apfs/linux-apfs
0
0
Fork 0
mirror of https://github.com/linux-apfs/linux-apfs.git synced 2026-05-01 15:00:59 -07:00
Code Issues Packages Projects Releases Wiki Activity

Slab allocators: Cleanup zeroing allocations

Browse Source 
It becomes now easy to support the zeroing allocs with generic inline
functions in slab.h.  Provide inline definitions to allow the continued use of
kzalloc, kmem_cache_zalloc etc but remove other definitions of zeroing
functions from the slab allocators and util.c.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christoph Lameter
2007-07-17 04:03:29 -07:00
committed by Linus Torvalds
parent ce15fea827
commit 81cda66261
7 changed files with 46 additions and 126 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mm/slab.c
-17
View File
@@ -3589,23 +3589,6 @@ void *kmem_cache_alloc(struct kmem_cache *cachep, gfp_t flags)
}
EXPORT_SYMBOL(kmem_cache_alloc);
/**
* kmem_cache_zalloc - Allocate an object. The memory is set to zero.
* @cache: The cache to allocate from.
* @flags: See kmalloc().
*
* Allocate an object from this cache and set the allocated memory to zero.
* The flags are only relevant if the cache has no available objects.
*/
void *kmem_cache_zalloc(struct kmem_cache *cache, gfp_t flags)
{
void *ret = __cache_alloc(cache, flags, __builtin_return_address(0));
if (ret)
memset(ret, 0, obj_size(cache));
return ret;
}
EXPORT_SYMBOL(kmem_cache_zalloc);
/**
* kmem_ptr_validate - check if an untrusted pointer might
* be a slab entry.
mm/slob.c
-10
View File
@@ -543,16 +543,6 @@ void *kmem_cache_alloc_node(struct kmem_cache *c, gfp_t flags, int node)
}
EXPORT_SYMBOL(kmem_cache_alloc_node);
void *kmem_cache_zalloc(struct kmem_cache *c, gfp_t flags)
{
void *ret = kmem_cache_alloc(c, flags);
if (ret)
memset(ret, 0, c->size);
return ret;
}
EXPORT_SYMBOL(kmem_cache_zalloc);
static void __kmem_cache_free(void *b, int size)
{
if (size < PAGE_SIZE)
mm/slub.c
-11
View File
@@ -2706,17 +2706,6 @@ err:
}
EXPORT_SYMBOL(kmem_cache_create);
void *kmem_cache_zalloc(struct kmem_cache *s, gfp_t flags)
{
void *x;
x = slab_alloc(s, flags, -1, __builtin_return_address(0));
if (x)
memset(x, 0, s->objsize);
return x;
}
EXPORT_SYMBOL(kmem_cache_zalloc);
#ifdef CONFIG_SMP
/*
* Use the cpu notifier to insure that the cpu slabs are flushed when
mm/util.c
-14
View File
@@ -5,20 +5,6 @@
#include <asm/uaccess.h>
/**
* __kzalloc - allocate memory. The memory is set to zero.
* @size: how many bytes of memory are required.
* @flags: the type of memory to allocate.
*/
void *__kzalloc(size_t size, gfp_t flags)
{
void *ret = kmalloc_track_caller(size, flags);
if (ret)
memset(ret, 0, size);
return ret;
}
EXPORT_SYMBOL(__kzalloc);
/*
* kstrdup - allocate space for and copy an existing string
*
* @s: the string to duplicate