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mm/slab: Introduce kmem_buckets typedef

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Encapsulate the concept of a single set of kmem_caches that are used
for the kmalloc size buckets. Redefine kmalloc_caches as an array
of these buckets (for the different global cache buckets).

Signed-off-by: Kees Cook <kees@kernel.org>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
This commit is contained in:
Kees Cook 2024-07-01 12:12:58 -07:00 committed by Vlastimil Babka
parent ad59baa316
commit 72e0fe2241
2 changed files with 4 additions and 4 deletions
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5
include/linux/slab.h
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@ -426,8 +426,9 @@ enum kmalloc_cache_type {
NR_KMALLOC_TYPES
};
extern struct kmem_cache *
kmalloc_caches[NR_KMALLOC_TYPES][KMALLOC_SHIFT_HIGH + 1];
typedef struct kmem_cache * kmem_buckets[KMALLOC_SHIFT_HIGH + 1];
extern kmem_buckets kmalloc_caches[NR_KMALLOC_TYPES];
/*
* Define gfp bits that should not be set for KMALLOC_NORMAL.

3
mm/slab_common.c
View File

@ -654,8 +654,7 @@ static struct kmem_cache *__init create_kmalloc_cache(const char *name,
return s;
}
struct kmem_cache *
kmalloc_caches[NR_KMALLOC_TYPES][KMALLOC_SHIFT_HIGH + 1] __ro_after_init =
kmem_buckets kmalloc_caches[NR_KMALLOC_TYPES] __ro_after_init =
{ /* initialization for https://llvm.org/pr42570 */ };
EXPORT_SYMBOL(kmalloc_caches);