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| author | Christoph Hellwig <hch@lst.de> | 2006-09-25 23:31:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-09-26 08:48:49 -0700 |
| commit | dbe5e69d2d6e591996ea2b817b887d03b60bb143 (patch) | |
| tree | 09e21f2e0da60faef982d02a9224e62c409e776a /include/linux/slab.h | |
| parent | da6052f7b33abe55fbfd7d2213815f58c00a88d4 (diff) | |
| download | blackbird-op-linux-dbe5e69d2d6e591996ea2b817b887d03b60bb143.tar.gz blackbird-op-linux-dbe5e69d2d6e591996ea2b817b887d03b60bb143.zip | |
[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>
Diffstat (limited to 'include/linux/slab.h')
| -rw-r--r-- | include/linux/slab.h | 25 |
1 files changed, 24 insertions, 1 deletions
diff --git a/include/linux/slab.h b/include/linux/slab.h index 193c03c547ec..2f6bef6a98c9 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -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) { |
