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Date: Fri, 21 Nov 2008 12:56:22 +0000 From: Catalin Marinas <catalin.marinas@....com> To: linux-kernel@...r.kernel.org Cc: Pekka Enberg <penberg@...helsinki.fi> Subject: [PATCH] Update the kmem_cache_create documentation regarding the name parameter 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@....com> Cc: Pekka Enberg <penberg@...helsinki.fi> --- mm/slab.c | 2 ++ 1 files changed, 2 insertions(+), 0 deletions(-) diff --git a/mm/slab.c b/mm/slab.c index 4887f1b..8924a03 100644 --- a/mm/slab.c +++ b/mm/slab.c @@ -2124,6 +2124,8 @@ 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 * -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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