diff options
Diffstat (limited to 'include/linux/slub_def.h')
| -rw-r--r-- | include/linux/slub_def.h | 19 |
1 files changed, 3 insertions, 16 deletions
diff --git a/include/linux/slub_def.h b/include/linux/slub_def.h index 99c3e05ff1f0..032028ef9a34 100644 --- a/include/linux/slub_def.h +++ b/include/linux/slub_def.h @@ -115,19 +115,6 @@ struct kmem_cache { struct kmem_cache_node *node[MAX_NUMNODES]; }; -/* - * Maximum kmalloc object size handled by SLUB. Larger object allocations - * are passed through to the page allocator. The page allocator "fastpath" - * is relatively slow so we need this value sufficiently high so that - * performance critical objects are allocated through the SLUB fastpath. - * - * This should be dropped to PAGE_SIZE / 2 once the page allocator - * "fastpath" becomes competitive with the slab allocator fastpaths. - */ -#define SLUB_MAX_SIZE (2 * PAGE_SIZE) - -#define SLUB_PAGE_SHIFT (PAGE_SHIFT + 2) - #ifdef CONFIG_ZONE_DMA #define SLUB_DMA __GFP_DMA #else @@ -139,7 +126,7 @@ 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[SLUB_PAGE_SHIFT]; +extern struct kmem_cache *kmalloc_caches[KMALLOC_SHIFT_HIGH + 1]; /* * Find the slab cache for a given combination of allocation flags and size. @@ -211,7 +198,7 @@ static __always_inline void *kmalloc_large(size_t size, gfp_t flags) static __always_inline void *kmalloc(size_t size, gfp_t flags) { if (__builtin_constant_p(size)) { - if (size > SLUB_MAX_SIZE) + if (size > KMALLOC_MAX_CACHE_SIZE) return kmalloc_large(size, flags); if (!(flags & SLUB_DMA)) { @@ -247,7 +234,7 @@ kmem_cache_alloc_node_trace(struct kmem_cache *s, static __always_inline void *kmalloc_node(size_t size, gfp_t flags, int node) { if (__builtin_constant_p(size) && - size <= SLUB_MAX_SIZE && !(flags & SLUB_DMA)) { + size <= KMALLOC_MAX_CACHE_SIZE && !(flags & SLUB_DMA)) { struct kmem_cache *s = kmalloc_slab(size); if (!s) |