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KFENCE: cleanup kfence_guarded_alloc() after CONFIG_SLAB removal 

Some struct slab fields are initialized differently for SLAB and SLUB so
we can simplify with SLUB being the only remaining allocator.

Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Marco Elver <elver@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Tested-by: David Rientjes <rientjes@google.com>
Reviewed-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Tested-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
This commit is contained in:
Vlastimil Babka 2023-10-02 16:28:44 +02:00
parent 72786c0a3d
commit a745b067db
1 changed files with 0 additions and 4 deletions
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4
mm/kfence/core.c
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@ -463,11 +463,7 @@ static void *kfence_guarded_alloc(struct kmem_cache *cache, size_t size, gfp_t g
/* Set required slab fields. */ /* Set required slab fields. */
slab = virt_to_slab((void *)meta->addr); slab = virt_to_slab((void *)meta->addr);
slab->slab_cache = cache; slab->slab_cache = cache;
#if defined(CONFIG_SLUB)
slab->objects = 1; slab->objects = 1;
#elif defined(CONFIG_SLAB)
slab->s_mem = addr;
#endif
/* Memory initialization. */ /* Memory initialization. */
set_canary(meta); set_canary(meta);