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[PATCH] slab: optimize kmalloc_node the same way as kmalloc 

[akpm@osdl.org: export fix]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
wifi-calibration
Christoph Hellwig 2006-09-25 23:31:36 -07:00 committed by Linus Torvalds
parent da6052f7b3
commit dbe5e69d2d
2 changed files with 26 additions and 3 deletions
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25
include/linux/slab.h
View File

@ -202,7 +202,30 @@ extern int slab_is_available(void);
#ifdef CONFIG_NUMA
extern void *kmem_cache_alloc_node(kmem_cache_t *, gfp_t flags, int node);
extern void *kmalloc_node(size_t size, gfp_t flags, int node);
extern void *__kmalloc_node(size_t size, gfp_t flags, int node);
static inline void *kmalloc_node(size_t size, gfp_t flags, int node)
{
if (__builtin_constant_p(size)) {
int i = 0;
#define CACHE(x) \
if (size <= x) \
goto found; \
else \
i++;
#include "kmalloc_sizes.h"
#undef CACHE
{
extern void __you_cannot_kmalloc_that_much(void);
__you_cannot_kmalloc_that_much();
}
found:
return kmem_cache_alloc_node((flags & GFP_DMA) ?
malloc_sizes[i].cs_dmacachep :
malloc_sizes[i].cs_cachep, flags, node);
}
return __kmalloc_node(size, flags, node);
}
#else
static inline void *kmem_cache_alloc_node(kmem_cache_t *cachep, gfp_t flags, int node)
{

4
mm/slab.c
View File

@ -3348,7 +3348,7 @@ void *kmem_cache_alloc_node(struct kmem_cache *cachep, gfp_t flags, int nodeid)
}
EXPORT_SYMBOL(kmem_cache_alloc_node);
void *kmalloc_node(size_t size, gfp_t flags, int node)
void *__kmalloc_node(size_t size, gfp_t flags, int node)
{
struct kmem_cache *cachep;
@ -3357,7 +3357,7 @@ void *kmalloc_node(size_t size, gfp_t flags, int node)
return NULL;
return kmem_cache_alloc_node(cachep, flags, node);
}
EXPORT_SYMBOL(kmalloc_node);
EXPORT_SYMBOL(__kmalloc_node);
#endif
/**