bh, kaddr);
list->ssl_prev = cpu_to_le64(cno);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
- kaddr = kmap_atomic(cp_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
cp->cp_snapshot_list.ssl_next = cpu_to_le64(curr);
cp->cp_snapshot_list.ssl_prev = cpu_to_le64(prev);
nilfs_checkpoint_set_snapshot(cp);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
- kaddr = kmap_atomic(prev_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(prev_bh->b_page);
list = nilfs_cpfile_block_get_snapshot_list(
cpfile, prev, prev_bh, kaddr);
list->ssl_next = cpu_to_le64(cno);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(header_bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, header_bh, kaddr);
le64_add_cpu(&header->ch_nsnapshots, 1);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
nilfs_mdt_mark_buffer_dirty(prev_bh);
nilfs_mdt_mark_buffer_dirty(curr_bh);
@@ -705,23 +705,23 @@ static int nilfs_cpfile_clear_snapshot(s
ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &cp_bh);
if (ret < 0)
goto out_sem;
- kaddr = kmap_atomic(cp_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
if (nilfs_checkpoint_invalid(cp)) {
ret = -ENOENT;
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
goto out_cp;
}
if (!nilfs_checkpoint_snapshot(cp)) {
ret = 0;
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
goto out_cp;
}
list = &cp->cp_snapshot_list;
next = le64_to_cpu(list->ssl_next);
prev = le64_to_cpu(list->ssl_prev);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
ret = nilfs_cpfile_get_header_block(cpfile, &header_bh);
if (ret < 0)
@@ -745,29 +745,29 @@ static int nilfs_cpfile_clear_snapshot(s
get_bh(prev_bh);
}
- kaddr = kmap_atomic(next_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(next_bh->b_page);
list = nilfs_cpfile_block_get_snapshot_list(
cpfile, next, next_bh, kaddr);
list->ssl_prev = cpu_to_le64(prev);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
- kaddr = kmap_atomic(prev_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(prev_bh->b_page);
list = nilfs_cpfile_block_get_snapshot_list(
cpfile, prev, prev_bh, kaddr);
list->ssl_next = cpu_to_le64(next);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
- kaddr = kmap_atomic(cp_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(cp_bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, cp_bh, kaddr);
cp->cp_snapshot_list.ssl_next = cpu_to_le64(0);
cp->cp_snapshot_list.ssl_prev = cpu_to_le64(0);
nilfs_checkpoint_clear_snapshot(cp);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(header_bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, header_bh, kaddr);
le64_add_cpu(&header->ch_nsnapshots, -1);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
nilfs_mdt_mark_buffer_dirty(next_bh);
nilfs_mdt_mark_buffer_dirty(prev_bh);
@@ -824,13 +824,13 @@ int nilfs_cpfile_is_snapshot(struct inod
ret = nilfs_cpfile_get_checkpoint_block(cpfile, cno, 0, &bh);
if (ret < 0)
goto out;
- kaddr = kmap_atomic(bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(bh->b_page);
cp = nilfs_cpfile_block_get_checkpoint(cpfile, cno, bh, kaddr);
if (nilfs_checkpoint_invalid(cp))
ret = -ENOENT;
else
ret = nilfs_checkpoint_snapshot(cp);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(bh);
out:
@@ -916,12 +916,12 @@ int nilfs_cpfile_get_stat(struct inode *
ret = nilfs_cpfile_get_header_block(cpfile, &bh);
if (ret < 0)
goto out_sem;
- kaddr = kmap_atomic(bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(bh->b_page);
header = nilfs_cpfile_block_get_header(cpfile, bh, kaddr);
cpstat->cs_cno = nilfs_mdt_cno(cpfile);
cpstat->cs_ncps = le64_to_cpu(header->ch_ncheckpoints);
cpstat->cs_nsss = le64_to_cpu(header->ch_nsnapshots);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(bh);
out_sem:
Index: linux-2.6/fs/nilfs2/dat.c
===================================================================
--- linux-2.6.orig/fs/nilfs2/dat.c
+++ linux-2.6/fs/nilfs2/dat.c
@@ -74,13 +74,13 @@ void nilfs_dat_commit_alloc(struct inode
struct nilfs_dat_entry *entry;
void *kaddr;
- kaddr = kmap_atomic(req->pr_entry_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(req->pr_entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, req->pr_entry_nr,
req->pr_entry_bh, kaddr);
entry->de_start = cpu_to_le64(NILFS_CNO_MIN);
entry->de_end = cpu_to_le64(NILFS_CNO_MAX);
entry->de_blocknr = cpu_to_le64(0);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
nilfs_palloc_commit_alloc_entry(dat, req);
nilfs_dat_commit_entry(dat, req);
@@ -97,13 +97,13 @@ void nilfs_dat_commit_free(struct inode
struct nilfs_dat_entry *entry;
void *kaddr;
- kaddr = kmap_atomic(req->pr_entry_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(req->pr_entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, req->pr_entry_nr,
req->pr_entry_bh, kaddr);
entry->de_start = cpu_to_le64(NILFS_CNO_MIN);
entry->de_end = cpu_to_le64(NILFS_CNO_MIN);
entry->de_blocknr = cpu_to_le64(0);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
nilfs_dat_commit_entry(dat, req);
nilfs_palloc_commit_free_entry(dat, req);
@@ -124,12 +124,12 @@ void nilfs_dat_commit_start(struct inode
struct nilfs_dat_entry *entry;
void *kaddr;
- kaddr = kmap_atomic(req->pr_entry_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(req->pr_entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, req->pr_entry_nr,
req->pr_entry_bh, kaddr);
entry->de_start = cpu_to_le64(nilfs_mdt_cno(dat));
entry->de_blocknr = cpu_to_le64(blocknr);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
nilfs_dat_commit_entry(dat, req);
}
@@ -148,12 +148,12 @@ int nilfs_dat_prepare_end(struct inode *
return ret;
}
- kaddr = kmap_atomic(req->pr_entry_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(req->pr_entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, req->pr_entry_nr,
req->pr_entry_bh, kaddr);
start = le64_to_cpu(entry->de_start);
blocknr = le64_to_cpu(entry->de_blocknr);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (blocknr == 0) {
ret = nilfs_palloc_prepare_free_entry(dat, req);
@@ -174,7 +174,7 @@ void nilfs_dat_commit_end(struct inode *
sector_t blocknr;
void *kaddr;
- kaddr = kmap_atomic(req->pr_entry_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(req->pr_entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, req->pr_entry_nr,
req->pr_entry_bh, kaddr);
end = start = le64_to_cpu(entry->de_start);
@@ -184,7 +184,7 @@ void nilfs_dat_commit_end(struct inode *
}
entry->de_end = cpu_to_le64(end);
blocknr = le64_to_cpu(entry->de_blocknr);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (blocknr == 0)
nilfs_dat_commit_free(dat, req);
@@ -199,12 +199,12 @@ void nilfs_dat_abort_end(struct inode *d
sector_t blocknr;
void *kaddr;
- kaddr = kmap_atomic(req->pr_entry_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(req->pr_entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, req->pr_entry_nr,
req->pr_entry_bh, kaddr);
start = le64_to_cpu(entry->de_start);
blocknr = le64_to_cpu(entry->de_blocknr);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (start == nilfs_mdt_cno(dat) && blocknr == 0)
nilfs_palloc_abort_free_entry(dat, req);
@@ -317,20 +317,20 @@ int nilfs_dat_move(struct inode *dat, __
ret = nilfs_palloc_get_entry_block(dat, vblocknr, 0, &entry_bh);
if (ret < 0)
return ret;
- kaddr = kmap_atomic(entry_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, vblocknr, entry_bh, kaddr);
if (unlikely(entry->de_blocknr == cpu_to_le64(0))) {
printk(KERN_CRIT "%s: vbn = %llu, [%llu, %llu)\n", __func__,
(unsigned long long)vblocknr,
(unsigned long long)le64_to_cpu(entry->de_start),
(unsigned long long)le64_to_cpu(entry->de_end));
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(entry_bh);
return -EINVAL;
}
WARN_ON(blocknr == 0);
entry->de_blocknr = cpu_to_le64(blocknr);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
nilfs_mdt_mark_buffer_dirty(entry_bh);
nilfs_mdt_mark_dirty(dat);
@@ -371,7 +371,7 @@ int nilfs_dat_translate(struct inode *da
if (ret < 0)
return ret;
- kaddr = kmap_atomic(entry_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(entry_bh->b_page);
entry = nilfs_palloc_block_get_entry(dat, vblocknr, entry_bh, kaddr);
blocknr = le64_to_cpu(entry->de_blocknr);
if (blocknr == 0) {
@@ -382,7 +382,7 @@ int nilfs_dat_translate(struct inode *da
*blocknrp = blocknr;
out:
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(entry_bh);
return ret;
}
@@ -403,7 +403,7 @@ ssize_t nilfs_dat_get_vinfo(struct inode
0, &entry_bh);
if (ret < 0)
return ret;
- kaddr = kmap_atomic(entry_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(entry_bh->b_page);
/* last virtual block number in this block */
first = vinfo->vi_vblocknr;
do_div(first, entries_per_block);
@@ -419,7 +419,7 @@ ssize_t nilfs_dat_get_vinfo(struct inode
vinfo->vi_end = le64_to_cpu(entry->de_end);
vinfo->vi_blocknr = le64_to_cpu(entry->de_blocknr);
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(entry_bh);
}
Index: linux-2.6/fs/nilfs2/dir.c
===================================================================
--- linux-2.6.orig/fs/nilfs2/dir.c
+++ linux-2.6/fs/nilfs2/dir.c
@@ -624,7 +624,7 @@ int nilfs_make_empty(struct inode *inode
unlock_page(page);
goto fail;
}
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memset(kaddr, 0, chunk_size);
de = (struct nilfs_dir_entry *)kaddr;
de->name_len = 1;
@@ -639,7 +639,7 @@ int nilfs_make_empty(struct inode *inode
de->inode = cpu_to_le64(parent->i_ino);
memcpy(de->name, "..\0", 4);
nilfs_set_de_type(de, inode);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
err = nilfs_commit_chunk(page, mapping, 0, chunk_size);
fail:
page_cache_release(page);
Index: linux-2.6/fs/nilfs2/ifile.c
===================================================================
--- linux-2.6.orig/fs/nilfs2/ifile.c
+++ linux-2.6/fs/nilfs2/ifile.c
@@ -111,11 +111,11 @@ int nilfs_ifile_delete_inode(struct inod
return ret;
}
- kaddr = kmap_atomic(req.pr_entry_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(req.pr_entry_bh->b_page);
raw_inode = nilfs_palloc_block_get_entry(ifile, req.pr_entry_nr,
req.pr_entry_bh, kaddr);
raw_inode->i_flags = 0;
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
nilfs_mdt_mark_buffer_dirty(req.pr_entry_bh);
brelse(req.pr_entry_bh);
Index: linux-2.6/fs/nilfs2/mdt.c
===================================================================
--- linux-2.6.orig/fs/nilfs2/mdt.c
+++ linux-2.6/fs/nilfs2/mdt.c
@@ -57,12 +57,12 @@ nilfs_mdt_insert_new_block(struct inode
set_buffer_mapped(bh);
- kaddr = kmap_atomic(bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(bh->b_page);
memset(kaddr + bh_offset(bh), 0, 1 << inode->i_blkbits);
if (init_block)
init_block(inode, bh, kaddr);
flush_dcache_page(bh->b_page);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
set_buffer_uptodate(bh);
nilfs_mark_buffer_dirty(bh);
Index: linux-2.6/fs/nilfs2/page.c
===================================================================
--- linux-2.6.orig/fs/nilfs2/page.c
+++ linux-2.6/fs/nilfs2/page.c
@@ -153,11 +153,11 @@ void nilfs_copy_buffer(struct buffer_hea
struct page *spage = sbh->b_page, *dpage = dbh->b_page;
struct buffer_head *bh;
- kaddr0 = kmap_atomic(spage, KM_USER0);
- kaddr1 = kmap_atomic(dpage, KM_USER1);
+ kaddr0 = kmap_atomic(spage);
+ kaddr1 = kmap_atomic(dpage);
memcpy(kaddr1 + bh_offset(dbh), kaddr0 + bh_offset(sbh), sbh->b_size);
- kunmap_atomic(kaddr1, KM_USER1);
- kunmap_atomic(kaddr0, KM_USER0);
+ kunmap_atomic(kaddr1);
+ kunmap_atomic(kaddr0);
dbh->b_state = sbh->b_state & NILFS_BUFFER_INHERENT_BITS;
dbh->b_blocknr = sbh->b_blocknr;
Index: linux-2.6/fs/nilfs2/recovery.c
===================================================================
--- linux-2.6.orig/fs/nilfs2/recovery.c
+++ linux-2.6/fs/nilfs2/recovery.c
@@ -494,9 +494,9 @@ static int nilfs_recovery_copy_block(str
if (unlikely(!bh_org))
return -EIO;
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memcpy(kaddr + bh_offset(bh_org), bh_org->b_data, bh_org->b_size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(bh_org);
return 0;
}
Index: linux-2.6/fs/nilfs2/segbuf.c
===================================================================
--- linux-2.6.orig/fs/nilfs2/segbuf.c
+++ linux-2.6/fs/nilfs2/segbuf.c
@@ -212,9 +212,9 @@ void nilfs_segbuf_fill_in_data_crc(struc
crc = crc32_le(crc, bh->b_data, bh->b_size);
}
list_for_each_entry(bh, &segbuf->sb_payload_buffers, b_assoc_buffers) {
- kaddr = kmap_atomic(bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(bh->b_page);
crc = crc32_le(crc, kaddr + bh_offset(bh), bh->b_size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
raw_sum->ss_datasum = cpu_to_le32(crc);
}
Index: linux-2.6/fs/nilfs2/segment.c
===================================================================
--- linux-2.6.orig/fs/nilfs2/segment.c
+++ linux-2.6/fs/nilfs2/segment.c
@@ -1699,7 +1699,7 @@ nilfs_copy_replace_page_buffers(struct p
return -ENOMEM;
bh2 = page_buffers(clone_page);
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
do {
if (list_empty(&bh->b_assoc_buffers))
continue;
@@ -1710,7 +1710,7 @@ nilfs_copy_replace_page_buffers(struct p
list_replace(&bh->b_assoc_buffers, &bh2->b_assoc_buffers);
list_add_tail(&bh->b_assoc_buffers, out);
} while (bh = bh->b_this_page, bh2 = bh2->b_this_page, bh != head);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (!TestSetPageWriteback(clone_page))
inc_zone_page_state(clone_page, NR_WRITEBACK);
Index: linux-2.6/fs/nilfs2/sufile.c
===================================================================
--- linux-2.6.orig/fs/nilfs2/sufile.c
+++ linux-2.6/fs/nilfs2/sufile.c
@@ -100,11 +100,11 @@ static void nilfs_sufile_mod_counter(str
struct nilfs_sufile_header *header;
void *kaddr;
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(header_bh->b_page);
header = kaddr + bh_offset(header_bh);
le64_add_cpu(&header->sh_ncleansegs, ncleanadd);
le64_add_cpu(&header->sh_ndirtysegs, ndirtyadd);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
nilfs_mdt_mark_buffer_dirty(header_bh);
}
@@ -269,11 +269,11 @@ int nilfs_sufile_alloc(struct inode *suf
ret = nilfs_sufile_get_header_block(sufile, &header_bh);
if (ret < 0)
goto out_sem;
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(header_bh->b_page);
header = nilfs_sufile_block_get_header(sufile, header_bh, kaddr);
ncleansegs = le64_to_cpu(header->sh_ncleansegs);
last_alloc = le64_to_cpu(header->sh_last_alloc);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
nsegments = nilfs_sufile_get_nsegments(sufile);
segnum = last_alloc + 1;
@@ -288,7 +288,7 @@ int nilfs_sufile_alloc(struct inode *suf
&su_bh);
if (ret < 0)
goto out_header;
- kaddr = kmap_atomic(su_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(
sufile, segnum, su_bh, kaddr);
@@ -299,15 +299,15 @@ int nilfs_sufile_alloc(struct inode *suf
continue;
/* found a clean segment */
nilfs_segment_usage_set_dirty(su);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(header_bh->b_page);
header = nilfs_sufile_block_get_header(
sufile, header_bh, kaddr);
le64_add_cpu(&header->sh_ncleansegs, -1);
le64_add_cpu(&header->sh_ndirtysegs, 1);
header->sh_last_alloc = cpu_to_le64(segnum);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
nilfs_mdt_mark_buffer_dirty(header_bh);
nilfs_mdt_mark_buffer_dirty(su_bh);
@@ -317,7 +317,7 @@ int nilfs_sufile_alloc(struct inode *suf
goto out_header;
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(su_bh);
}
@@ -339,16 +339,16 @@ void nilfs_sufile_do_cancel_free(struct
struct nilfs_segment_usage *su;
void *kaddr;
- kaddr = kmap_atomic(su_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
if (unlikely(!nilfs_segment_usage_clean(su))) {
printk(KERN_WARNING "%s: segment %llu must be clean\n",
__func__, (unsigned long long)segnum);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
return;
}
nilfs_segment_usage_set_dirty(su);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
nilfs_sufile_mod_counter(header_bh, -1, 1);
nilfs_mdt_mark_buffer_dirty(su_bh);
@@ -363,11 +363,11 @@ void nilfs_sufile_do_scrap(struct inode
void *kaddr;
int clean, dirty;
- kaddr = kmap_atomic(su_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
if (su->su_flags == cpu_to_le32(1UL << NILFS_SEGMENT_USAGE_DIRTY) &&
su->su_nblocks == cpu_to_le32(0)) {
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
return;
}
clean = nilfs_segment_usage_clean(su);
@@ -377,7 +377,7 @@ void nilfs_sufile_do_scrap(struct inode
su->su_lastmod = cpu_to_le64(0);
su->su_nblocks = cpu_to_le32(0);
su->su_flags = cpu_to_le32(1UL << NILFS_SEGMENT_USAGE_DIRTY);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
nilfs_sufile_mod_counter(header_bh, clean ? (u64)-1 : 0, dirty ? 0 : 1);
nilfs_mdt_mark_buffer_dirty(su_bh);
@@ -392,12 +392,12 @@ void nilfs_sufile_do_free(struct inode *
void *kaddr;
int sudirty;
- kaddr = kmap_atomic(su_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
if (nilfs_segment_usage_clean(su)) {
printk(KERN_WARNING "%s: segment %llu is already clean\n",
__func__, (unsigned long long)segnum);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
return;
}
WARN_ON(nilfs_segment_usage_error(su));
@@ -405,7 +405,7 @@ void nilfs_sufile_do_free(struct inode *
sudirty = nilfs_segment_usage_dirty(su);
nilfs_segment_usage_set_clean(su);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
nilfs_mdt_mark_buffer_dirty(su_bh);
nilfs_sufile_mod_counter(header_bh, 1, sudirty ? (u64)-1 : 0);
@@ -514,7 +514,7 @@ int nilfs_sufile_get_stat(struct inode *
if (ret < 0)
goto out_sem;
- kaddr = kmap_atomic(header_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(header_bh->b_page);
header = nilfs_sufile_block_get_header(sufile, header_bh, kaddr);
sustat->ss_nsegs = nilfs_sufile_get_nsegments(sufile);
sustat->ss_ncleansegs = le64_to_cpu(header->sh_ncleansegs);
@@ -524,7 +524,7 @@ int nilfs_sufile_get_stat(struct inode *
spin_lock(&nilfs->ns_last_segment_lock);
sustat->ss_prot_seq = nilfs->ns_prot_seq;
spin_unlock(&nilfs->ns_last_segment_lock);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(header_bh);
out_sem:
@@ -567,15 +567,15 @@ void nilfs_sufile_do_set_error(struct in
void *kaddr;
int suclean;
- kaddr = kmap_atomic(su_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(sufile, segnum, su_bh, kaddr);
if (nilfs_segment_usage_error(su)) {
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
return;
}
suclean = nilfs_segment_usage_clean(su);
nilfs_segment_usage_set_error(su);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (suclean)
nilfs_sufile_mod_counter(header_bh, -1, 0);
@@ -635,7 +635,7 @@ ssize_t nilfs_sufile_get_suinfo(struct i
continue;
}
- kaddr = kmap_atomic(su_bh->b_page, KM_USER0);
+ kaddr = kmap_atomic(su_bh->b_page);
su = nilfs_sufile_block_get_segment_usage(
sufile, segnum, su_bh, kaddr);
for (j = 0; j < n;
@@ -648,7 +648,7 @@ ssize_t nilfs_sufile_get_suinfo(struct i
si->sui_flags |=
(1UL << NILFS_SEGMENT_USAGE_ACTIVE);
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
brelse(su_bh);
}
ret = nsegs;
Index: linux-2.6/fs/ntfs/aops.c
===================================================================
--- linux-2.6.orig/fs/ntfs/aops.c
+++ linux-2.6/fs/ntfs/aops.c
@@ -93,11 +93,11 @@ static void ntfs_end_buffer_async_read(s
if (file_ofs < init_size)
ofs = init_size - file_ofs;
local_irq_save(flags);
- kaddr = kmap_atomic(page, KM_BIO_SRC_IRQ);
+ kaddr = kmap_atomic(page);
memset(kaddr + bh_offset(bh) + ofs, 0,
bh->b_size - ofs);
flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_BIO_SRC_IRQ);
+ kunmap_atomic(kaddr);
local_irq_restore(flags);
}
} else {
@@ -146,11 +146,11 @@ static void ntfs_end_buffer_async_read(s
/* Should have been verified before we got here... */
BUG_ON(!recs);
local_irq_save(flags);
- kaddr = kmap_atomic(page, KM_BIO_SRC_IRQ);
+ kaddr = kmap_atomic(page);
for (i = 0; i < recs; i++)
post_read_mst_fixup((NTFS_RECORD*)(kaddr +
i * rec_size), rec_size);
- kunmap_atomic(kaddr, KM_BIO_SRC_IRQ);
+ kunmap_atomic(kaddr);
local_irq_restore(flags);
flush_dcache_page(page);
if (likely(page_uptodate && !PageError(page)))
@@ -503,7 +503,7 @@ retry_readpage:
/* Race with shrinking truncate. */
attr_len = i_size;
}
- addr = kmap_atomic(page, KM_USER0);
+ addr = kmap_atomic(page);
/* Copy the data to the page. */
memcpy(addr, (u8*)ctx->attr +
le16_to_cpu(ctx->attr->data.resident.value_offset),
@@ -511,7 +511,7 @@ retry_readpage:
/* Zero the remainder of the page. */
memset(addr + attr_len, 0, PAGE_CACHE_SIZE - attr_len);
flush_dcache_page(page);
- kunmap_atomic(addr, KM_USER0);
+ kunmap_atomic(addr);
put_unm_err_out:
ntfs_attr_put_search_ctx(ctx);
unm_err_out:
@@ -745,14 +745,14 @@ lock_retry_remap:
unsigned long *bpos, *bend;
/* Check if the buffer is zero. */
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
bpos = (unsigned long *)(kaddr + bh_offset(bh));
bend = (unsigned long *)((u8*)bpos + blocksize);
do {
if (unlikely(*bpos))
break;
} while (likely(++bpos < bend));
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (bpos == bend) {
/*
* Buffer is zero and sparse, no need to write
@@ -1494,14 +1494,14 @@ retry_writepage:
/* Shrinking cannot fail. */
BUG_ON(err);
}
- addr = kmap_atomic(page, KM_USER0);
+ addr = kmap_atomic(page);
/* Copy the data from the page to the mft record. */
memcpy((u8*)ctx->attr +
le16_to_cpu(ctx->attr->data.resident.value_offset),
addr, attr_len);
/* Zero out of bounds area in the page cache page. */
memset(addr + attr_len, 0, PAGE_CACHE_SIZE - attr_len);
- kunmap_atomic(addr, KM_USER0);
+ kunmap_atomic(addr);
flush_dcache_page(page);
flush_dcache_mft_record_page(ctx->ntfs_ino);
/* We are done with the page. */
Index: linux-2.6/fs/ntfs/attrib.c
===================================================================
--- linux-2.6.orig/fs/ntfs/attrib.c
+++ linux-2.6/fs/ntfs/attrib.c
@@ -1655,12 +1655,12 @@ int ntfs_attr_make_non_resident(ntfs_ino
attr_size = le32_to_cpu(a->data.resident.value_length);
BUG_ON(attr_size != data_size);
if (page && !PageUptodate(page)) {
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memcpy(kaddr, (u8*)a +
le16_to_cpu(a->data.resident.value_offset),
attr_size);
memset(kaddr + attr_size, 0, PAGE_CACHE_SIZE - attr_size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
flush_dcache_page(page);
SetPageUptodate(page);
}
@@ -1805,9 +1805,9 @@ undo_err_out:
sizeof(a->data.resident.reserved));
/* Copy the data from the page back to the attribute value. */
if (page) {
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memcpy((u8*)a + mp_ofs, kaddr, attr_size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
/* Setup the allocated size in the ntfs inode in case it changed. */
write_lock_irqsave(&ni->size_lock, flags);
@@ -2539,10 +2539,10 @@ int ntfs_attr_set(ntfs_inode *ni, const
size = PAGE_CACHE_SIZE;
if (idx == end)
size = end_ofs;
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memset(kaddr + start_ofs, val, size - start_ofs);
flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
set_page_dirty(page);
page_cache_release(page);
balance_dirty_pages_ratelimited(mapping);
@@ -2560,10 +2560,10 @@ int ntfs_attr_set(ntfs_inode *ni, const
"page (index 0x%lx).", idx);
return -ENOMEM;
}
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memset(kaddr, val, PAGE_CACHE_SIZE);
flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
/*
* If the page has buffers, mark them uptodate since buffer
* state and not page state is definitive in 2.6 kernels.
@@ -2597,10 +2597,10 @@ int ntfs_attr_set(ntfs_inode *ni, const
"(error, index 0x%lx).", idx);
return PTR_ERR(page);
}
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memset(kaddr, val, end_ofs);
flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
set_page_dirty(page);
page_cache_release(page);
balance_dirty_pages_ratelimited(mapping);
Index: linux-2.6/fs/ntfs/file.c
===================================================================
--- linux-2.6.orig/fs/ntfs/file.c
+++ linux-2.6/fs/ntfs/file.c
@@ -715,7 +715,7 @@ map_buffer_cached:
u8 *kaddr;
unsigned pofs;
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
if (bh_pos < pos) {
pofs = bh_pos & ~PAGE_CACHE_MASK;
memset(kaddr + pofs, 0, pos - bh_pos);
@@ -724,7 +724,7 @@ map_buffer_cached:
pofs = end & ~PAGE_CACHE_MASK;
memset(kaddr + pofs, 0, bh_end - end);
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
flush_dcache_page(page);
}
continue;
@@ -1298,9 +1298,9 @@ static inline size_t ntfs_copy_from_user
len = PAGE_CACHE_SIZE - ofs;
if (len > bytes)
len = bytes;
- addr = kmap_atomic(*pages, KM_USER0);
+ addr = kmap_atomic(*pages);
left = __copy_from_user_inatomic(addr + ofs, buf, len);
- kunmap_atomic(addr, KM_USER0);
+ kunmap_atomic(addr);
if (unlikely(left)) {
/* Do it the slow way. */
addr = kmap(*pages);
@@ -1413,10 +1413,10 @@ static inline size_t ntfs_copy_from_user
len = PAGE_CACHE_SIZE - ofs;
if (len > bytes)
len = bytes;
- addr = kmap_atomic(*pages, KM_USER0);
+ addr = kmap_atomic(*pages);
copied = __ntfs_copy_from_user_iovec_inatomic(addr + ofs,
*iov, *iov_ofs, len);
- kunmap_atomic(addr, KM_USER0);
+ kunmap_atomic(addr);
if (unlikely(copied != len)) {
/* Do it the slow way. */
addr = kmap(*pages);
@@ -1703,7 +1703,7 @@ static int ntfs_commit_pages_after_write
BUG_ON(end > le32_to_cpu(a->length) -
le16_to_cpu(a->data.resident.value_offset));
kattr = (u8*)a + le16_to_cpu(a->data.resident.value_offset);
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
/* Copy the received data from the page to the mft record. */
memcpy(kattr + pos, kaddr + pos, bytes);
/* Update the attribute length if necessary. */
@@ -1725,7 +1725,7 @@ static int ntfs_commit_pages_after_write
flush_dcache_page(page);
SetPageUptodate(page);
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
/* Update initialized_size/i_size if necessary. */
read_lock_irqsave(&ni->size_lock, flags);
initialized_size = ni->initialized_size;
Index: linux-2.6/fs/ntfs/super.c
===================================================================
--- linux-2.6.orig/fs/ntfs/super.c
+++ linux-2.6/fs/ntfs/super.c
@@ -2489,7 +2489,7 @@ static s64 get_nr_free_clusters(ntfs_vol
nr_free -= PAGE_CACHE_SIZE * 8;
continue;
}
- kaddr = (u32*)kmap_atomic(page, KM_USER0);
+ kaddr = (u32*)kmap_atomic(page);
/*
* For each 4 bytes, subtract the number of set bits. If this
* is the last page and it is partial we don't really care as
@@ -2499,7 +2499,7 @@ static s64 get_nr_free_clusters(ntfs_vol
*/
for (i = 0; i < PAGE_CACHE_SIZE / 4; i++)
nr_free -= (s64)hweight32(kaddr[i]);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
page_cache_release(page);
}
ntfs_debug("Finished reading $Bitmap, last index = 0x%lx.", index - 1);
@@ -2560,7 +2560,7 @@ static unsigned long __get_nr_free_mft_r
nr_free -= PAGE_CACHE_SIZE * 8;
continue;
}
- kaddr = (u32*)kmap_atomic(page, KM_USER0);
+ kaddr = (u32*)kmap_atomic(page);
/*
* For each 4 bytes, subtract the number of set bits. If this
* is the last page and it is partial we don't really care as
@@ -2570,7 +2570,7 @@ static unsigned long __get_nr_free_mft_r
*/
for (i = 0; i < PAGE_CACHE_SIZE / 4; i++)
nr_free -= (s64)hweight32(kaddr[i]);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
page_cache_release(page);
}
ntfs_debug("Finished reading $MFT/$BITMAP, last index = 0x%lx.",
Index: linux-2.6/fs/ocfs2/aops.c
===================================================================
--- linux-2.6.orig/fs/ocfs2/aops.c
+++ linux-2.6/fs/ocfs2/aops.c
@@ -101,7 +101,7 @@ static int ocfs2_symlink_get_block(struc
* copy, the data is still good. */
if (buffer_jbd(buffer_cache_bh)
&& ocfs2_inode_is_new(inode)) {
- kaddr = kmap_atomic(bh_result->b_page, KM_USER0);
+ kaddr = kmap_atomic(bh_result->b_page);
if (!kaddr) {
mlog(ML_ERROR, "couldn't kmap!\n");
goto bail;
@@ -109,7 +109,7 @@ static int ocfs2_symlink_get_block(struc
memcpy(kaddr + (bh_result->b_size * iblock),
buffer_cache_bh->b_data,
bh_result->b_size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
set_buffer_uptodate(bh_result);
}
brelse(buffer_cache_bh);
@@ -237,13 +237,13 @@ int ocfs2_read_inline_data(struct inode
return -EROFS;
}
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
if (size)
memcpy(kaddr, di->id2.i_data.id_data, size);
/* Clear the remaining part of the page */
memset(kaddr + size, 0, PAGE_CACHE_SIZE - size);
flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
SetPageUptodate(page);
@@ -748,7 +748,7 @@ static void ocfs2_clear_page_regions(str
ocfs2_figure_cluster_boundaries(osb, cpos, &cluster_start, &cluster_end);
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
if (from || to) {
if (from > cluster_start)
@@ -759,7 +759,7 @@ static void ocfs2_clear_page_regions(str
memset(kaddr + cluster_start, 0, cluster_end - cluster_start);
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
/*
@@ -1907,9 +1907,9 @@ static void ocfs2_write_end_inline(struc
}
}
- kaddr = kmap_atomic(wc->w_target_page, KM_USER0);
+ kaddr = kmap_atomic(wc->w_target_page);
memcpy(di->id2.i_data.id_data + pos, kaddr + pos, *copied);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
mlog(0, "Data written to inode at offset %llu. "
"id_count = %u, copied = %u, i_dyn_features = 0x%x\n",
Index: linux-2.6/fs/pipe.c
===================================================================
--- linux-2.6.orig/fs/pipe.c
+++ linux-2.6/fs/pipe.c
@@ -217,7 +217,7 @@ void *generic_pipe_buf_map(struct pipe_i
{
if (atomic) {
buf->flags |= PIPE_BUF_FLAG_ATOMIC;
- return kmap_atomic(buf->page, KM_USER0);
+ return kmap_atomic(buf->page);
}
return kmap(buf->page);
@@ -237,7 +237,7 @@ void generic_pipe_buf_unmap(struct pipe_
{
if (buf->flags & PIPE_BUF_FLAG_ATOMIC) {
buf->flags &= ~PIPE_BUF_FLAG_ATOMIC;
- kunmap_atomic(map_data, KM_USER0);
+ kunmap_atomic(map_data);
} else
kunmap(buf->page);
}
@@ -546,14 +546,14 @@ redo1:
iov_fault_in_pages_read(iov, chars);
redo2:
if (atomic)
- src = kmap_atomic(page, KM_USER0);
+ src = kmap_atomic(page);
else
src = kmap(page);
error = pipe_iov_copy_from_user(src, iov, chars,
atomic);
if (atomic)
- kunmap_atomic(src, KM_USER0);
+ kunmap_atomic(src);
else
kunmap(page);
Index: linux-2.6/fs/reiserfs/stree.c
===================================================================
--- linux-2.6.orig/fs/reiserfs/stree.c
+++ linux-2.6/fs/reiserfs/stree.c
@@ -1247,12 +1247,12 @@ int reiserfs_delete_item(struct reiserfs
** -clm
*/
- data = kmap_atomic(un_bh->b_page, KM_USER0);
+ data = kmap_atomic(un_bh->b_page);
off = ((le_ih_k_offset(&s_ih) - 1) & (PAGE_CACHE_SIZE - 1));
memcpy(data + off,
B_I_PITEM(PATH_PLAST_BUFFER(path), &s_ih),
ret_value);
- kunmap_atomic(data, KM_USER0);
+ kunmap_atomic(data);
}
/* Perform balancing after all resources have been collected at once. */
do_balance(&s_del_balance, NULL, NULL, M_DELETE);
Index: linux-2.6/fs/reiserfs/tail_conversion.c
===================================================================
--- linux-2.6.orig/fs/reiserfs/tail_conversion.c
+++ linux-2.6/fs/reiserfs/tail_conversion.c
@@ -128,9 +128,9 @@ int direct2indirect(struct reiserfs_tran
if (up_to_date_bh) {
unsigned pgoff =
(tail_offset + total_tail - 1) & (PAGE_CACHE_SIZE - 1);
- char *kaddr = kmap_atomic(up_to_date_bh->b_page, KM_USER0);
+ char *kaddr = kmap_atomic(up_to_date_bh->b_page);
memset(kaddr + pgoff, 0, blk_size - total_tail);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
REISERFS_I(inode)->i_first_direct_byte = U32_MAX;
Index: linux-2.6/fs/splice.c
===================================================================
--- linux-2.6.orig/fs/splice.c
+++ linux-2.6/fs/splice.c
@@ -709,11 +709,11 @@ int pipe_to_file(struct pipe_inode_info
* Careful, ->map() uses KM_USER0!
*/
char *src = buf->ops->map(pipe, buf, 1);
- char *dst = kmap_atomic(page, KM_USER1);
+ char *dst = kmap_atomic(page);
memcpy(dst + offset, src + buf->offset, this_len);
flush_dcache_page(page);
- kunmap_atomic(dst, KM_USER1);
+ kunmap_atomic(dst);
buf->ops->unmap(pipe, buf, src);
}
ret = pagecache_write_end(file, mapping, sd->pos, this_len, this_len,
Index: linux-2.6/fs/squashfs/file.c
===================================================================
--- linux-2.6.orig/fs/squashfs/file.c
+++ linux-2.6/fs/squashfs/file.c
@@ -465,10 +465,10 @@ static int squashfs_readpage(struct file
if (PageUptodate(push_page))
goto skip_page;
- pageaddr = kmap_atomic(push_page, KM_USER0);
+ pageaddr = kmap_atomic(push_page);
squashfs_copy_data(pageaddr, buffer, offset, avail);
memset(pageaddr + avail, 0, PAGE_CACHE_SIZE - avail);
- kunmap_atomic(pageaddr, KM_USER0);
+ kunmap_atomic(pageaddr);
flush_dcache_page(push_page);
SetPageUptodate(push_page);
skip_page:
@@ -485,9 +485,9 @@ skip_page:
error_out:
SetPageError(page);
out:
- pageaddr = kmap_atomic(page, KM_USER0);
+ pageaddr = kmap_atomic(page);
memset(pageaddr, 0, PAGE_CACHE_SIZE);
- kunmap_atomic(pageaddr, KM_USER0);
+ kunmap_atomic(pageaddr);
flush_dcache_page(page);
if (!PageError(page))
SetPageUptodate(page);
Index: linux-2.6/fs/squashfs/symlink.c
===================================================================
--- linux-2.6.orig/fs/squashfs/symlink.c
+++ linux-2.6/fs/squashfs/symlink.c
@@ -90,14 +90,14 @@ static int squashfs_symlink_readpage(str
goto error_out;
}
- pageaddr = kmap_atomic(page, KM_USER0);
+ pageaddr = kmap_atomic(page);
copied = squashfs_copy_data(pageaddr + bytes, entry, offset,
length - bytes);
if (copied == length - bytes)
memset(pageaddr + length, 0, PAGE_CACHE_SIZE - length);
else
block = entry->next_index;
- kunmap_atomic(pageaddr, KM_USER0);
+ kunmap_atomic(pageaddr);
squashfs_cache_put(entry);
}
Index: linux-2.6/fs/ubifs/file.c
===================================================================
--- linux-2.6.orig/fs/ubifs/file.c
+++ linux-2.6/fs/ubifs/file.c
@@ -1033,10 +1033,10 @@ static int ubifs_writepage(struct page *
* the page size, the remaining memory is zeroed when mapped, and
* writes to that region are not written out to the file."
*/
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memset(kaddr + len, 0, PAGE_CACHE_SIZE - len);
flush_dcache_page(page);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (i_size > synced_i_size) {
err = inode->i_sb->s_op->write_inode(inode, 1);
Index: linux-2.6/fs/udf/file.c
===================================================================
--- linux-2.6.orig/fs/udf/file.c
+++ linux-2.6/fs/udf/file.c
@@ -88,10 +88,10 @@ static int udf_adinicb_write_end(struct
char *kaddr;
struct udf_inode_info *iinfo = UDF_I(inode);
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memcpy(iinfo->i_ext.i_data + iinfo->i_lenEAttr + offset,
kaddr + offset, copied);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
return simple_write_end(file, mapping, pos, len, copied, page, fsdata);
}
Index: linux-2.6/include/linux/bio.h
===================================================================
--- linux-2.6.orig/include/linux/bio.h
+++ linux-2.6/include/linux/bio.h
@@ -463,7 +463,7 @@ static __always_inline char *bvec_kmap_i
* balancing is a lot nicer this way
*/
local_irq_save(*flags);
- addr = (unsigned long) kmap_atomic(bvec->bv_page, KM_BIO_SRC_IRQ);
+ addr = (unsigned long) kmap_atomic(bvec->bv_page);
BUG_ON(addr & ~PAGE_MASK);
@@ -475,7 +475,7 @@ static __always_inline void bvec_kunmap_
{
unsigned long ptr = (unsigned long) buffer & PAGE_MASK;
- kunmap_atomic((void *) ptr, KM_BIO_SRC_IRQ);
+ kunmap_atomic((void *) ptr);
local_irq_restore(*flags);
}
Index: linux-2.6/include/linux/highmem.h
===================================================================
--- linux-2.6.orig/include/linux/highmem.h
+++ linux-2.6/include/linux/highmem.h
@@ -67,7 +67,7 @@ static inline void kunmap(struct page *p
{
}
-static inline void *kmap_atomic(struct page *page, enum km_type idx)
+static inline void *kmap_atomic(struct page *page)
{
pagefault_disable();
return page_address(page);
@@ -87,9 +87,9 @@ static inline void *kmap_atomic(struct p
#ifndef clear_user_highpage
static inline void clear_user_highpage(struct page *page, unsigned long vaddr)
{
- void *addr = kmap_atomic(page, KM_USER0);
+ void *addr = kmap_atomic(page);
clear_user_page(addr, vaddr, page);
- kunmap_atomic(addr, KM_USER0);
+ kunmap_atomic(addr);
}
#endif
@@ -140,16 +140,16 @@ alloc_zeroed_user_highpage_movable(struc
static inline void clear_highpage(struct page *page)
{
- void *kaddr = kmap_atomic(page, KM_USER0);
+ void *kaddr = kmap_atomic(page);
clear_page(kaddr);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
}
static inline void zero_user_segments(struct page *page,
unsigned start1, unsigned end1,
unsigned start2, unsigned end2)
{
- void *kaddr = kmap_atomic(page, KM_USER0);
+ void *kaddr = kmap_atomic(page);
BUG_ON(end1 > PAGE_SIZE || end2 > PAGE_SIZE);
@@ -159,7 +159,7 @@ static inline void zero_user_segments(st
if (end2 > start2)
memset(kaddr + start2, 0, end2 - start2);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
flush_dcache_page(page);
}
@@ -188,11 +188,11 @@ static inline void copy_user_highpage(st
{
char *vfrom, *vto;
- vfrom = kmap_atomic(from, KM_USER0);
- vto = kmap_atomic(to, KM_USER1);
+ vfrom = kmap_atomic(from);
+ vto = kmap_atomic(to);
copy_user_page(vto, vfrom, vaddr, to);
- kunmap_atomic(vto, KM_USER1);
- kunmap_atomic(vfrom, KM_USER0);
+ kunmap_atomic(vto);
+ kunmap_atomic(vfrom);
}
#endif
@@ -201,11 +201,11 @@ static inline void copy_highpage(struct
{
char *vfrom, *vto;
- vfrom = kmap_atomic(from, KM_USER0);
- vto = kmap_atomic(to, KM_USER1);
+ vfrom = kmap_atomic(from);
+ vto = kmap_atomic(to);
copy_page(vto, vfrom);
- kunmap_atomic(vto, KM_USER1);
- kunmap_atomic(vfrom, KM_USER0);
+ kunmap_atomic(vto);
+ kunmap_atomic(vfrom);
}
#endif /* _LINUX_HIGHMEM_H */
Index: linux-2.6/include/linux/io-mapping.h
===================================================================
--- linux-2.6.orig/include/linux/io-mapping.h
+++ linux-2.6/include/linux/io-mapping.h
@@ -86,13 +86,13 @@ io_mapping_map_atomic_wc(struct io_mappi
BUG_ON(offset >= mapping->size);
phys_addr = mapping->base + offset;
pfn = (unsigned long) (phys_addr >> PAGE_SHIFT);
- return iomap_atomic_prot_pfn(pfn, KM_USER0, mapping->prot);
+ return iomap_atomic_prot_pfn(pfn, mapping->prot);
}
static inline void
io_mapping_unmap_atomic(void *vaddr)
{
- iounmap_atomic(vaddr, KM_USER0);
+ iounmap_atomic(vaddr);
}
static inline void *
Index: linux-2.6/kernel/power/snapshot.c
===================================================================
--- linux-2.6.orig/kernel/power/snapshot.c
+++ linux-2.6/kernel/power/snapshot.c
@@ -975,20 +975,20 @@ static void copy_data_page(unsigned long
s_page = pfn_to_page(src_pfn);
d_page = pfn_to_page(dst_pfn);
if (PageHighMem(s_page)) {
- src = kmap_atomic(s_page, KM_USER0);
- dst = kmap_atomic(d_page, KM_USER1);
+ src = kmap_atomic(s_page);
+ dst = kmap_atomic(d_page);
do_copy_page(dst, src);
- kunmap_atomic(dst, KM_USER1);
- kunmap_atomic(src, KM_USER0);
+ kunmap_atomic(dst);
+ kunmap_atomic(src);
} else {
if (PageHighMem(d_page)) {
/* Page pointed to by src may contain some kernel
* data modified by kmap_atomic()
*/
safe_copy_page(buffer, s_page);
- dst = kmap_atomic(d_page, KM_USER0);
+ dst = kmap_atomic(d_page);
memcpy(dst, buffer, PAGE_SIZE);
- kunmap_atomic(dst, KM_USER0);
+ kunmap_atomic(dst);
} else {
safe_copy_page(page_address(d_page), s_page);
}
@@ -1654,9 +1654,9 @@ int snapshot_read_next(struct snapshot_h
*/
void *kaddr;
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memcpy(buffer, kaddr, PAGE_SIZE);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
handle->buffer = buffer;
} else {
handle->buffer = page_address(page);
@@ -1947,9 +1947,9 @@ static void copy_last_highmem_page(void)
if (last_highmem_page) {
void *dst;
- dst = kmap_atomic(last_highmem_page, KM_USER0);
+ dst = kmap_atomic(last_highmem_page);
memcpy(dst, buffer, PAGE_SIZE);
- kunmap_atomic(dst, KM_USER0);
+ kunmap_atomic(dst);
last_highmem_page = NULL;
}
}
@@ -2248,13 +2248,13 @@ swap_two_pages_data(struct page *p1, str
{
void *kaddr1, *kaddr2;
- kaddr1 = kmap_atomic(p1, KM_USER0);
- kaddr2 = kmap_atomic(p2, KM_USER1);
+ kaddr1 = kmap_atomic(p1);
+ kaddr2 = kmap_atomic(p2);
memcpy(buf, kaddr1, PAGE_SIZE);
memcpy(kaddr1, kaddr2, PAGE_SIZE);
memcpy(kaddr2, buf, PAGE_SIZE);
- kunmap_atomic(kaddr2, KM_USER1);
- kunmap_atomic(kaddr1, KM_USER0);
+ kunmap_atomic(kaddr2);
+ kunmap_atomic(kaddr1);
}
/**
Index: linux-2.6/lib/scatterlist.c
===================================================================
--- linux-2.6.orig/lib/scatterlist.c
+++ linux-2.6/lib/scatterlist.c
@@ -366,7 +366,7 @@ bool sg_miter_next(struct sg_mapping_ite
miter->consumed = miter->length;
if (miter->__flags & SG_MITER_ATOMIC)
- miter->addr = kmap_atomic(miter->page, KM_BIO_SRC_IRQ) + off;
+ miter->addr = kmap_atomic(miter->page) + off;
else
miter->addr = kmap(miter->page) + off;
@@ -400,7 +400,7 @@ void sg_miter_stop(struct sg_mapping_ite
if (miter->__flags & SG_MITER_ATOMIC) {
WARN_ON(!irqs_disabled());
- kunmap_atomic(miter->addr, KM_BIO_SRC_IRQ);
+ kunmap_atomic(miter->addr);
} else
kunmap(miter->page);
Index: linux-2.6/lib/swiotlb.c
===================================================================
--- linux-2.6.orig/lib/swiotlb.c
+++ linux-2.6/lib/swiotlb.c
@@ -312,7 +312,7 @@ static void swiotlb_bounce(phys_addr_t p
memcpy(dma_addr, buffer + offset, sz);
else
memcpy(buffer + offset, dma_addr, sz);
- kunmap_atomic(buffer, KM_BOUNCE_READ);
+ kunmap_atomic(buffer);
local_irq_restore(flags);
size -= sz;
Index: linux-2.6/mm/bounce.c
===================================================================
--- linux-2.6.orig/mm/bounce.c
+++ linux-2.6/mm/bounce.c
@@ -50,9 +50,9 @@ static void bounce_copy_vec(struct bio_v
unsigned char *vto;
local_irq_save(flags);
- vto = kmap_atomic(to->bv_page, KM_BOUNCE_READ);
+ vto = kmap_atomic(to->bv_page);
memcpy(vto + to->bv_offset, vfrom, to->bv_len);
- kunmap_atomic(vto, KM_BOUNCE_READ);
+ kunmap_atomic(vto);
local_irq_restore(flags);
}
Index: linux-2.6/mm/filemap.c
===================================================================
--- linux-2.6.orig/mm/filemap.c
+++ linux-2.6/mm/filemap.c
@@ -1205,10 +1205,10 @@ int file_read_actor(read_descriptor_t *d
* taking the kmap.
*/
if (!fault_in_pages_writeable(desc->arg.buf, size)) {
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
left = __copy_to_user_inatomic(desc->arg.buf,
kaddr + offset, size);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
if (left == 0)
goto success;
}
@@ -1854,7 +1854,7 @@ size_t iov_iter_copy_from_user_atomic(st
size_t copied;
BUG_ON(!in_atomic());
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
if (likely(i->nr_segs == 1)) {
int left;
char __user *buf = i->iov->iov_base + i->iov_offset;
@@ -1864,7 +1864,7 @@ size_t iov_iter_copy_from_user_atomic(st
copied = __iovec_copy_from_user_inatomic(kaddr + offset,
i->iov, i->iov_offset, bytes);
}
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
return copied;
}
Index: linux-2.6/mm/ksm.c
===================================================================
--- linux-2.6.orig/mm/ksm.c
+++ linux-2.6/mm/ksm.c
@@ -590,9 +590,9 @@ error:
static u32 calc_checksum(struct page *page)
{
u32 checksum;
- void *addr = kmap_atomic(page, KM_USER0);
+ void *addr = kmap_atomic(page);
checksum = jhash2(addr, PAGE_SIZE / 4, 17);
- kunmap_atomic(addr, KM_USER0);
+ kunmap_atomic(addr);
return checksum;
}
@@ -601,11 +601,11 @@ static int memcmp_pages(struct page *pag
char *addr1, *addr2;
int ret;
- addr1 = kmap_atomic(page1, KM_USER0);
- addr2 = kmap_atomic(page2, KM_USER1);
+ addr1 = kmap_atomic(page1);
+ addr2 = kmap_atomic(page2);
ret = memcmp(addr1, addr2, PAGE_SIZE);
- kunmap_atomic(addr2, KM_USER1);
- kunmap_atomic(addr1, KM_USER0);
+ kunmap_atomic(addr2);
+ kunmap_atomic(addr1);
return ret;
}
Index: linux-2.6/mm/memory.c
===================================================================
--- linux-2.6.orig/mm/memory.c
+++ linux-2.6/mm/memory.c
@@ -1947,7 +1947,7 @@ static inline void cow_user_page(struct
* fails, we just zero-fill it. Live with it.
*/
if (unlikely(!src)) {
- void *kaddr = kmap_atomic(dst, KM_USER0);
+ void *kaddr = kmap_atomic(dst);
void __user *uaddr = (void __user *)(va & PAGE_MASK);
/*
@@ -1958,7 +1958,7 @@ static inline void cow_user_page(struct
*/
if (__copy_from_user_inatomic(kaddr, uaddr, PAGE_SIZE))
memset(kaddr, 0, PAGE_SIZE);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
flush_dcache_page(dst);
} else
copy_user_highpage(dst, src, va, vma);
Index: linux-2.6/mm/shmem.c
===================================================================
--- linux-2.6.orig/mm/shmem.c
+++ linux-2.6/mm/shmem.c
@@ -141,17 +141,17 @@ static inline void shmem_dir_free(struct
static struct page **shmem_dir_map(struct page *page)
{
- return (struct page **)kmap_atomic(page, KM_USER0);
+ return (struct page **)kmap_atomic(page);
}
static inline void shmem_dir_unmap(struct page **dir)
{
- kunmap_atomic(dir, KM_USER0);
+ kunmap_atomic(dir);
}
static swp_entry_t *shmem_swp_map(struct page *page)
{
- return (swp_entry_t *)kmap_atomic(page, KM_USER1);
+ return (swp_entry_t *)kmap_atomic(page);
}
static inline void shmem_swp_balance_unmap(void)
@@ -163,12 +163,12 @@ static inline void shmem_swp_balance_unm
* What kmap_atomic of a lowmem page does depends on config
* and architecture, so pretend to kmap_atomic some lowmem page.
*/
- (void) kmap_atomic(ZERO_PAGE(0), KM_USER1);
+ (void) kmap_atomic(ZERO_PAGE(0));
}
static inline void shmem_swp_unmap(swp_entry_t *entry)
{
- kunmap_atomic(entry, KM_USER1);
+ kunmap_atomic(entry);
}
static inline struct shmem_sb_info *SHMEM_SB(struct super_block *sb)
@@ -1974,9 +1974,9 @@ static int shmem_symlink(struct inode *d
}
inode->i_mapping->a_ops = &shmem_aops;
inode->i_op = &shmem_symlink_inode_operations;
- kaddr = kmap_atomic(page, KM_USER0);
+ kaddr = kmap_atomic(page);
memcpy(kaddr, symname, len);
- kunmap_atomic(kaddr, KM_USER0);
+ kunmap_atomic(kaddr);
set_page_dirty(page);
unlock_page(page);
page_cache_release(page);
Index: linux-2.6/mm/vmalloc.c
===================================================================
--- linux-2.6.orig/mm/vmalloc.c
+++ linux-2.6/mm/vmalloc.c
@@ -1673,9 +1673,9 @@ static int aligned_vread(char *buf, char
* we can expect USER0 is not used (see vread/vwrite's
* function description)
*/
- void *map = kmap_atomic(p, KM_USER0);
+ void *map = kmap_atomic(p);
memcpy(buf, map + offset, length);
- kunmap_atomic(map, KM_USER0);
+ kunmap_atomic(map);
} else
memset(buf, 0, length);
@@ -1712,9 +1712,9 @@ static int aligned_vwrite(char *buf, cha
* we can expect USER0 is not used (see vread/vwrite's
* function description)
*/
- void *map = kmap_atomic(p, KM_USER0);
+ void *map = kmap_atomic(p);
memcpy(map + offset, buf, length);
- kunmap_atomic(map, KM_USER0);
+ kunmap_atomic(map);
}
addr += length;
buf += length;
Index: linux-2.6/net/core/kmap_skb.h
===================================================================
--- linux-2.6.orig/net/core/kmap_skb.h
+++ linux-2.6/net/core/kmap_skb.h
@@ -7,12 +7,12 @@ static inline void *kmap_skb_frag(const
local_bh_disable();
#endif
- return kmap_atomic(frag->page, KM_SKB_DATA_SOFTIRQ);
+ return kmap_atomic(frag->page);
}
static inline void kunmap_skb_frag(void *vaddr)
{
- kunmap_atomic(vaddr, KM_SKB_DATA_SOFTIRQ);
+ kunmap_atomic(vaddr);
#ifdef CONFIG_HIGHMEM
local_bh_enable();
#endif
Index: linux-2.6/net/rds/ib_recv.c
===================================================================
--- linux-2.6.orig/net/rds/ib_recv.c
+++ linux-2.6/net/rds/ib_recv.c
@@ -577,11 +577,11 @@ static struct rds_header *rds_ib_get_hea
return hdr_buff;
if (data_len <= (RDS_FRAG_SIZE - sizeof(struct rds_header))) {
- addr = kmap_atomic(recv->r_frag->f_page, KM_SOFTIRQ0);
+ addr = kmap_atomic(recv->r_frag->f_page);
memcpy(hdr_buff,
addr + recv->r_frag->f_offset + data_len,
sizeof(struct rds_header));
- kunmap_atomic(addr, KM_SOFTIRQ0);
+ kunmap_atomic(addr);
return hdr_buff;
}
@@ -589,10 +589,10 @@ static struct rds_header *rds_ib_get_hea
memmove(hdr_buff + misplaced_hdr_bytes, hdr_buff, misplaced_hdr_bytes);
- addr = kmap_atomic(recv->r_frag->f_page, KM_SOFTIRQ0);
+ addr = kmap_atomic(recv->r_frag->f_page);
memcpy(hdr_buff, addr + recv->r_frag->f_offset + data_len,
sizeof(struct rds_header) - misplaced_hdr_bytes);
- kunmap_atomic(addr, KM_SOFTIRQ0);
+ kunmap_atomic(addr);
return hdr_buff;
}
@@ -637,7 +637,7 @@ static void rds_ib_cong_recv(struct rds_
to_copy = min(RDS_FRAG_SIZE - frag_off, PAGE_SIZE - map_off);
BUG_ON(to_copy & 7); /* Must be 64bit aligned. */
- addr = kmap_atomic(frag->f_page, KM_SOFTIRQ0);
+ addr = kmap_atomic(frag->f_page);
src = addr + frag_off;
dst = (void *)map->m_page_addrs[map_page] + map_off;
@@ -647,7 +647,7 @@ static void rds_ib_cong_recv(struct rds_
uncongested |= ~(*src) & *dst;
*dst++ = *src++;
}
- kunmap_atomic(addr, KM_SOFTIRQ0);
+ kunmap_atomic(addr);
copied += to_copy;
Index: linux-2.6/net/rds/info.c
===================================================================
--- linux-2.6.orig/net/rds/info.c
+++ linux-2.6/net/rds/info.c
@@ -102,7 +102,7 @@ EXPORT_SYMBOL_GPL(rds_info_deregister_fu
void rds_info_iter_unmap(struct rds_info_iterator *iter)
{
if (iter->addr != NULL) {
- kunmap_atomic(iter->addr, KM_USER0);
+ kunmap_atomic(iter->addr);
iter->addr = NULL;
}
}
@@ -117,7 +117,7 @@ void rds_info_copy(struct rds_info_itera
while (bytes) {
if (iter->addr == NULL)
- iter->addr = kmap_atomic(*iter->pages, KM_USER0);
+ iter->addr = kmap_atomic(*iter->pages);
this = min(bytes, PAGE_SIZE - iter->offset);
@@ -132,7 +132,7 @@ void rds_info_copy(struct rds_info_itera
iter->offset += this;
if (iter->offset == PAGE_SIZE) {
- kunmap_atomic(iter->addr, KM_USER0);
+ kunmap_atomic(iter->addr);
iter->addr = NULL;
iter->offset = 0;
iter->pages++;
Index: linux-2.6/net/rds/iw_recv.c
===================================================================
--- linux-2.6.orig/net/rds/iw_recv.c
+++ linux-2.6/net/rds/iw_recv.c
@@ -596,7 +596,7 @@ static void rds_iw_cong_recv(struct rds_
to_copy = min(RDS_FRAG_SIZE - frag_off, PAGE_SIZE - map_off);
BUG_ON(to_copy & 7); /* Must be 64bit aligned. */
- addr = kmap_atomic(frag->f_page, KM_SOFTIRQ0);
+ addr = kmap_atomic(frag->f_page);
src = addr + frag_off;
dst = (void *)map->m_page_addrs[map_page] + map_off;
@@ -606,7 +606,7 @@ static void rds_iw_cong_recv(struct rds_
uncongested |= ~(*src) & *dst;
*dst++ = *src++;
}
- kunmap_atomic(addr, KM_SOFTIRQ0);
+ kunmap_atomic(addr);
copied += to_copy;
Index: linux-2.6/net/rds/loop.c
===================================================================
--- linux-2.6.orig/net/rds/loop.c
+++ linux-2.6/net/rds/loop.c
@@ -66,7 +66,7 @@ static int rds_loop_xmit(struct rds_conn
rds_message_addref(rm); /* for the inc */
rds_recv_incoming(conn, conn->c_laddr, conn->c_faddr, &rm->m_inc,
- GFP_KERNEL, KM_USER0);
+ GFP_KERNEL);
rds_send_drop_acked(conn, be64_to_cpu(rm->m_inc.i_hdr.h_sequence),
NULL);
Index: linux-2.6/net/rds/page.c
===================================================================
--- linux-2.6.orig/net/rds/page.c
+++ linux-2.6/net/rds/page.c
@@ -61,12 +61,12 @@ int rds_page_copy_user(struct page *page
else
rds_stats_add(s_copy_from_user, bytes);
- addr = kmap_atomic(page, KM_USER0);
+ addr = kmap_atomic(page);
if (to_user)
ret = __copy_to_user_inatomic(ptr, addr + offset, bytes);
else
ret = __copy_from_user_inatomic(addr + offset, ptr, bytes);
- kunmap_atomic(addr, KM_USER0);
+ kunmap_atomic(addr);
if (ret) {
addr = kmap(page);
Index: linux-2.6/net/rds/rds.h
===================================================================
--- linux-2.6.orig/net/rds/rds.h
+++ linux-2.6/net/rds/rds.h
@@ -615,7 +615,7 @@ void rds_inc_init(struct rds_incoming *i
void rds_inc_addref(struct rds_incoming *inc);
void rds_inc_put(struct rds_incoming *inc);
void rds_recv_incoming(struct rds_connection *conn, __be32 saddr, __be32 daddr,
- struct rds_incoming *inc, gfp_t gfp, enum km_type km);
+ struct rds_incoming *inc, gfp_t gfp);
int rds_recvmsg(struct kiocb *iocb, struct socket *sock, struct msghdr *msg,
size_t size, int msg_flags);
void rds_clear_recv_queue(struct rds_sock *rs);
Index: linux-2.6/net/rds/recv.c
===================================================================
--- linux-2.6.orig/net/rds/recv.c
+++ linux-2.6/net/rds/recv.c
@@ -155,7 +155,7 @@ static void rds_recv_incoming_exthdrs(st
* tell us which roles the addrs in the conn are playing for this message.
*/
void rds_recv_incoming(struct rds_connection *conn, __be32 saddr, __be32 daddr,
- struct rds_incoming *inc, gfp_t gfp, enum km_type km)
+ struct rds_incoming *inc, gfp_t gfp)
{
struct rds_sock *rs = NULL;
struct sock *sk;
Index: linux-2.6/net/rds/tcp_recv.c
===================================================================
--- linux-2.6.orig/net/rds/tcp_recv.c
+++ linux-2.6/net/rds/tcp_recv.c
@@ -270,7 +270,7 @@ out:
}
/* the caller has to hold the sock lock */
-int rds_tcp_read_sock(struct rds_connection *conn, gfp_t gfp, enum km_type km)
+int rds_tcp_read_sock(struct rds_connection *conn, gfp_t gfp)
{
struct rds_tcp_connection *tc = conn->c_transport_data;
struct socket *sock = tc->t_sock;
@@ -308,7 +308,7 @@ int rds_tcp_recv(struct rds_connection *
rdsdebug("recv worker conn %p tc %p sock %p\n", conn, tc, sock);
lock_sock(sock->sk);
- ret = rds_tcp_read_sock(conn, GFP_KERNEL, KM_USER0);
+ ret = rds_tcp_read_sock(conn, GFP_KERNEL);
release_sock(sock->sk);
return ret;
@@ -333,7 +333,7 @@ void rds_tcp_data_ready(struct sock *sk,
ready = tc->t_orig_data_ready;
rds_tcp_stats_inc(s_tcp_data_ready_calls);
- if (rds_tcp_read_sock(conn, GFP_ATOMIC, KM_SOFTIRQ0) == -ENOMEM)
+ if (rds_tcp_read_sock(conn, GFP_ATOMIC) == -ENOMEM)
queue_delayed_work(rds_wq, &conn->c_recv_w, 0);
out:
read_unlock(&sk->sk_callback_lock);
Index: linux-2.6/net/sunrpc/auth_gss/gss_krb5_wrap.c
===================================================================
--- linux-2.6.orig/net/sunrpc/auth_gss/gss_krb5_wrap.c
+++ linux-2.6/net/sunrpc/auth_gss/gss_krb5_wrap.c
@@ -56,9 +56,9 @@ gss_krb5_remove_padding(struct xdr_buf *
>>PAGE_CACHE_SHIFT;
unsigned int offset = (buf->page_base + len - 1)
& (PAGE_CACHE_SIZE - 1);
- ptr = kmap_atomic(buf->pages[last], KM_USER0);
+ ptr = kmap_atomic(buf->pages[last]);
pad = *(ptr + offset);
- kunmap_atomic(ptr, KM_USER0);
+ kunmap_atomic(ptr);
goto out;
} else
len -= buf->page_len;
Index: linux-2.6/net/sunrpc/socklib.c
===================================================================
--- linux-2.6.orig/net/sunrpc/socklib.c
+++ linux-2.6/net/sunrpc/socklib.c
@@ -112,7 +112,7 @@ ssize_t xdr_partial_copy_from_skb(struct
}
len = PAGE_CACHE_SIZE;
- kaddr = kmap_atomic(*ppage, KM_SKB_SUNRPC_DATA);
+ kaddr = kmap_atomic(*ppage);
if (base) {
len -= base;
if (pglen < len)
@@ -125,7 +125,7 @@ ssize_t xdr_partial_copy_from_skb(struct
ret = copy_actor(desc, kaddr, len);
}
flush_dcache_page(*ppage);
- kunmap_atomic(kaddr, KM_SKB_SUNRPC_DATA);
+ kunmap_atomic(kaddr);
copied += ret;
if (ret != len || !desc->count)
goto out;
Index: linux-2.6/net/sunrpc/xdr.c
===================================================================
--- linux-2.6.orig/net/sunrpc/xdr.c
+++ linux-2.6/net/sunrpc/xdr.c
@@ -214,12 +214,12 @@ _shift_data_right_pages(struct page **pa
pgto_base -= copy;
pgfrom_base -= copy;
- vto = kmap_atomic(*pgto, KM_USER0);
- vfrom = kmap_atomic(*pgfrom, KM_USER1);
+ vto = kmap_atomic(*pgto);
+ vfrom = kmap_atomic(*pgfrom);
memmove(vto + pgto_base, vfrom + pgfrom_base, copy);
flush_dcache_page(*pgto);
- kunmap_atomic(vfrom, KM_USER1);
- kunmap_atomic(vto, KM_USER0);
+ kunmap_atomic(vfrom);
+ kunmap_atomic(vto);
} while ((len -= copy) != 0);
}
@@ -249,9 +249,9 @@ _copy_to_pages(struct page **pages, size
if (copy > len)
copy = len;
- vto = kmap_atomic(*pgto, KM_USER0);
+ vto = kmap_atomic(*pgto);
memcpy(vto + pgbase, p, copy);
- kunmap_atomic(vto, KM_USER0);
+ kunmap_atomic(vto);
len -= copy;
if (len == 0)
@@ -293,9 +293,9 @@ _copy_from_pages(char *p, struct page **
if (copy > len)
copy = len;
- vfrom = kmap_atomic(*pgfrom, KM_USER0);
+ vfrom = kmap_atomic(*pgfrom);
memcpy(p, vfrom + pgbase, copy);
- kunmap_atomic(vfrom, KM_USER0);
+ kunmap_atomic(vfrom);
pgbase += copy;
if (pgbase == PAGE_CACHE_SIZE) {
Index: linux-2.6/net/sunrpc/xprtrdma/rpc_rdma.c
===================================================================
--- linux-2.6.orig/net/sunrpc/xprtrdma/rpc_rdma.c
+++ linux-2.6/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -340,7 +340,7 @@ rpcrdma_inline_pullup(struct rpc_rqst *r
memcpy(destp, srcp+rqst->rq_snd_buf.page_base, curlen);
else
memcpy(destp, srcp, curlen);
- kunmap_atomic(srcp, KM_SKB_SUNRPC_DATA);
+ kunmap_atomic(srcp);
rqst->rq_svec[0].iov_len += curlen;
destp += curlen;
copy_len -= curlen;
@@ -643,7 +643,7 @@ rpcrdma_inline_fixup(struct rpc_rqst *rq
else
memcpy(destp, srcp, curlen);
flush_dcache_page(rqst->rq_rcv_buf.pages[i]);
- kunmap_atomic(destp, KM_SKB_SUNRPC_DATA);
+ kunmap_atomic(destp);
srcp += curlen;
copy_len -= curlen;
if (copy_len == 0)
--
^ permalink raw reply [flat|nested] 13+ messages in thread
* [RFC][PATCH 4/4] mm: remove KM_type argument fallout
2009-10-08 23:22 [RFC][PATCH 0/4] stack based kmap_atomic -v2 Peter Zijlstra
` (3 preceding siblings ...)
2009-10-08 23:22 ` [RFC][PATCH 3/4] mm: remove KM_type argument Peter Zijlstra
@ 2009-10-08 23:22 ` Peter Zijlstra
2009-10-08 23:22 ` Peter Zijlstra
2009-10-09 13:05 ` [RFC][PATCH 0/4] stack based kmap_atomic -v2 Peter Zijlstra
2009-10-09 15:10 ` David Howells
6 siblings, 1 reply; 13+ messages in thread
From: Peter Zijlstra @ 2009-10-08 23:22 UTC (permalink / raw)
To: Linus Torvalds, Andrew Morton, hugh.dickins, Ingo Molnar,
David Howells <dh>
Cc: lkml, linux-arch, Peter Zijlstra, Peter Zijlstra
[-- Attachment #1: kmap-5.patch --]
[-- Type: text/plain, Size: 12190 bytes --]
Manual fixups of the previous patch
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
---
arch/arm/mm/highmem.c | 6 +++---
arch/frv/include/asm/highmem.h | 3 ++-
arch/mips/mm/highmem.c | 2 ++
arch/mn10300/include/asm/highmem.h | 1 +
arch/x86/include/asm/highmem.h | 2 +-
arch/x86/include/asm/pgtable_32.h | 8 ++------
arch/x86/kernel/cpu/perf_event.c | 5 ++---
arch/x86/mm/iomap_32.c | 16 ++--------------
drivers/net/e1000/e1000_main.c | 6 ++----
drivers/scsi/libfc/fc_fcp.c | 6 ++----
drivers/staging/hv/netvsc_drv.c | 3 +--
drivers/staging/hv/storvsc_drv.c | 11 +++++------
include/crypto/scatterwalk.h | 16 ++--------------
net/sunrpc/xprtrdma/rpc_rdma.c | 6 ++----
14 files changed, 29 insertions(+), 62 deletions(-)
Index: linux-2.6/arch/arm/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/highmem.c
+++ linux-2.6/arch/arm/mm/highmem.c
@@ -38,7 +38,7 @@ EXPORT_SYMBOL(kunmap);
void *kmap_atomic(struct page *page)
{
- unsigned int idx;
+ unsigned int idx, type;
unsigned long vaddr;
void *kmap;
@@ -76,7 +76,7 @@ EXPORT_SYMBOL(kmap_atomic);
void kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- unsigned int idx;
+ unsigned int idx, type;
type = kmap_atomic_idx_pop();
idx = type + KM_TYPE_NR * smp_processor_id();
@@ -100,7 +100,7 @@ EXPORT_SYMBOL(kunmap_atomic);
void *kmap_atomic_pfn(unsigned long pfn)
{
- unsigned int idx;
+ unsigned int idx, type;
unsigned long vaddr;
pagefault_disable();
Index: linux-2.6/arch/frv/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/frv/include/asm/highmem.h
+++ linux-2.6/arch/frv/include/asm/highmem.h
@@ -115,6 +115,7 @@ extern struct page *kmap_atomic_to_page(
static inline void *kmap_atomic(struct page *page)
{
unsigned long paddr;
+ int type;
pagefault_disable();
type = kmap_atomic_idx_push();
@@ -154,7 +155,7 @@ do { \
static inline void kunmap_atomic(void *kvaddr)
{
- type = kmap_atomic_idx_pop();
+ int type = kmap_atomic_idx_pop();
switch (type) {
case 0: __kunmap_atomic_primary(0, 2); break;
case 1: __kunmap_atomic_primary(1, 3); break;
Index: linux-2.6/arch/mips/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/mips/mm/highmem.c
+++ linux-2.6/arch/mips/mm/highmem.c
@@ -44,6 +44,7 @@ void *__kmap_atomic(struct page *page)
{
enum fixed_addresses idx;
unsigned long vaddr;
+ int type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
@@ -101,6 +102,7 @@ void *kmap_atomic_pfn(unsigned long pfn)
{
enum fixed_addresses idx;
unsigned long vaddr;
+ int type;
pagefault_disable();
Index: linux-2.6/arch/x86/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/highmem.h
+++ linux-2.6/arch/x86/include/asm/highmem.h
@@ -67,7 +67,7 @@ void *kmap_atomic_prot_pfn(unsigned long
struct page *kmap_atomic_to_page(void *ptr);
#ifndef CONFIG_PARAVIRT
-#define kmap_atomic_pte(page, type) kmap_atomic(page, type)
+#define kmap_atomic_pte(page) kmap_atomic(page)
#endif
#define flush_cache_kmaps() do { } while (0)
Index: linux-2.6/arch/x86/include/asm/pgtable_32.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/pgtable_32.h
+++ linux-2.6/arch/x86/include/asm/pgtable_32.h
@@ -49,17 +49,13 @@ extern void set_pmd_pfn(unsigned long, u
#endif
#if defined(CONFIG_HIGHPTE)
-#define __KM_PTE \
- (in_nmi() ? KM_NMI_PTE : \
- in_irq() ? KM_IRQ_PTE : \
- KM_PTE0)
#define pte_offset_map(dir, address) \
- ((pte_t *)kmap_atomic_pte(pmd_page(*(dir)), __KM_PTE) + \
+ ((pte_t *)kmap_atomic_pte(pmd_page(*(dir))) + \
pte_index((address)))
#define pte_offset_map_nested(dir, address) \
((pte_t *)kmap_atomic_pte(pmd_page(*(dir))) + \
pte_index((address)))
-#define pte_unmap(pte) kunmap_atomic((pte), __KM_PTE)
+#define pte_unmap(pte) kunmap_atomic((pte))
#define pte_unmap_nested(pte) kunmap_atomic((pte))
#else
#define pte_offset_map(dir, address) \
Index: linux-2.6/arch/x86/mm/iomap_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/iomap_32.c
+++ linux-2.6/arch/x86/mm/iomap_32.c
@@ -70,25 +70,13 @@ iomap_atomic_prot_pfn(unsigned long pfn,
if (!pat_enabled && pgprot_val(prot) == pgprot_val(PAGE_KERNEL_WC))
prot = PAGE_KERNEL_UC_MINUS;
- return kmap_atomic_prot_pfn(pfn, type, prot);
+ return kmap_atomic_prot_pfn(pfn, prot);
}
EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn);
void
iounmap_atomic(void *kvaddr)
{
- unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
-
- /*
- * Force other mappings to Oops if they'll try to access this pte
- * without first remap it. Keeping stale mappings around is a bad idea
- * also, in case the page changes cacheability attributes or becomes
- * a protected page in a hypervisor.
- */
- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx))
- kpte_clear_flush(kmap_pte-idx, vaddr);
-
- pagefault_enable();
+ kunmap_atomic(kvaddr);
}
EXPORT_SYMBOL_GPL(iounmap_atomic);
Index: linux-2.6/arch/mn10300/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/mn10300/include/asm/highmem.h
+++ linux-2.6/arch/mn10300/include/asm/highmem.h
@@ -74,6 +74,7 @@ static inline unsigned long kmap_atomic(
{
enum fixed_addresses idx;
unsigned long vaddr;
+ int type;
if (page < highmem_start_page)
return page_address(page);
Index: linux-2.6/drivers/scsi/libfc/fc_fcp.c
===================================================================
--- linux-2.6.orig/drivers/scsi/libfc/fc_fcp.c
+++ linux-2.6/drivers/scsi/libfc/fc_fcp.c
@@ -377,8 +377,7 @@ static void fc_fcp_recv_data(struct fc_f
off = offset + sg->offset;
sg_bytes = min(sg_bytes, (size_t)
(PAGE_SIZE - (off & ~PAGE_MASK)));
- page_addr = kmap_atomic(sg_page(sg) + (off >> PAGE_SHIFT),
- KM_SOFTIRQ0);
+ page_addr = kmap_atomic(sg_page(sg) + (off >> PAGE_SHIFT));
if (!page_addr)
break; /* XXX panic? */
@@ -560,8 +559,7 @@ static int fc_fcp_send_data(struct fc_fc
sg_bytes = min(sg_bytes, (size_t) (PAGE_SIZE -
(off & ~PAGE_MASK)));
page_addr = kmap_atomic(sg_page(sg) +
- (off >> PAGE_SHIFT),
- KM_SOFTIRQ0);
+ (off >> PAGE_SHIFT));
memcpy(data, (char *)page_addr + (off & ~PAGE_MASK),
sg_bytes);
kunmap_atomic(page_addr);
Index: linux-2.6/drivers/staging/hv/netvsc_drv.c
===================================================================
--- linux-2.6.orig/drivers/staging/hv/netvsc_drv.c
+++ linux-2.6/drivers/staging/hv/netvsc_drv.c
@@ -342,8 +342,7 @@ static int netvsc_recv_callback(struct h
* hv_netvsc_packet cannot be deallocated
*/
for (i = 0; i < packet->PageBufferCount; i++) {
- data = kmap_atomic(pfn_to_page(packet->PageBuffers[i].Pfn),
- KM_IRQ1);
+ data = kmap_atomic(pfn_to_page(packet->PageBuffers[i].Pfn));
data = (void *)(unsigned long)data +
packet->PageBuffers[i].Offset;
Index: linux-2.6/drivers/staging/hv/storvsc_drv.c
===================================================================
--- linux-2.6.orig/drivers/staging/hv/storvsc_drv.c
+++ linux-2.6/drivers/staging/hv/storvsc_drv.c
@@ -525,8 +525,8 @@ static unsigned int copy_to_bounce_buffe
local_irq_save(flags);
for (i = 0; i < orig_sgl_count; i++) {
- src_addr = (unsigned long)kmap_atomic(sg_page((&orig_sgl[i])),
- KM_IRQ0) + orig_sgl[i].offset;
+ src_addr = (unsigned long)kmap_atomic(sg_page((&orig_sgl[i])))
+ + orig_sgl[i].offset;
src = src_addr;
srclen = orig_sgl[i].length;
@@ -587,8 +587,8 @@ static unsigned int copy_from_bounce_buf
local_irq_save(flags);
for (i = 0; i < orig_sgl_count; i++) {
- dest_addr = (unsigned long)kmap_atomic(sg_page((&orig_sgl[i])),
- KM_IRQ0) + orig_sgl[i].offset;
+ dest_addr = (unsigned long)kmap_atomic(sg_page((&orig_sgl[i])))
+ + orig_sgl[i].offset;
dest = dest_addr;
destlen = orig_sgl[i].length;
ASSERT(orig_sgl[i].offset + orig_sgl[i].length <= PAGE_SIZE);
@@ -622,8 +622,7 @@ static unsigned int copy_from_bounce_buf
}
}
- kunmap_atomic((void *)(dest_addr - orig_sgl[i].offset),
- KM_IRQ0);
+ kunmap_atomic((void *)(dest_addr - orig_sgl[i].offset));
}
local_irq_restore(flags);
Index: linux-2.6/net/sunrpc/xprtrdma/rpc_rdma.c
===================================================================
--- linux-2.6.orig/net/sunrpc/xprtrdma/rpc_rdma.c
+++ linux-2.6/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -334,8 +334,7 @@ rpcrdma_inline_pullup(struct rpc_rqst *r
curlen = copy_len;
dprintk("RPC: %s: page %d destp 0x%p len %d curlen %d\n",
__func__, i, destp, copy_len, curlen);
- srcp = kmap_atomic(rqst->rq_snd_buf.pages[i],
- KM_SKB_SUNRPC_DATA);
+ srcp = kmap_atomic(rqst->rq_snd_buf.pages[i])
if (i == 0)
memcpy(destp, srcp+rqst->rq_snd_buf.page_base, curlen);
else
@@ -635,8 +634,7 @@ rpcrdma_inline_fixup(struct rpc_rqst *rq
dprintk("RPC: %s: page %d"
" srcp 0x%p len %d curlen %d\n",
__func__, i, srcp, copy_len, curlen);
- destp = kmap_atomic(rqst->rq_rcv_buf.pages[i],
- KM_SKB_SUNRPC_DATA);
+ destp = kmap_atomic(rqst->rq_rcv_buf.pages[i]);
if (i == 0)
memcpy(destp + rqst->rq_rcv_buf.page_base,
srcp, curlen);
Index: linux-2.6/arch/x86/kernel/cpu/perf_event.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/cpu/perf_event.c
+++ linux-2.6/arch/x86/kernel/cpu/perf_event.c
@@ -2190,7 +2190,6 @@ static unsigned long
copy_from_user_nmi(void *to, const void __user *from, unsigned long n)
{
unsigned long offset, addr = (unsigned long)from;
- int type = in_nmi() ? KM_NMI : KM_IRQ0;
unsigned long size, len = 0;
struct page *page;
void *map;
@@ -2204,9 +2203,9 @@ copy_from_user_nmi(void *to, const void
offset = addr & (PAGE_SIZE - 1);
size = min(PAGE_SIZE - offset, n - len);
- map = kmap_atomic(page, type);
+ map = kmap_atomic(page);
memcpy(to, map+offset, size);
- kunmap_atomic(map, type);
+ kunmap_atomic(map);
put_page(page);
len += size;
Index: linux-2.6/drivers/net/e1000/e1000_main.c
===================================================================
--- linux-2.6.orig/drivers/net/e1000/e1000_main.c
+++ linux-2.6/drivers/net/e1000/e1000_main.c
@@ -3705,11 +3705,9 @@ static bool e1000_clean_jumbo_rx_irq(str
if (length <= copybreak &&
skb_tailroom(skb) >= length) {
u8 *vaddr;
- vaddr = kmap_atomic(buffer_info->page,
- KM_SKB_DATA_SOFTIRQ);
+ vaddr = kmap_atomic(buffer_info->page);
memcpy(skb_tail_pointer(skb), vaddr, length);
- kunmap_atomic(vaddr,
- KM_SKB_DATA_SOFTIRQ);
+ kunmap_atomic(vaddr);
/* re-use the page, so don't erase
* buffer_info->page */
skb_put(skb, length);
Index: linux-2.6/include/crypto/scatterwalk.h
===================================================================
--- linux-2.6.orig/include/crypto/scatterwalk.h
+++ linux-2.6/include/crypto/scatterwalk.h
@@ -25,26 +25,14 @@
#include <linux/scatterlist.h>
#include <linux/sched.h>
-static inline enum km_type crypto_kmap_type(int out)
-{
- enum km_type type;
-
- if (in_softirq())
- type = out * (KM_SOFTIRQ1 - KM_SOFTIRQ0) + KM_SOFTIRQ0;
- else
- type = out * (KM_USER1 - KM_USER0) + KM_USER0;
-
- return type;
-}
-
static inline void *crypto_kmap(struct page *page, int out)
{
- return kmap_atomic(page, crypto_kmap_type(out));
+ return kmap_atomic(page);
}
static inline void crypto_kunmap(void *vaddr, int out)
{
- kunmap_atomic(vaddr, crypto_kmap_type(out));
+ kunmap_atomic(vaddr);
}
static inline void crypto_yield(u32 flags)
--
^ permalink raw reply [flat|nested] 13+ messages in thread
* [RFC][PATCH 4/4] mm: remove KM_type argument fallout
2009-10-08 23:22 ` [RFC][PATCH 4/4] mm: remove KM_type argument fallout Peter Zijlstra
@ 2009-10-08 23:22 ` Peter Zijlstra
0 siblings, 0 replies; 13+ messages in thread
From: Peter Zijlstra @ 2009-10-08 23:22 UTC (permalink / raw)
To: Linus Torvalds, Andrew Morton, hugh.dickins, Ingo Molnar,
David Howells
Cc: lkml, linux-arch, Peter Zijlstra, Peter Zijlstra
[-- Attachment #1: kmap-5.patch --]
[-- Type: text/plain, Size: 12191 bytes --]
Manual fixups of the previous patch
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
---
arch/arm/mm/highmem.c | 6 +++---
arch/frv/include/asm/highmem.h | 3 ++-
arch/mips/mm/highmem.c | 2 ++
arch/mn10300/include/asm/highmem.h | 1 +
arch/x86/include/asm/highmem.h | 2 +-
arch/x86/include/asm/pgtable_32.h | 8 ++------
arch/x86/kernel/cpu/perf_event.c | 5 ++---
arch/x86/mm/iomap_32.c | 16 ++--------------
drivers/net/e1000/e1000_main.c | 6 ++----
drivers/scsi/libfc/fc_fcp.c | 6 ++----
drivers/staging/hv/netvsc_drv.c | 3 +--
drivers/staging/hv/storvsc_drv.c | 11 +++++------
include/crypto/scatterwalk.h | 16 ++--------------
net/sunrpc/xprtrdma/rpc_rdma.c | 6 ++----
14 files changed, 29 insertions(+), 62 deletions(-)
Index: linux-2.6/arch/arm/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/arm/mm/highmem.c
+++ linux-2.6/arch/arm/mm/highmem.c
@@ -38,7 +38,7 @@ EXPORT_SYMBOL(kunmap);
void *kmap_atomic(struct page *page)
{
- unsigned int idx;
+ unsigned int idx, type;
unsigned long vaddr;
void *kmap;
@@ -76,7 +76,7 @@ EXPORT_SYMBOL(kmap_atomic);
void kunmap_atomic(void *kvaddr)
{
unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- unsigned int idx;
+ unsigned int idx, type;
type = kmap_atomic_idx_pop();
idx = type + KM_TYPE_NR * smp_processor_id();
@@ -100,7 +100,7 @@ EXPORT_SYMBOL(kunmap_atomic);
void *kmap_atomic_pfn(unsigned long pfn)
{
- unsigned int idx;
+ unsigned int idx, type;
unsigned long vaddr;
pagefault_disable();
Index: linux-2.6/arch/frv/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/frv/include/asm/highmem.h
+++ linux-2.6/arch/frv/include/asm/highmem.h
@@ -115,6 +115,7 @@ extern struct page *kmap_atomic_to_page(
static inline void *kmap_atomic(struct page *page)
{
unsigned long paddr;
+ int type;
pagefault_disable();
type = kmap_atomic_idx_push();
@@ -154,7 +155,7 @@ do { \
static inline void kunmap_atomic(void *kvaddr)
{
- type = kmap_atomic_idx_pop();
+ int type = kmap_atomic_idx_pop();
switch (type) {
case 0: __kunmap_atomic_primary(0, 2); break;
case 1: __kunmap_atomic_primary(1, 3); break;
Index: linux-2.6/arch/mips/mm/highmem.c
===================================================================
--- linux-2.6.orig/arch/mips/mm/highmem.c
+++ linux-2.6/arch/mips/mm/highmem.c
@@ -44,6 +44,7 @@ void *__kmap_atomic(struct page *page)
{
enum fixed_addresses idx;
unsigned long vaddr;
+ int type;
/* even !CONFIG_PREEMPT needs this, for in_atomic in do_page_fault */
pagefault_disable();
@@ -101,6 +102,7 @@ void *kmap_atomic_pfn(unsigned long pfn)
{
enum fixed_addresses idx;
unsigned long vaddr;
+ int type;
pagefault_disable();
Index: linux-2.6/arch/x86/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/highmem.h
+++ linux-2.6/arch/x86/include/asm/highmem.h
@@ -67,7 +67,7 @@ void *kmap_atomic_prot_pfn(unsigned long
struct page *kmap_atomic_to_page(void *ptr);
#ifndef CONFIG_PARAVIRT
-#define kmap_atomic_pte(page, type) kmap_atomic(page, type)
+#define kmap_atomic_pte(page) kmap_atomic(page)
#endif
#define flush_cache_kmaps() do { } while (0)
Index: linux-2.6/arch/x86/include/asm/pgtable_32.h
===================================================================
--- linux-2.6.orig/arch/x86/include/asm/pgtable_32.h
+++ linux-2.6/arch/x86/include/asm/pgtable_32.h
@@ -49,17 +49,13 @@ extern void set_pmd_pfn(unsigned long, u
#endif
#if defined(CONFIG_HIGHPTE)
-#define __KM_PTE \
- (in_nmi() ? KM_NMI_PTE : \
- in_irq() ? KM_IRQ_PTE : \
- KM_PTE0)
#define pte_offset_map(dir, address) \
- ((pte_t *)kmap_atomic_pte(pmd_page(*(dir)), __KM_PTE) + \
+ ((pte_t *)kmap_atomic_pte(pmd_page(*(dir))) + \
pte_index((address)))
#define pte_offset_map_nested(dir, address) \
((pte_t *)kmap_atomic_pte(pmd_page(*(dir))) + \
pte_index((address)))
-#define pte_unmap(pte) kunmap_atomic((pte), __KM_PTE)
+#define pte_unmap(pte) kunmap_atomic((pte))
#define pte_unmap_nested(pte) kunmap_atomic((pte))
#else
#define pte_offset_map(dir, address) \
Index: linux-2.6/arch/x86/mm/iomap_32.c
===================================================================
--- linux-2.6.orig/arch/x86/mm/iomap_32.c
+++ linux-2.6/arch/x86/mm/iomap_32.c
@@ -70,25 +70,13 @@ iomap_atomic_prot_pfn(unsigned long pfn,
if (!pat_enabled && pgprot_val(prot) == pgprot_val(PAGE_KERNEL_WC))
prot = PAGE_KERNEL_UC_MINUS;
- return kmap_atomic_prot_pfn(pfn, type, prot);
+ return kmap_atomic_prot_pfn(pfn, prot);
}
EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn);
void
iounmap_atomic(void *kvaddr)
{
- unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
- enum fixed_addresses idx = type + KM_TYPE_NR*smp_processor_id();
-
- /*
- * Force other mappings to Oops if they'll try to access this pte
- * without first remap it. Keeping stale mappings around is a bad idea
- * also, in case the page changes cacheability attributes or becomes
- * a protected page in a hypervisor.
- */
- if (vaddr == __fix_to_virt(FIX_KMAP_BEGIN+idx))
- kpte_clear_flush(kmap_pte-idx, vaddr);
-
- pagefault_enable();
+ kunmap_atomic(kvaddr);
}
EXPORT_SYMBOL_GPL(iounmap_atomic);
Index: linux-2.6/arch/mn10300/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/mn10300/include/asm/highmem.h
+++ linux-2.6/arch/mn10300/include/asm/highmem.h
@@ -74,6 +74,7 @@ static inline unsigned long kmap_atomic(
{
enum fixed_addresses idx;
unsigned long vaddr;
+ int type;
if (page < highmem_start_page)
return page_address(page);
Index: linux-2.6/drivers/scsi/libfc/fc_fcp.c
===================================================================
--- linux-2.6.orig/drivers/scsi/libfc/fc_fcp.c
+++ linux-2.6/drivers/scsi/libfc/fc_fcp.c
@@ -377,8 +377,7 @@ static void fc_fcp_recv_data(struct fc_f
off = offset + sg->offset;
sg_bytes = min(sg_bytes, (size_t)
(PAGE_SIZE - (off & ~PAGE_MASK)));
- page_addr = kmap_atomic(sg_page(sg) + (off >> PAGE_SHIFT),
- KM_SOFTIRQ0);
+ page_addr = kmap_atomic(sg_page(sg) + (off >> PAGE_SHIFT));
if (!page_addr)
break; /* XXX panic? */
@@ -560,8 +559,7 @@ static int fc_fcp_send_data(struct fc_fc
sg_bytes = min(sg_bytes, (size_t) (PAGE_SIZE -
(off & ~PAGE_MASK)));
page_addr = kmap_atomic(sg_page(sg) +
- (off >> PAGE_SHIFT),
- KM_SOFTIRQ0);
+ (off >> PAGE_SHIFT));
memcpy(data, (char *)page_addr + (off & ~PAGE_MASK),
sg_bytes);
kunmap_atomic(page_addr);
Index: linux-2.6/drivers/staging/hv/netvsc_drv.c
===================================================================
--- linux-2.6.orig/drivers/staging/hv/netvsc_drv.c
+++ linux-2.6/drivers/staging/hv/netvsc_drv.c
@@ -342,8 +342,7 @@ static int netvsc_recv_callback(struct h
* hv_netvsc_packet cannot be deallocated
*/
for (i = 0; i < packet->PageBufferCount; i++) {
- data = kmap_atomic(pfn_to_page(packet->PageBuffers[i].Pfn),
- KM_IRQ1);
+ data = kmap_atomic(pfn_to_page(packet->PageBuffers[i].Pfn));
data = (void *)(unsigned long)data +
packet->PageBuffers[i].Offset;
Index: linux-2.6/drivers/staging/hv/storvsc_drv.c
===================================================================
--- linux-2.6.orig/drivers/staging/hv/storvsc_drv.c
+++ linux-2.6/drivers/staging/hv/storvsc_drv.c
@@ -525,8 +525,8 @@ static unsigned int copy_to_bounce_buffe
local_irq_save(flags);
for (i = 0; i < orig_sgl_count; i++) {
- src_addr = (unsigned long)kmap_atomic(sg_page((&orig_sgl[i])),
- KM_IRQ0) + orig_sgl[i].offset;
+ src_addr = (unsigned long)kmap_atomic(sg_page((&orig_sgl[i])))
+ + orig_sgl[i].offset;
src = src_addr;
srclen = orig_sgl[i].length;
@@ -587,8 +587,8 @@ static unsigned int copy_from_bounce_buf
local_irq_save(flags);
for (i = 0; i < orig_sgl_count; i++) {
- dest_addr = (unsigned long)kmap_atomic(sg_page((&orig_sgl[i])),
- KM_IRQ0) + orig_sgl[i].offset;
+ dest_addr = (unsigned long)kmap_atomic(sg_page((&orig_sgl[i])))
+ + orig_sgl[i].offset;
dest = dest_addr;
destlen = orig_sgl[i].length;
ASSERT(orig_sgl[i].offset + orig_sgl[i].length <= PAGE_SIZE);
@@ -622,8 +622,7 @@ static unsigned int copy_from_bounce_buf
}
}
- kunmap_atomic((void *)(dest_addr - orig_sgl[i].offset),
- KM_IRQ0);
+ kunmap_atomic((void *)(dest_addr - orig_sgl[i].offset));
}
local_irq_restore(flags);
Index: linux-2.6/net/sunrpc/xprtrdma/rpc_rdma.c
===================================================================
--- linux-2.6.orig/net/sunrpc/xprtrdma/rpc_rdma.c
+++ linux-2.6/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -334,8 +334,7 @@ rpcrdma_inline_pullup(struct rpc_rqst *r
curlen = copy_len;
dprintk("RPC: %s: page %d destp 0x%p len %d curlen %d\n",
__func__, i, destp, copy_len, curlen);
- srcp = kmap_atomic(rqst->rq_snd_buf.pages[i],
- KM_SKB_SUNRPC_DATA);
+ srcp = kmap_atomic(rqst->rq_snd_buf.pages[i])
if (i == 0)
memcpy(destp, srcp+rqst->rq_snd_buf.page_base, curlen);
else
@@ -635,8 +634,7 @@ rpcrdma_inline_fixup(struct rpc_rqst *rq
dprintk("RPC: %s: page %d"
" srcp 0x%p len %d curlen %d\n",
__func__, i, srcp, copy_len, curlen);
- destp = kmap_atomic(rqst->rq_rcv_buf.pages[i],
- KM_SKB_SUNRPC_DATA);
+ destp = kmap_atomic(rqst->rq_rcv_buf.pages[i]);
if (i == 0)
memcpy(destp + rqst->rq_rcv_buf.page_base,
srcp, curlen);
Index: linux-2.6/arch/x86/kernel/cpu/perf_event.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/cpu/perf_event.c
+++ linux-2.6/arch/x86/kernel/cpu/perf_event.c
@@ -2190,7 +2190,6 @@ static unsigned long
copy_from_user_nmi(void *to, const void __user *from, unsigned long n)
{
unsigned long offset, addr = (unsigned long)from;
- int type = in_nmi() ? KM_NMI : KM_IRQ0;
unsigned long size, len = 0;
struct page *page;
void *map;
@@ -2204,9 +2203,9 @@ copy_from_user_nmi(void *to, const void
offset = addr & (PAGE_SIZE - 1);
size = min(PAGE_SIZE - offset, n - len);
- map = kmap_atomic(page, type);
+ map = kmap_atomic(page);
memcpy(to, map+offset, size);
- kunmap_atomic(map, type);
+ kunmap_atomic(map);
put_page(page);
len += size;
Index: linux-2.6/drivers/net/e1000/e1000_main.c
===================================================================
--- linux-2.6.orig/drivers/net/e1000/e1000_main.c
+++ linux-2.6/drivers/net/e1000/e1000_main.c
@@ -3705,11 +3705,9 @@ static bool e1000_clean_jumbo_rx_irq(str
if (length <= copybreak &&
skb_tailroom(skb) >= length) {
u8 *vaddr;
- vaddr = kmap_atomic(buffer_info->page,
- KM_SKB_DATA_SOFTIRQ);
+ vaddr = kmap_atomic(buffer_info->page);
memcpy(skb_tail_pointer(skb), vaddr, length);
- kunmap_atomic(vaddr,
- KM_SKB_DATA_SOFTIRQ);
+ kunmap_atomic(vaddr);
/* re-use the page, so don't erase
* buffer_info->page */
skb_put(skb, length);
Index: linux-2.6/include/crypto/scatterwalk.h
===================================================================
--- linux-2.6.orig/include/crypto/scatterwalk.h
+++ linux-2.6/include/crypto/scatterwalk.h
@@ -25,26 +25,14 @@
#include <linux/scatterlist.h>
#include <linux/sched.h>
-static inline enum km_type crypto_kmap_type(int out)
-{
- enum km_type type;
-
- if (in_softirq())
- type = out * (KM_SOFTIRQ1 - KM_SOFTIRQ0) + KM_SOFTIRQ0;
- else
- type = out * (KM_USER1 - KM_USER0) + KM_USER0;
-
- return type;
-}
-
static inline void *crypto_kmap(struct page *page, int out)
{
- return kmap_atomic(page, crypto_kmap_type(out));
+ return kmap_atomic(page);
}
static inline void crypto_kunmap(void *vaddr, int out)
{
- kunmap_atomic(vaddr, crypto_kmap_type(out));
+ kunmap_atomic(vaddr);
}
static inline void crypto_yield(u32 flags)
--
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [RFC][PATCH 0/4] stack based kmap_atomic -v2
2009-10-08 23:22 [RFC][PATCH 0/4] stack based kmap_atomic -v2 Peter Zijlstra
` (4 preceding siblings ...)
2009-10-08 23:22 ` [RFC][PATCH 4/4] mm: remove KM_type argument fallout Peter Zijlstra
@ 2009-10-09 13:05 ` Peter Zijlstra
2009-10-09 15:10 ` David Howells
6 siblings, 0 replies; 13+ messages in thread
From: Peter Zijlstra @ 2009-10-09 13:05 UTC (permalink / raw)
To: Linus Torvalds
Cc: Andrew Morton, hugh.dickins, Ingo Molnar, David Howells, lkml,
linux-arch
On Fri, 2009-10-09 at 01:22 +0200, Peter Zijlstra wrote:
>
> Maybe FRV can do a kind of kmap-stack switch on (soft)irq enter/exit
> in order to stay below 5 entries.
David, would something like the below work for you?
You'd need to disallow nested hardirqs, but I'm not sure FRV suffers
that particular issue?
---
Index: linux-2.6/include/linux/highmem.h
===================================================================
--- linux-2.6.orig/include/linux/highmem.h
+++ linux-2.6/include/linux/highmem.h
@@ -83,6 +83,30 @@ static inline void *kmap_atomic(struct p
#endif /* CONFIG_HIGHMEM */
+enum kmap_context {
+ KMAP_USER = 0,
+ KMAP_SOFTIRQ,
+ KMAP_IRQ,
+ KMAP_NMI,
+ KMAP_CONTEXT_NR,
+}
+
+#if !defined(CONFIG_HIGHMEM) || !defined(ARCH_HAS_KMAP_SWITCH)
+/*
+ * Routines the arch can use to save/restore kmap_atomic stacks.
+ *
+ * This can be useful when an arch has limited kmap_atomic slots
+ * and wants to deal with context nesting.
+ */
+static inline void kmap_atomic_save(enum kmap_context kctx)
+{
+}
+
+static inline void kmap_atomic_restore(enum kmap_context kctx)
+{
+}
+#endif
+
/* when CONFIG_HIGHMEM is not set these will be plain clear/copy_page */
#ifndef clear_user_highpage
static inline void clear_user_highpage(struct page *page, unsigned long vaddr)
Index: linux-2.6/kernel/softirq.c
===================================================================
--- linux-2.6.orig/kernel/softirq.c
+++ linux-2.6/kernel/softirq.c
@@ -283,6 +283,8 @@ void irq_enter(void)
tick_check_idle(cpu);
} else
__irq_enter();
+
+ kmap_atomic_save(KMAP_IRQ);
}
#ifdef __ARCH_IRQ_EXIT_IRQS_DISABLED
@@ -296,11 +298,15 @@ void irq_enter(void)
*/
void irq_exit(void)
{
+ kmap_atomic_restore(KMAP_IRQ);
account_system_vtime(current);
trace_hardirq_exit();
sub_preempt_count(IRQ_EXIT_OFFSET);
- if (!in_interrupt() && local_softirq_pending())
+ if (!in_interrupt() && local_softirq_pending()) {
+ kmap_atomic_save(KMAP_SOFTIRQ);
invoke_softirq();
+ kmap_atomic_restore(KMAP_SOFTIRQ);
+ }
#ifdef CONFIG_NO_HZ
/* Make sure that timer wheel updates are propagated */
Index: linux-2.6/arch/frv/include/asm/highmem.h
===================================================================
--- linux-2.6.orig/arch/frv/include/asm/highmem.h
+++ linux-2.6/arch/frv/include/asm/highmem.h
@@ -121,20 +121,13 @@ static inline void *kmap_atomic(struct p
type = kmap_atomic_idx_push();
paddr = page_to_phys(page);
- switch (type) {
- case 0: return __kmap_atomic_primary(0, paddr, 2);
- case 1: return __kmap_atomic_primary(1, paddr, 3);
- case 2: return __kmap_atomic_primary(2, paddr, 4);
- case 3: return __kmap_atomic_primary(3, paddr, 5);
+ switch (type + 4) {
case 4: return __kmap_atomic_primary(4, paddr, 6);
case 5: return __kmap_atomic_primary(5, paddr, 7);
case 6: return __kmap_atomic_primary(6, paddr, 8);
case 7: return __kmap_atomic_primary(7, paddr, 9);
case 8: return __kmap_atomic_primary(8, paddr, 10);
- case 9 ... 9 + NR_TLB_LINES - 1:
- return __kmap_atomic_secondary(type - 9, paddr);
-
default:
BUG();
return NULL;
@@ -156,27 +149,53 @@ do { \
static inline void kunmap_atomic(void *kvaddr)
{
int type = kmap_atomic_idx_pop();
- switch (type) {
- case 0: __kunmap_atomic_primary(0, 2); break;
- case 1: __kunmap_atomic_primary(1, 3); break;
- case 2: __kunmap_atomic_primary(2, 4); break;
- case 3: __kunmap_atomic_primary(3, 5); break;
+ switch (type+4) {
case 4: __kunmap_atomic_primary(4, 6); break;
case 5: __kunmap_atomic_primary(5, 7); break;
case 6: __kunmap_atomic_primary(6, 8); break;
case 7: __kunmap_atomic_primary(7, 9); break;
case 8: __kunmap_atomic_primary(8, 10); break;
- case 9 ... 9 + NR_TLB_LINES - 1:
- __kunmap_atomic_secondary(type - 9, kvaddr);
- break;
-
default:
BUG();
}
pagefault_enable();
}
+#define ARCH_HAS_KMAP_SWITCH
+
+struct kmap_atomic_context {
+ pte_t maps[KM_TYPE_NR];
+ int nr;
+};
+
+DECLARE_PER_CPU(struct kmap_atomic_context, kmap_ctxs[KMAP_CONTEXT_NR]);
+
+static inline void kmap_atomic_save(enum kmap_context kctx)
+{
+ struct kmap_atomic_context *kac = &__get_cpu_var(kmap_ctxs)[kctx];
+ int *idx = &__get_cpu_var(__kmap_atomic_idx);
+
+ kac->nr = *idx;
+
+ if (*idx) {
+ /* XXX save maps */ ;
+ *idx = 0;
+ }
+}
+
+static inline void kmap_atomic_restore(enum kmap_context kctx)
+{
+ struct kmap_atomic_context *kac = &__get_cpu_var(kmap_ctxs)[kctx];
+ int *idx = &__get_cpu_var(__kmap_atomic_idx);
+
+ *idx = kac->nr;
+ if (*idx) {
+ /* XXX restore maps */ ;
+ }
+}
+
+
#endif /* !__ASSEMBLY__ */
#endif /* __KERNEL__ */
Index: linux-2.6/arch/frv/include/asm/kmap_types.h
===================================================================
--- linux-2.6.orig/arch/frv/include/asm/kmap_types.h
+++ linux-2.6/arch/frv/include/asm/kmap_types.h
@@ -3,27 +3,8 @@
#define _ASM_KMAP_TYPES_H
enum km_type {
- /* arch specific kmaps - change the numbers attached to these at your peril */
- __KM_CACHE, /* cache flush page attachment point */
- __KM_PGD, /* current page directory */
- __KM_ITLB_PTD, /* current instruction TLB miss page table lookup */
- __KM_DTLB_PTD, /* current data TLB miss page table lookup */
-
/* general kmaps */
- KM_BOUNCE_READ,
- KM_SKB_SUNRPC_DATA,
- KM_SKB_DATA_SOFTIRQ,
- KM_USER0,
- KM_USER1,
- KM_BIO_SRC_IRQ,
- KM_BIO_DST_IRQ,
- KM_PTE0,
- KM_PTE1,
- KM_IRQ0,
- KM_IRQ1,
- KM_SOFTIRQ0,
- KM_SOFTIRQ1,
- KM_TYPE_NR
+ KM_TYPE_NR = 5
};
#endif
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [RFC][PATCH 0/4] stack based kmap_atomic -v2
2009-10-08 23:22 [RFC][PATCH 0/4] stack based kmap_atomic -v2 Peter Zijlstra
` (5 preceding siblings ...)
2009-10-09 13:05 ` [RFC][PATCH 0/4] stack based kmap_atomic -v2 Peter Zijlstra
@ 2009-10-09 15:10 ` David Howells
6 siblings, 0 replies; 13+ messages in thread
From: David Howells @ 2009-10-09 15:10 UTC (permalink / raw)
To: Peter Zijlstra
Cc: dhowells, Linus Torvalds, Andrew Morton, hugh.dickins,
Ingo Molnar, lkml, linux-arch
Peter Zijlstra <peterz@infradead.org> wrote:
> type = kmap_atomic_idx_push();
> ...
> + switch (type + 4) {
This bit is the bit I particularly dislike. 'type' is not fixed at compile
time, which means that the switch-statement cannot be optimised down. With
your original patch, for example, the following code seems to simplify quite
nicely from:
int test_kmap(struct page *page)
{
int *p, q;
p = kmap_atomic(page, KM_USER0);
q = *p;
kunmap_atomic(page, KM_USER0);
return q;
}
to:
int test_kmap(struct page *page)
{
int *p, q;
p = kmap_atomic(page);
q = *p;
kunmap_atomic(page);
return q;
}
but, the assembly goes from:
000002a0 <test_kmap>:
2a0: 82 40 1f f0 addi sp,-16,sp
2a4: 05 48 10 00 sti.p fp,@(sp,0)
2a8: 84 88 10 00 ori sp,0,fp
2ac: 88 0d 01 c5 movsg lr,gr5
2b0: 8b 48 20 08 sti gr5,@(fp,8)
2b4: 88 c8 f0 14 ldi @(gr15,20),gr4
2b8: 88 40 40 01 addi gr4,1,gr4
2bc: 89 48 f0 14 sti gr4,@(gr15,20)
2c0: 88 c9 00 00 ldi @(gr16,0),gr4
2c4: 10 00 81 04 sub.p gr8,gr4,gr8
2c8: 88 fc 0c 09 setlos 0xc09,gr4
2cc: 90 b0 80 05 srai gr8,5,gr8
2d0: 90 a0 80 0e slli gr8,14,gr8
2d4: 90 04 80 84 or gr8,gr4,gr8
2d8: ba 0c 91 88 movgs gr8,dampr9
2dc: b8 0c 91 c4 movsg damlr9,gr4
2e0: 90 08 41 00 ld @(gr4,gr0),gr8
2e4: ba 0c 91 80 movgs gr0,dampr9
2e8: 88 c8 f0 14 ldi @(gr15,20),gr4
2ec: 88 40 4f ff addi gr4,-1,gr4
2f0: 89 48 f0 14 sti gr4,@(gr15,20)
2f4: 8a c8 20 08 ldi @(fp,8),gr5
2f8: 84 08 21 00 ld @(fp,gr0),fp
2fc: 00 30 50 00 jmpl.p @(gr5,gr0)
300: 82 40 10 10 addi sp,16,sp
to:
000002a0 <test_kmap>:
2a0: 82 40 1f f0 addi sp,-16,sp
2a4: 05 48 10 00 sti.p fp,@(sp,0)
2a8: 84 88 10 00 ori sp,0,fp
2ac: 88 0d 01 c5 movsg lr,gr5
2b0: 0b 48 20 08 sti.p gr5,@(fp,8)
2b4: 94 88 80 00 ori gr8,0,gr10
2b8: 88 c8 f0 14 ldi @(gr15,20),gr4
2bc: 88 40 40 01 addi gr4,1,gr4
2c0: 89 48 f0 14 sti gr4,@(gr15,20)
2c4: 08 c9 00 00 ldi.p @(gr16,0),gr4
2c8: 96 f8 00 00 sethi hi(0x0),gr11
2cc: 96 f4 00 00 setlo lo(0x0),gr11
2d0: 92 08 b1 00 ld @(gr11,gr0),gr9
2d4: 88 00 81 04 sub gr8,gr4,gr4
2d8: 88 b0 40 05 srai gr4,5,gr4
2dc: 0a 40 90 01 addi.p gr9,1,gr5
2e0: 80 54 90 48 subicc gr9,72,gr0,icc0
2e4: 0a 0c b0 80 st.p gr5,@(gr11,gr0)
2e8: 8e a0 40 0e slli gr4,14,gr7
2ec: e8 1a 00 06 bhi icc0,0x2,304 <test_kmap+0x64>
2f0: 08 a0 90 02 slli.p gr9,2,gr4
2f4: 8a f8 00 00 sethi hi(0x0),gr5
2f8: 8a f4 00 00 setlo lo(0x0),gr5
2fc: 8c 08 41 05 ld @(gr4,gr5),gr6
300: 80 30 60 00 jmpl @(gr6,gr0)
304: 10 f8 00 00 sethi.p hi(0x0),gr8
308: 92 fc 00 8b setlos 0x8b,gr9
30c: 10 f4 00 00 setlo.p lo(0x0),gr8
310: 80 3c 00 00 call 310 <test_kmap+0x70>
314: 10 fc 00 06 setlos.p 0x6,gr8
318: 80 3c 00 00 call 318 <test_kmap+0x78>
31c: 80 88 00 00 nop
320: c0 1a ff fd bra 314 <test_kmap+0x74>
324: 08 a0 90 0e slli.p gr9,14,gr4
328: 8c f8 db fd sethi 0xdbfd,gr6
32c: 0a fc 0c 09 setlos.p 0xc09,gr5
330: 8c f4 c0 00 setlo 0xc000,gr6
334: 08 00 40 06 add.p gr4,gr6,gr4
338: 8a 04 70 85 or gr7,gr5,gr5
33c: bc 0d 21 84 movgs gr4,tplr
340: bc 0d 31 85 movgs gr5,tppr
344: 8a 0c 49 00 tlbpr gr4,gr0,0x2,0x1
348: 8a 88 40 00 ori gr4,0,gr5
34c: 88 08 b1 00 ld @(gr11,gr0),gr4
350: 90 08 51 00 ld @(gr5,gr0),gr8
354: 88 40 4f ff addi gr4,-1,gr4
358: 08 0c b0 80 st.p gr4,@(gr11,gr0)
35c: 80 54 40 48 subicc gr4,72,gr0,icc0
360: e8 1a 00 27 bhi icc0,0x2,3fc <test_kmap+0x15c>
364: 08 a0 40 02 slli.p gr4,2,gr4
368: 8a f8 00 00 sethi hi(0x0),gr5
36c: 8a f4 00 00 setlo lo(0x0),gr5
370: 8c 08 41 05 ld @(gr4,gr5),gr6
374: 80 30 60 00 jmpl @(gr6,gr0)
378: 88 fc 0c 09 setlos 0xc09,gr4
37c: 88 04 70 84 or gr7,gr4,gr4
380: b6 0c 21 84 movgs gr4,iampr2
384: ba 0c 21 84 movgs gr4,dampr2
388: b8 0c 21 c5 movsg damlr2,gr5
38c: c0 1a ff f0 bra 34c <test_kmap+0xac>
390: ba 0c 21 80 movgs gr0,dampr2
394: b6 0c 21 80 movgs gr0,iampr2
398: 88 c8 f0 14 ldi @(gr15,20),gr4
39c: 88 40 4f ff addi gr4,-1,gr4
3a0: 89 48 f0 14 sti gr4,@(gr15,20)
3a4: 8a c8 20 08 ldi @(fp,8),gr5
3a8: 84 08 21 00 ld @(fp,gr0),fp
3ac: 00 30 50 00 jmpl.p @(gr5,gr0)
3b0: 82 40 10 10 addi sp,16,sp
3b4: ba 0c 31 80 movgs gr0,dampr3
3b8: c0 1a ff f8 bra 398 <test_kmap+0xf8>
3bc: ba 0c 41 80 movgs gr0,dampr4
3c0: c0 1a ff f6 bra 398 <test_kmap+0xf8>
3c4: ba 0c 51 80 movgs gr0,dampr5
3c8: c0 1a ff f4 bra 398 <test_kmap+0xf8>
3cc: ba 0c 61 80 movgs gr0,dampr6
3d0: c0 1a ff f2 bra 398 <test_kmap+0xf8>
3d4: ba 0c 71 80 movgs gr0,dampr7
3d8: c0 1a ff f0 bra 398 <test_kmap+0xf8>
3dc: ba 0c 81 80 movgs gr0,dampr8
3e0: c0 1a ff ee bra 398 <test_kmap+0xf8>
3e4: ba 0c 91 80 movgs gr0,dampr9
3e8: c0 1a ff ec bra 398 <test_kmap+0xf8>
3ec: ba 0c a1 80 movgs gr0,dampr10
3f0: c0 1a ff ea bra 398 <test_kmap+0xf8>
3f4: 92 0c a9 00 tlbpr gr10,gr0,0x4,0x1
3f8: c0 1a ff e8 bra 398 <test_kmap+0xf8>
3fc: 10 f8 00 00 sethi.p hi(0x0),gr8
400: 92 fc 00 b0 setlos 0xb0,gr9
404: 10 f4 00 00 setlo.p lo(0x0),gr8
408: 80 3c 00 00 call 408 <test_kmap+0x168>
40c: 10 fc 00 06 setlos.p 0x6,gr8
410: 80 3c 00 00 call 410 <test_kmap+0x170>
414: 80 88 00 00 nop
418: c0 1a ff fd bra 40c <test_kmap+0x16c>
41c: 88 fc 0c 09 setlos 0xc09,gr4
420: 88 04 70 84 or gr7,gr4,gr4
424: ba 0c 31 84 movgs gr4,dampr3
428: b8 0c 31 c5 movsg damlr3,gr5
42c: c0 1a ff c8 bra 34c <test_kmap+0xac>
430: 88 fc 0c 09 setlos 0xc09,gr4
434: 88 04 70 84 or gr7,gr4,gr4
438: ba 0c 41 84 movgs gr4,dampr4
43c: b8 0c 41 c5 movsg damlr4,gr5
440: c0 1a ff c3 bra 34c <test_kmap+0xac>
444: 88 fc 0c 09 setlos 0xc09,gr4
448: 88 04 70 84 or gr7,gr4,gr4
44c: ba 0c 51 84 movgs gr4,dampr5
450: b8 0c 51 c5 movsg damlr5,gr5
454: c0 1a ff be bra 34c <test_kmap+0xac>
458: 88 fc 0c 09 setlos 0xc09,gr4
45c: 88 04 70 84 or gr7,gr4,gr4
460: ba 0c 61 84 movgs gr4,dampr6
464: b8 0c 61 c5 movsg damlr6,gr5
468: c0 1a ff b9 bra 34c <test_kmap+0xac>
46c: 88 fc 0c 09 setlos 0xc09,gr4
470: 88 04 70 84 or gr7,gr4,gr4
474: ba 0c 71 84 movgs gr4,dampr7
478: b8 0c 71 c5 movsg damlr7,gr5
47c: c0 1a ff b4 bra 34c <test_kmap+0xac>
480: 88 fc 0c 09 setlos 0xc09,gr4
484: 88 04 70 84 or gr7,gr4,gr4
488: ba 0c 81 84 movgs gr4,dampr8
48c: b8 0c 81 c5 movsg damlr8,gr5
490: c0 1a ff af bra 34c <test_kmap+0xac>
494: 88 fc 0c 09 setlos 0xc09,gr4
498: 88 04 70 84 or gr7,gr4,gr4
49c: ba 0c 91 84 movgs gr4,dampr9
4a0: b8 0c 91 c5 movsg damlr9,gr5
4a4: c0 1a ff aa bra 34c <test_kmap+0xac>
4a8: 88 fc 0c 09 setlos 0xc09,gr4
4ac: 88 04 70 84 or gr7,gr4,gr4
4b0: ba 0c a1 84 movgs gr4,dampr10
4b4: b8 0c a1 c5 movsg damlr10,gr5
4b8: c0 1a ff a5 bra 34c <test_kmap+0xac>
Your revised patch reduces the size of the overburden, but still has the
irritating jump table.
> You'd need to disallow nested hardirqs, but I'm not sure FRV suffers
> that particular issue?
It does permit such.
David
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [RFC][PATCH 2/4] mm: stack based kmap_atomic
2009-10-08 23:22 ` [RFC][PATCH 2/4] mm: stack based kmap_atomic Peter Zijlstra
2009-10-08 23:22 ` Peter Zijlstra
@ 2009-10-19 3:08 ` Raja R Harinath
2009-10-19 3:08 ` Raja R Harinath
1 sibling, 1 reply; 13+ messages in thread
From: Raja R Harinath @ 2009-10-19 3:08 UTC (permalink / raw)
To: linux-kernel; +Cc: linux-arch
Hi,
Peter Zijlstra <a.p.zijlstra@chello.nl> writes:
> @@ -74,7 +76,10 @@ EXPORT_SYMBOL(kmap_atomic);
> void kunmap_atomic(void *kvaddr, enum km_type type)
> {
> unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
> - unsigned int idx = type + KM_TYPE_NR * smp_processor_id();
> + unsigned int idx;
> +
> + type = kmap_atomic_idx_pop();
> + idx = type + KM_TYPE_NR * smp_processor_id();
Maybe you can avoid the 4/4 patch and preserve clean bisects by renaming
the unused parameter here and elsewhere, and introduce the 'type' local
in this patch.
void kunmap_atomic(void *kvaddr, enum km_type unused)
{
...
unsigned int idx, type;
...
}
That way, patch 3/4 will remove a genuinely unused parameter, and thus
remain compile-able.
- Hari
^ permalink raw reply [flat|nested] 13+ messages in thread
* Re: [RFC][PATCH 2/4] mm: stack based kmap_atomic
2009-10-19 3:08 ` Raja R Harinath
@ 2009-10-19 3:08 ` Raja R Harinath
0 siblings, 0 replies; 13+ messages in thread
From: Raja R Harinath @ 2009-10-19 3:08 UTC (permalink / raw)
To: linux-arch; +Cc: linux-kernel
Hi,
Peter Zijlstra <a.p.zijlstra@chello.nl> writes:
> @@ -74,7 +76,10 @@ EXPORT_SYMBOL(kmap_atomic);
> void kunmap_atomic(void *kvaddr, enum km_type type)
> {
> unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK;
> - unsigned int idx = type + KM_TYPE_NR * smp_processor_id();
> + unsigned int idx;
> +
> + type = kmap_atomic_idx_pop();
> + idx = type + KM_TYPE_NR * smp_processor_id();
Maybe you can avoid the 4/4 patch and preserve clean bisects by renaming
the unused parameter here and elsewhere, and introduce the 'type' local
in this patch.
void kunmap_atomic(void *kvaddr, enum km_type unused)
{
...
unsigned int idx, type;
...
}
That way, patch 3/4 will remove a genuinely unused parameter, and thus
remain compile-able.
- Hari
^ permalink raw reply [flat|nested] 13+ messages in thread
end of thread, other threads:[~2009-10-19 5:10 UTC | newest]
Thread overview: 13+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2009-10-08 23:22 [RFC][PATCH 0/4] stack based kmap_atomic -v2 Peter Zijlstra
2009-10-08 23:22 ` Peter Zijlstra
2009-10-08 23:22 ` [RFC][PATCH 1/4] mm: strictly nested kmap_atomic Peter Zijlstra
2009-10-08 23:22 ` Peter Zijlstra
2009-10-08 23:22 ` [RFC][PATCH 2/4] mm: stack based kmap_atomic Peter Zijlstra
2009-10-08 23:22 ` Peter Zijlstra
2009-10-19 3:08 ` Raja R Harinath
2009-10-19 3:08 ` Raja R Harinath
2009-10-08 23:22 ` [RFC][PATCH 3/4] mm: remove KM_type argument Peter Zijlstra
2009-10-08 23:22 ` [RFC][PATCH 4/4] mm: remove KM_type argument fallout Peter Zijlstra
2009-10-08 23:22 ` Peter Zijlstra
2009-10-09 13:05 ` [RFC][PATCH 0/4] stack based kmap_atomic -v2 Peter Zijlstra
2009-10-09 15:10 ` David Howells
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