Commit 72e0fe22 authored by Kees Cook's avatar Kees Cook Committed by Vlastimil Babka
Browse files

mm/slab: Introduce kmem_buckets typedef 



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: default avatarKees Cook <kees@kernel.org>
Signed-off-by: default avatarVlastimil Babka <vbabka@suse.cz>
parent ad59baa3

include/linux/slab.h

+3 −2
Original line number Diff line number Diff line
@@ -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.

mm/slab_common.c

+1 −2
Original line number Diff line number Diff line
@@ -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);