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SubjectRe: [PATCH] Update the kmem_cache_create documentation regarding the name parameter
FromPekka Enberg <>
DateMon, 24 Nov 2008 09:56:04 +0200
Hi Catalin,

On Fri, 2008-11-21 at 12:56 +0000, Catalin Marinas wrote:
> 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>
> Cc: Pekka Enberg <penberg@cs.helsinki.fi>

Applied, thanks!

> ---
> 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
> *
>



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