1 #ifndef _LINUX_SLAB_DEF_H
2 #define _LINUX_SLAB_DEF_H
5 * Definitions unique to the original Linux SLAB allocator.
7 * What we provide here is a way to optimize the frequent kmalloc
8 * calls in the kernel by selecting the appropriate general cache
9 * if kmalloc was called with a size that can be established at
13 #include <linux/init.h>
14 #include <asm/page.h> /* kmalloc_sizes.h needs PAGE_SIZE */
15 #include <asm/cache.h> /* kmalloc_sizes.h needs L1_CACHE_BYTES */
16 #include <linux/compiler.h>
18 /* Size description struct for general caches. */
21 struct kmem_cache *cs_cachep;
22 #ifdef CONFIG_ZONE_DMA
23 struct kmem_cache *cs_dmacachep;
26 extern struct cache_sizes malloc_sizes[];
28 void *kmem_cache_alloc(struct kmem_cache *, gfp_t);
29 void *__kmalloc(size_t size, gfp_t flags);
31 static inline void *kmalloc(size_t size, gfp_t flags)
33 if (__builtin_constant_p(size)) {
44 #include <linux/kmalloc_sizes.h>
48 #ifdef CONFIG_ZONE_DMA
50 return kmem_cache_alloc(malloc_sizes[i].cs_dmacachep,
53 return kmem_cache_alloc(malloc_sizes[i].cs_cachep, flags);
55 return __kmalloc(size, flags);
59 extern void *__kmalloc_node(size_t size, gfp_t flags, int node);
60 extern void *kmem_cache_alloc_node(struct kmem_cache *, gfp_t flags, int node);
62 static inline void *kmalloc_node(size_t size, gfp_t flags, int node)
64 if (__builtin_constant_p(size)) {
75 #include <linux/kmalloc_sizes.h>
79 #ifdef CONFIG_ZONE_DMA
81 return kmem_cache_alloc_node(malloc_sizes[i].cs_dmacachep,
84 return kmem_cache_alloc_node(malloc_sizes[i].cs_cachep,
87 return __kmalloc_node(size, flags, node);
90 #endif /* CONFIG_NUMA */
92 #endif /* _LINUX_SLAB_DEF_H */