A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 10:41:38 -04:00
Code Issues Projects Releases Packages Wiki Activity

[PATCH] Cleanup slab headers / API to allow easy addition of new slab allocators

Browse source 
This is a response to an earlier discussion on linux-mm about splitting
slab.h components per allocator.  Patch is against 2.6.19-git11.  See
http://marc.theaimsgroup.com/?l=linux-mm&m=116469577431008&w=2

This patch cleans up the slab header definitions.  We define the common
functions of slob and slab in slab.h and put the extra definitions needed
for slab's kmalloc implementations in <linux/slab_def.h>.  In order to get
a greater set of common functions we add several empty functions to slob.c
and also rename slob's kmalloc to __kmalloc.

Slob does not need any special definitions since we introduce a fallback
case.  If there is no need for a slab implementation to provide its own
kmalloc mess^H^H^Hacros then we simply fall back to __kmalloc functions.
That is sufficient for SLOB.

Sort the function in slab.h according to their functionality.  First the
functions operating on struct kmem_cache * then the kmalloc related
functions followed by special debug and fallback definitions.

Also redo a lot of comments.

Signed-off-by: Christoph Lameter <[email protected]>?
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Christoph Lameter 2006-12-13 00:34:23 -08:00 • committed by Linus Torvalds
commit 2e892f43cc
3 changed files with 223 additions and 199 deletions
Download patch file Download diff file Expand all files Collapse all files

16
mm/slob.c
View file

@ -157,7 +157,7 @@ static int fastcall find_order(int size)
return order;
}
void *kmalloc(size_t size, gfp_t gfp)
void *__kmalloc(size_t size, gfp_t gfp)
{
slob_t *m;
bigblock_t *bb;
@ -186,8 +186,7 @@ void *kmalloc(size_t size, gfp_t gfp)
slob_free(bb, sizeof(bigblock_t));
return 0;
}
EXPORT_SYMBOL(kmalloc);
EXPORT_SYMBOL(__kmalloc);
void kfree(const void *block)
{
@ -329,6 +328,17 @@ EXPORT_SYMBOL(kmem_cache_name);
static struct timer_list slob_timer = TIMER_INITIALIZER(
(void (*)(unsigned long))kmem_cache_init, 0, 0);
int kmem_cache_shrink(struct kmem_cache *d)
{
return 0;
}
EXPORT_SYMBOL(kmem_cache_shrink);
int kmem_ptr_validate(struct kmem_cache *a, void *b)
{
return 0;
}
void kmem_cache_init(void)
{
void *p = slob_alloc(PAGE_SIZE, 0, PAGE_SIZE-1);