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slab: Update the kmem_cache_create documentation regarding the name parameter

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kmem_cache implementations like slub are allowed to merge multiple
caches but only the initial name is preserved. Therefore,
kmem_cache_name() is not guaranteed to return the same pointer passed to
the former function. This patch updates the documentation to make this
clearer.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
This commit is contained in:
Catalin Marinas 2008-11-21 12:56:22 +00:00 committed by Pekka Enberg
parent ed313489ba
commit 249da16658
1 changed files with 2 additions and 0 deletions
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mm/slab.c
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@ -2123,6 +2123,8 @@ static int __init_refok setup_cpu_cache(struct kmem_cache *cachep)
*
* @name must be valid until the cache is destroyed. This implies that
* the module calling this has to destroy the cache before getting unloaded.
* Note that kmem_cache_name() is not guaranteed to return the same pointer,
* therefore applications must manage it themselves.
*
* The flags are
*