From: Ravikiran G Thirumalai <kiran@scalex86.org>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org, dipankar@in.ibm.com,
bharata@in.ibm.com, shai@scalex86.org,
Rusty Russell <rusty@rustcorp.com.au>
Subject: [patch 1/11] mm: Reimplementation of dynamic per-cpu allocator -- vmalloc_fixup
Date: Tue, 13 Sep 2005 08:54:16 -0700 [thread overview]
Message-ID: <20050913155416.GC3570@localhost.localdomain> (raw)
In-Reply-To: <20050913155112.GB3570@localhost.localdomain>
Patch to add gfp_flags as args to __get_vm_area. alloc_percpu needs to use
GFP flags as the dst_entry.refcount needs to be allocated with GFP_ATOMIC.
Since alloc_percpu needs get_vm_area underneath, this patch changes
__get_vmarea to accept gfp_flags as arg, so that alloc_percpu can use
__get_vm_area. get_vm_area remains unchanged.
Signed-off-by: Ravikiran Thirumalai <kiran@scalex86.org>
Signed-off-by: Shai Fultheim <shai@scalex86.org>
Index: alloc_percpu-2.6.13-rc6/arch/arm/kernel/module.c
===================================================================
--- alloc_percpu-2.6.13-rc6.orig/arch/arm/kernel/module.c 2005-06-17 12:48:29.000000000 -0700
+++ alloc_percpu-2.6.13-rc6/arch/arm/kernel/module.c 2005-08-14 23:03:49.000000000 -0700
@@ -40,7 +40,8 @@
if (!size)
return NULL;
- area = __get_vm_area(size, VM_ALLOC, MODULE_START, MODULE_END);
+ area = __get_vm_area(size, VM_ALLOC, MODULE_START, MODULE_END,
+ GFP_KERNEL);
if (!area)
return NULL;
Index: alloc_percpu-2.6.13-rc6/arch/sh/kernel/cpu/sh4/sq.c
===================================================================
--- alloc_percpu-2.6.13-rc6.orig/arch/sh/kernel/cpu/sh4/sq.c 2005-06-17 12:48:29.000000000 -0700
+++ alloc_percpu-2.6.13-rc6/arch/sh/kernel/cpu/sh4/sq.c 2005-08-14 23:04:48.000000000 -0700
@@ -189,7 +189,8 @@
* writeout before we hit the TLB flush, we do it anyways. This way
* we at least save ourselves the initial page fault overhead.
*/
- vma = __get_vm_area(map->size, VM_ALLOC, map->sq_addr, SQ_ADDRMAX);
+ vma = __get_vm_area(map->size, VM_ALLOC, map->sq_addr, SQ_ADDRMAX,
+ GFP_KERNEL);
if (!vma)
return ERR_PTR(-ENOMEM);
Index: alloc_percpu-2.6.13-rc6/arch/sparc64/kernel/module.c
===================================================================
--- alloc_percpu-2.6.13-rc6.orig/arch/sparc64/kernel/module.c 2005-06-17 12:48:29.000000000 -0700
+++ alloc_percpu-2.6.13-rc6/arch/sparc64/kernel/module.c 2005-08-14 23:05:49.000000000 -0700
@@ -25,7 +25,8 @@
if (!size || size > MODULES_LEN)
return NULL;
- area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END);
+ area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END,
+ GFP_KERNEL);
if (!area)
return NULL;
Index: alloc_percpu-2.6.13-rc6/arch/x86_64/kernel/module.c
===================================================================
--- alloc_percpu-2.6.13-rc6.orig/arch/x86_64/kernel/module.c 2005-06-17 12:48:29.000000000 -0700
+++ alloc_percpu-2.6.13-rc6/arch/x86_64/kernel/module.c 2005-08-14 23:06:28.000000000 -0700
@@ -48,7 +48,8 @@
if (size > MODULES_LEN)
return NULL;
- area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END);
+ area = __get_vm_area(size, VM_ALLOC, MODULES_VADDR, MODULES_END,
+ GFP_KERNEL);
if (!area)
return NULL;
Index: alloc_percpu-2.6.13-rc6/include/linux/vmalloc.h
===================================================================
--- alloc_percpu-2.6.13-rc6.orig/include/linux/vmalloc.h 2005-06-17 12:48:29.000000000 -0700
+++ alloc_percpu-2.6.13-rc6/include/linux/vmalloc.h 2005-08-14 23:12:29.000000000 -0700
@@ -39,7 +39,8 @@
*/
extern struct vm_struct *get_vm_area(unsigned long size, unsigned long flags);
extern struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags,
- unsigned long start, unsigned long end);
+ unsigned long start, unsigned long end,
+ unsigned int gfpflags);
extern struct vm_struct *remove_vm_area(void *addr);
extern struct vm_struct *__remove_vm_area(void *addr);
extern int map_vm_area(struct vm_struct *area, pgprot_t prot,
Index: alloc_percpu-2.6.13-rc6/mm/vmalloc.c
===================================================================
--- alloc_percpu-2.6.13-rc6.orig/mm/vmalloc.c 2005-06-17 12:48:29.000000000 -0700
+++ alloc_percpu-2.6.13-rc6/mm/vmalloc.c 2005-08-14 22:29:31.000000000 -0700
@@ -161,7 +161,8 @@
#define IOREMAP_MAX_ORDER (7 + PAGE_SHIFT) /* 128 pages */
struct vm_struct *__get_vm_area(unsigned long size, unsigned long flags,
- unsigned long start, unsigned long end)
+ unsigned long start, unsigned long end,
+ unsigned int gfp_flags)
{
struct vm_struct **p, *tmp, *area;
unsigned long align = 1;
@@ -180,7 +181,7 @@
addr = ALIGN(start, align);
size = PAGE_ALIGN(size);
- area = kmalloc(sizeof(*area), GFP_KERNEL);
+ area = kmalloc(sizeof(*area), gfp_flags);
if (unlikely(!area))
return NULL;
@@ -245,7 +246,8 @@
*/
struct vm_struct *get_vm_area(unsigned long size, unsigned long flags)
{
- return __get_vm_area(size, flags, VMALLOC_START, VMALLOC_END);
+ return __get_vm_area(size, flags, VMALLOC_START, VMALLOC_END,
+ GFP_KERNEL);
}
/* Caller must hold vmlist_lock */
next prev parent reply other threads:[~2005-09-13 15:54 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-13 15:51 [patch 0/11] mm: Reimplementation of dynamic per-cpu allocator Ravikiran G Thirumalai
2005-09-13 15:54 ` Ravikiran G Thirumalai [this message]
2005-09-13 19:25 ` [patch 1/11] mm: Reimplementation of dynamic per-cpu allocator -- vmalloc_fixup Andrew Morton
2005-09-13 15:56 ` [patch 2/11] mm: Reimplementation of dynamic per-cpu allocator -- alloc_percpu Ravikiran G Thirumalai
2005-09-13 15:58 ` [patch 3/11] mm: Reimplementation of dynamic per-cpu allocator -- alloc_percpu_atomic Ravikiran G Thirumalai
2005-09-13 15:59 ` [patch 4/11] mm: Reimplementation of dynamic per-cpu allocator -- change_alloc_percpu_users Ravikiran G Thirumalai
2005-09-13 16:01 ` [patch 5/11] mm: Bigrefs -- add_getcpuptr Ravikiran G Thirumalai
2005-09-13 16:04 ` [patch 6/11] mm: Bigrefs -- distributed refcounters Ravikiran G Thirumalai
2005-09-14 7:36 ` Rusty Russell
2005-09-14 20:03 ` Ravikiran G Thirumalai
2005-09-13 16:10 ` [patch 7/11] net: Use bigrefs for net_device.refcount Ravikiran G Thirumalai
2005-09-13 16:26 ` Stephen Hemminger
2005-09-13 16:35 ` Ben Greear
2005-09-13 16:46 ` Stephen Hemminger
2005-09-13 20:26 ` David S. Miller
2005-09-13 22:16 ` Ravikiran G Thirumalai
2005-09-13 18:27 ` Eric Dumazet
2005-09-13 18:53 ` Ravikiran G Thirumalai
2005-09-13 16:12 ` [patch 8/11] net: dst_abstraction macros Ravikiran G Thirumalai
2005-09-13 16:17 ` [patch 9/11] net: dst_entry.refcount, use, lastuse to use alloc_percpu Ravikiran G Thirumalai
2005-09-13 20:24 ` David S. Miller
2005-09-13 22:07 ` Ravikiran G Thirumalai
2005-09-13 22:12 ` David S. Miller
2005-09-13 23:17 ` Ravikiran G Thirumalai
2005-09-13 23:27 ` David S. Miller
2005-09-14 7:21 ` Rusty Russell
2005-09-13 16:18 ` [patch 10/11] mm: Reimplementation of dynamic per-cpu allocator -- allow_early_mapvmarea Ravikiran G Thirumalai
2005-09-13 16:19 ` [patch 11/11] mm: Reimplementation of dynamic per-cpu allocator -- hotplug_alloc_percpu_blocks Ravikiran G Thirumalai
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