Messages in this thread Patch in this message | | | From | Joonsoo Kim <> | Subject | [PATCH 1/4] slub: change declare of get_slab() to inline at all times | Date | Sat, 9 Jun 2012 02:23:14 +0900 |
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__kmalloc and it's variants are invoked much frequently and these are performance critical functions, so their callee functions are declared '__always_inline' But, currently, get_slab() isn't declared '__always_inline'. In result, __kmalloc and it's variants call get_slab() on x86. It is not desirable result, so change it to inline at all times.
Signed-off-by: Joonsoo Kim <js1304@gmail.com>
diff --git a/mm/slub.c b/mm/slub.c index 71de9b5..30ceb6d 100644 --- a/mm/slub.c +++ b/mm/slub.c @@ -3320,7 +3320,7 @@ static inline int size_index_elem(size_t bytes) return (bytes - 1) / 8; } -static struct kmem_cache *get_slab(size_t size, gfp_t flags) +static __always_inline struct kmem_cache *get_slab(size_t size, gfp_t flags) { int index; -- 1.7.9.5
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