From: Christoph Lameter <clameter@sgi.com>
To: unlisted-recipients:; (no To-header on input)
Cc: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [02/17] vmalloc: add const
Date: Tue, 25 Sep 2007 16:42:06 -0700 [thread overview]
Message-ID: <20070925234249.628858015@sgi.com> (raw)
In-Reply-To: 20070925234204.546836393@sgi.com
[-- Attachment #1: vcompound_vmalloc_const --]
[-- Type: text/plain, Size: 4475 bytes --]
Make vmalloc functions work the same way as kfree() and friends that
take a const void * argument.
Signed-off-by: Christoph Lameter <clameter@sgi.com>
---
include/linux/mm.h | 4 ++--
include/linux/vmalloc.h | 6 +++---
mm/vmalloc.c | 16 ++++++++--------
3 files changed, 13 insertions(+), 13 deletions(-)
Index: linux-2.6/mm/vmalloc.c
===================================================================
--- linux-2.6.orig/mm/vmalloc.c 2007-09-24 16:58:37.000000000 -0700
+++ linux-2.6/mm/vmalloc.c 2007-09-24 16:58:45.000000000 -0700
@@ -169,7 +169,7 @@ EXPORT_SYMBOL_GPL(map_vm_area);
/*
* Map a vmalloc()-space virtual address to the physical page.
*/
-struct page *vmalloc_to_page(void *vmalloc_addr)
+struct page *vmalloc_to_page(const void *vmalloc_addr)
{
unsigned long addr = (unsigned long) vmalloc_addr;
struct page *page = NULL;
@@ -198,7 +198,7 @@ EXPORT_SYMBOL(vmalloc_to_page);
/*
* Map a vmalloc()-space virtual address to the physical page frame number.
*/
-unsigned long vmalloc_to_pfn(void *vmalloc_addr)
+unsigned long vmalloc_to_pfn(const void *vmalloc_addr)
{
return page_to_pfn(vmalloc_to_page(vmalloc_addr));
}
@@ -305,7 +305,7 @@ struct vm_struct *get_vm_area_node(unsig
}
/* Caller must hold vmlist_lock */
-static struct vm_struct *__find_vm_area(void *addr)
+static struct vm_struct *__find_vm_area(const void *addr)
{
struct vm_struct *tmp;
@@ -318,7 +318,7 @@ static struct vm_struct *__find_vm_area(
}
/* Caller must hold vmlist_lock */
-static struct vm_struct *__remove_vm_area(void *addr)
+static struct vm_struct *__remove_vm_area(const void *addr)
{
struct vm_struct **p, *tmp;
@@ -347,7 +347,7 @@ found:
* This function returns the found VM area, but using it is NOT safe
* on SMP machines, except for its size or flags.
*/
-struct vm_struct *remove_vm_area(void *addr)
+struct vm_struct *remove_vm_area(const void *addr)
{
struct vm_struct *v;
write_lock(&vmlist_lock);
@@ -356,7 +356,7 @@ struct vm_struct *remove_vm_area(void *a
return v;
}
-static void __vunmap(void *addr, int deallocate_pages)
+static void __vunmap(const void *addr, int deallocate_pages)
{
struct vm_struct *area;
@@ -407,7 +407,7 @@ static void __vunmap(void *addr, int dea
*
* Must not be called in interrupt context.
*/
-void vfree(void *addr)
+void vfree(const void *addr)
{
BUG_ON(in_interrupt());
__vunmap(addr, 1);
@@ -423,7 +423,7 @@ EXPORT_SYMBOL(vfree);
*
* Must not be called in interrupt context.
*/
-void vunmap(void *addr)
+void vunmap(const void *addr)
{
BUG_ON(in_interrupt());
__vunmap(addr, 0);
Index: linux-2.6/include/linux/vmalloc.h
===================================================================
--- linux-2.6.orig/include/linux/vmalloc.h 2007-09-24 16:58:37.000000000 -0700
+++ linux-2.6/include/linux/vmalloc.h 2007-09-24 16:58:45.000000000 -0700
@@ -45,11 +45,11 @@ extern void *vmalloc_32_user(unsigned lo
extern void *__vmalloc(unsigned long size, gfp_t gfp_mask, pgprot_t prot);
extern void *__vmalloc_area(struct vm_struct *area, gfp_t gfp_mask,
pgprot_t prot);
-extern void vfree(void *addr);
+extern void vfree(const void *addr);
extern void *vmap(struct page **pages, unsigned int count,
unsigned long flags, pgprot_t prot);
-extern void vunmap(void *addr);
+extern void vunmap(const void *addr);
extern int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
unsigned long pgoff);
@@ -71,7 +71,7 @@ extern struct vm_struct *__get_vm_area(u
extern struct vm_struct *get_vm_area_node(unsigned long size,
unsigned long flags, int node,
gfp_t gfp_mask);
-extern struct vm_struct *remove_vm_area(void *addr);
+extern struct vm_struct *remove_vm_area(const void *addr);
extern int map_vm_area(struct vm_struct *area, pgprot_t prot,
struct page ***pages);
Index: linux-2.6/include/linux/mm.h
===================================================================
--- linux-2.6.orig/include/linux/mm.h 2007-09-24 16:58:44.000000000 -0700
+++ linux-2.6/include/linux/mm.h 2007-09-24 16:58:48.000000000 -0700
@@ -294,8 +294,8 @@ static inline int get_page_unless_zero(s
return atomic_inc_not_zero(&page->_count);
}
-struct page *vmalloc_to_page(void *addr);
-unsigned long vmalloc_to_pfn(void *addr);
+struct page *vmalloc_to_page(const void *addr);
+unsigned long vmalloc_to_pfn(const void *addr);
static inline struct page *compound_head(struct page *page)
{
--
next prev parent reply other threads:[~2007-09-25 23:44 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-25 23:42 [00/17] Virtual Compound Page Support V1 Christoph Lameter
2007-09-25 23:42 ` [01/17] Vmalloc: Move vmalloc_to_page to mm/vmalloc Christoph Lameter
2007-09-25 23:42 ` Christoph Lameter [this message]
2007-09-25 23:42 ` [03/17] i386: Resolve dependency of asm-i386/pgtable.h on highmem.h Christoph Lameter
2007-09-25 23:42 ` [04/17] is_vmalloc_addr(): Check if an address is within the vmalloc boundaries Christoph Lameter
2007-09-25 23:42 ` [05/17] vmalloc: clean up page array indexing Christoph Lameter
2007-09-25 23:42 ` [06/17] vunmap: return page array passed on vmap() Christoph Lameter
2007-09-25 23:42 ` [07/17] vmalloc_address(): Determine vmalloc address from page struct Christoph Lameter
2007-09-25 23:42 ` [08/17] GFP_VFALLBACK: Allow fallback of compound pages to virtual mappings Christoph Lameter
2007-09-25 23:42 ` [09/17] VFALLBACK: Debugging aid Christoph Lameter
2007-09-25 23:42 ` [10/17] Use GFP_VFALLBACK for sparsemem Christoph Lameter
2007-09-25 23:42 ` [11/17] GFP_VFALLBACK for zone wait table Christoph Lameter
2007-09-25 23:42 ` [12/17] Virtual Compound page allocation from interrupt context Christoph Lameter
2007-09-25 23:42 ` [13/17] Virtual compound page freeing in " Christoph Lameter
2007-09-28 4:52 ` KAMEZAWA Hiroyuki
2007-09-28 17:35 ` Christoph Lameter
2007-09-28 23:58 ` KAMEZAWA Hiroyuki
2007-09-25 23:42 ` [14/17] Allow bit_waitqueue to wait on a bit in a vmalloc area Christoph Lameter
2007-09-25 23:42 ` [15/17] SLUB: Support virtual fallback via SLAB_VFALLBACK Christoph Lameter
2007-09-25 23:42 ` [16/17] Allow virtual fallback for buffer_heads Christoph Lameter
2007-09-25 23:42 ` [17/17] Allow virtual fallback for dentries Christoph Lameter
-- strict thread matches above, loose matches on Subject: below --
2007-09-19 3:36 [00/17] [RFC] Virtual Compound Page Support Christoph Lameter
2007-09-19 3:36 ` [02/17] Vmalloc: add const Christoph Lameter
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