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mm/slab.c: fix comments 

Current struct kmem_cache has no 'lock' field, and slab page is managed by
struct kmem_cache_node, which has 'list_lock' field.

Clean up the related comment.

Signed-off-by: Wang Sheng-Hui <shhuiw@gmail.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Wang Sheng-Hui 2014-08-06 16:04:46 -07:00 committed by Linus Torvalds
parent 928cec9cd6
commit 8a7d9b4306
1 changed files with 5 additions and 4 deletions
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mm/slab.c
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@ -1611,7 +1611,8 @@ slab_out_of_memory(struct kmem_cache *cachep, gfp_t gfpflags, int nodeid)
}
/*
* Interface to system's page allocator. No need to hold the cache-lock.
* Interface to system's page allocator. No need to hold the
* kmem_cache_node ->list_lock.
*
* If we requested dmaable memory, we will get it. Even if we
* did not request dmaable memory, we might get it, but that
@ -1913,9 +1914,9 @@ static void slab_destroy_debugcheck(struct kmem_cache *cachep,
* @cachep: cache pointer being destroyed
* @page: page pointer being destroyed
*
* Destroy all the objs in a slab, and release the mem back to the system.
* Before calling the slab must have been unlinked from the cache. The
* cache-lock is not held/needed.
* Destroy all the objs in a slab page, and release the mem back to the system.
* Before calling the slab page must have been unlinked from the cache. The
* kmem_cache_node ->list_lock is not held/needed.
*/
static void slab_destroy(struct kmem_cache *cachep, struct page *page)
{