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| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-14 21:24:02 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2008-02-14 21:24:02 -0800 |
| commit | f527cf405017e60ceb28f84e2d60ab16fc34f209 (patch) | |
| tree | eadf0bfa385dad2e76a27d9a01cdcb22bad0efc1 /include | |
| parent | cead99dcf48eeaaac0a1ececff9c979756b79294 (diff) | |
| parent | 331dc558fa020451ff773973cee855fd721aa88e (diff) | |
| download | linux-stable-f527cf405017e60ceb28f84e2d60ab16fc34f209.tar.gz linux-stable-f527cf405017e60ceb28f84e2d60ab16fc34f209.tar.bz2 linux-stable-f527cf405017e60ceb28f84e2d60ab16fc34f209.zip | |
Merge branch 'slab-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm
* 'slab-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/christoph/vm:
slub: Support 4k kmallocs again to compensate for page allocator slowness
slub: Fallback to kmalloc_large for failing higher order allocs
slub: Determine gfpflags once and not every time a slab is allocated
make slub.c:slab_address() static
slub: kmalloc page allocator pass-through cleanup
slab: avoid double initialization & do initialization in 1 place
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/slub_def.h | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index 5e6d3d634d5b..57deecc79d52 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -71,6 +71,7 @@ struct kmem_cache { /* Allocation and freeing of slabs */ int objects; /* Number of objects in slab */ + gfp_t allocflags; /* gfp flags to use on each alloc */ int refcount; /* Refcount for slab cache destroy */ void (*ctor)(struct kmem_cache *, void *); int inuse; /* Offset to metadata */ @@ -110,7 +111,7 @@ struct kmem_cache { * We keep the general caches in an array of slab caches that are used for * 2^x bytes of allocations. */ -extern struct kmem_cache kmalloc_caches[PAGE_SHIFT]; +extern struct kmem_cache kmalloc_caches[PAGE_SHIFT + 1]; /* * Sorry that the following has to be that ugly but some versions of GCC @@ -188,12 +189,16 @@ static __always_inline struct kmem_cache *kmalloc_slab(size_t size) void *kmem_cache_alloc(struct kmem_cache *, gfp_t); void *__kmalloc(size_t size, gfp_t flags); +static __always_inline void *kmalloc_large(size_t size, gfp_t flags) +{ + return (void *)__get_free_pages(flags | __GFP_COMP, get_order(size)); +} + static __always_inline void *kmalloc(size_t size, gfp_t flags) { if (__builtin_constant_p(size)) { - if (size > PAGE_SIZE / 2) - return (void *)__get_free_pages(flags | __GFP_COMP, - get_order(size)); + if (size > PAGE_SIZE) + return kmalloc_large(size, flags); if (!(flags & SLUB_DMA)) { struct kmem_cache *s = kmalloc_slab(size); @@ -214,7 +219,7 @@ void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node); static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node) { if (__builtin_constant_p(size) && - size <= PAGE_SIZE / 2 && !(flags & SLUB_DMA)) { + size <= PAGE_SIZE && !(flags & SLUB_DMA)) { struct kmem_cache *s = kmalloc_slab(size); if (!s) |