[PATCH] slab: remove SLAB_LEVEL_MASK

[mirror_ubuntu-bionic-kernel.git] / include / linux / slab.h

diff --git a/include/linux/slab.h b/include/linux/slab.h
index f9202d60d7696e4adde20dde0c2caecd8bce8f6f..6f7b9bb43065828a4217cc246b5dca46fc020b0b 100644 (file)
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -9,6 +9,7 @@
 
 #if    defined(__KERNEL__)
 
+/* kmem_cache_t exists for legacy reasons and is not used by code in mm */
 typedef struct kmem_cache kmem_cache_t;
 
 #include       <linux/gfp.h>
@@ -25,10 +26,6 @@ typedef struct kmem_cache kmem_cache_t;
 #define        SLAB_KERNEL             GFP_KERNEL
 #define        SLAB_DMA                GFP_DMA
 
-#define SLAB_LEVEL_MASK                GFP_LEVEL_MASK
-
-#define        SLAB_NO_GROW            __GFP_NO_GROW   /* don't grow a cache */
-
 /* flags to pass to kmem_cache_create().
  * The first 3 are only valid when the allocator as been build
  * SLAB_DEBUG_SUPPORT.
@@ -57,22 +54,23 @@ typedef struct kmem_cache kmem_cache_t;
 /* prototypes */
 extern void __init kmem_cache_init(void);
 
-extern kmem_cache_t *kmem_cache_create(const char *, size_t, size_t, unsigned long,
-                                      void (*)(void *, kmem_cache_t *, unsigned long),
-                                      void (*)(void *, kmem_cache_t *, unsigned long));
-extern void kmem_cache_destroy(kmem_cache_t *);
-extern int kmem_cache_shrink(kmem_cache_t *);
-extern void *kmem_cache_alloc(kmem_cache_t *, gfp_t);
+extern struct kmem_cache *kmem_cache_create(const char *, size_t, size_t,
+                       unsigned long,
+                       void (*)(void *, struct kmem_cache *, unsigned long),
+                       void (*)(void *, struct kmem_cache *, unsigned long));
+extern void kmem_cache_destroy(struct kmem_cache *);
+extern int kmem_cache_shrink(struct kmem_cache *);
+extern void *kmem_cache_alloc(struct kmem_cache *, gfp_t);
 extern void *kmem_cache_zalloc(struct kmem_cache *, gfp_t);
-extern void kmem_cache_free(kmem_cache_t *, void *);
-extern unsigned int kmem_cache_size(kmem_cache_t *);
-extern const char *kmem_cache_name(kmem_cache_t *);
+extern void kmem_cache_free(struct kmem_cache *, void *);
+extern unsigned int kmem_cache_size(struct kmem_cache *);
+extern const char *kmem_cache_name(struct kmem_cache *);
 
 /* Size description struct for general caches. */
 struct cache_sizes {
-       size_t           cs_size;
-       kmem_cache_t    *cs_cachep;
-       kmem_cache_t    *cs_dmacachep;
+       size_t                  cs_size;
+       struct kmem_cache       *cs_cachep;
+       struct kmem_cache       *cs_dmacachep;
 };
 extern struct cache_sizes malloc_sizes[];
 
@@ -211,7 +209,7 @@ extern unsigned int ksize(const void *);
 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 *kmem_cache_alloc_node(struct kmem_cache *, 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)
@@ -255,7 +253,8 @@ extern void *__kmalloc_node_track_caller(size_t, gfp_t, int, void *);
                        __builtin_return_address(0))
 #endif
 #else /* CONFIG_NUMA */
-static inline void *kmem_cache_alloc_node(kmem_cache_t *cachep, gfp_t flags, int node)
+static inline void *kmem_cache_alloc_node(struct kmem_cache *cachep,
+                                       gfp_t flags, int node)
 {
        return kmem_cache_alloc(cachep, flags);
 }
@@ -269,7 +268,7 @@ static inline void *kmalloc_node(size_t size, gfp_t flags, int node)
 #endif
 
 extern int FASTCALL(kmem_cache_reap(int));
-extern int FASTCALL(kmem_ptr_validate(kmem_cache_t *cachep, void *ptr));
+extern int FASTCALL(kmem_ptr_validate(struct kmem_cache *cachep, void *ptr));
 
 #else /* CONFIG_SLOB */
 
@@ -308,10 +307,6 @@ static inline void *kcalloc(size_t n, size_t size, gfp_t flags)
 
 #endif /* CONFIG_SLOB */
 
-/* System wide caches */
-extern kmem_cache_t    *names_cachep;
-extern kmem_cache_t    *fs_cachep;
-
 #endif /* __KERNEL__ */
 
 #endif /* _LINUX_SLAB_H */