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-rw-r--r--include/linux/slab_def.h124
1 files changed, 0 insertions, 124 deletions
diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
deleted file mode 100644
index a61e7d55d0d305..00000000000000
--- a/include/linux/slab_def.h
+++ /dev/null
@@ -1,124 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _LINUX_SLAB_DEF_H
-#define _LINUX_SLAB_DEF_H
-
-#include <linux/kfence.h>
-#include <linux/reciprocal_div.h>
-
-/*
- * Definitions unique to the original Linux SLAB allocator.
- */
-
-struct kmem_cache {
- struct array_cache __percpu *cpu_cache;
-
-/* 1) Cache tunables. Protected by slab_mutex */
- unsigned int batchcount;
- unsigned int limit;
- unsigned int shared;
-
- unsigned int size;
- struct reciprocal_value reciprocal_buffer_size;
-/* 2) touched by every alloc & free from the backend */
-
- slab_flags_t flags; /* constant flags */
- unsigned int num; /* # of objs per slab */
-
-/* 3) cache_grow/shrink */
- /* order of pgs per slab (2^n) */
- unsigned int gfporder;
-
- /* force GFP flags, e.g. GFP_DMA */
- gfp_t allocflags;
-
- size_t colour; /* cache colouring range */
- unsigned int colour_off; /* colour offset */
- unsigned int freelist_size;
-
- /* constructor func */
- void (*ctor)(void *obj);
-
-/* 4) cache creation/removal */
- const char *name;
- struct list_head list;
- int refcount;
- int object_size;
- int align;
-
-/* 5) statistics */
-#ifdef CONFIG_DEBUG_SLAB
- unsigned long num_active;
- unsigned long num_allocations;
- unsigned long high_mark;
- unsigned long grown;
- unsigned long reaped;
- unsigned long errors;
- unsigned long max_freeable;
- unsigned long node_allocs;
- unsigned long node_frees;
- unsigned long node_overflow;
- atomic_t allochit;
- atomic_t allocmiss;
- atomic_t freehit;
- atomic_t freemiss;
-
- /*
- * If debugging is enabled, then the allocator can add additional
- * fields and/or padding to every object. 'size' contains the total
- * object size including these internal fields, while 'obj_offset'
- * and 'object_size' contain the offset to the user object and its
- * size.
- */
- int obj_offset;
-#endif /* CONFIG_DEBUG_SLAB */
-
-#ifdef CONFIG_KASAN_GENERIC
- struct kasan_cache kasan_info;
-#endif
-
-#ifdef CONFIG_SLAB_FREELIST_RANDOM
- unsigned int *random_seq;
-#endif
-
-#ifdef CONFIG_HARDENED_USERCOPY
- unsigned int useroffset; /* Usercopy region offset */
- unsigned int usersize; /* Usercopy region size */
-#endif
-
- struct kmem_cache_node *node[MAX_NUMNODES];
-};
-
-static inline void *nearest_obj(struct kmem_cache *cache, const struct slab *slab,
- void *x)
-{
- void *object = x - (x - slab->s_mem) % cache->size;
- void *last_object = slab->s_mem + (cache->num - 1) * cache->size;
-
- if (unlikely(object > last_object))
- return last_object;
- else
- return object;
-}
-
-/*
- * We want to avoid an expensive divide : (offset / cache->size)
- * Using the fact that size is a constant for a particular cache,
- * we can replace (offset / cache->size) by
- * reciprocal_divide(offset, cache->reciprocal_buffer_size)
- */
-static inline unsigned int obj_to_index(const struct kmem_cache *cache,
- const struct slab *slab, void *obj)
-{
- u32 offset = (obj - slab->s_mem);
- return reciprocal_divide(offset, cache->reciprocal_buffer_size);
-}
-
-static inline int objs_per_slab(const struct kmem_cache *cache,
- const struct slab *slab)
-{
- if (is_kfence_address(slab_address(slab)))
- return 1;
- return cache->num;
-}
-
-#endif /* _LINUX_SLAB_DEF_H */