On Mon 05-08-13 13:05:42, Andrew Morton wrote:
> Subject: + 
> memcg-dont-initialize-kmem-cache-destroying-work-for-root-caches.patch added 
> to -mm tree
> To: 
> [email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected],[email protected]
> From: [email protected]
> Date: Mon, 05 Aug 2013 13:05:42 -0700
> 
> 
> The patch titled
>      Subject: memcg: don't initialize kmem-cache destroying work for root 
> caches
> has been added to the -mm tree.  Its filename is
>      memcg-dont-initialize-kmem-cache-destroying-work-for-root-caches.patch
> 
> This patch should soon appear at
>     
> http://ozlabs.org/~akpm/mmots/broken-out/memcg-dont-initialize-kmem-cache-destroying-work-for-root-caches.patch
> and later at
>     
> http://ozlabs.org/~akpm/mmotm/broken-out/memcg-dont-initialize-kmem-cache-destroying-work-for-root-caches.patch
> 
> Before you just go and hit "reply", please:
>    a) Consider who else should be cc'ed
>    b) Prefer to cc a suitable mailing list as well
>    c) Ideally: find the original patch on the mailing list and do a
>       reply-to-all to that, adding suitable additional cc's
> 
> *** Remember to use Documentation/SubmitChecklist when testing your code ***
> 
> The -mm tree is included into linux-next and is updated
> there every 3-4 working days
> 
> ------------------------------------------------------
> From: Andrey Vagin <[email protected]>
> Subject: memcg: don't initialize kmem-cache destroying work for root caches
> 
> struct memcg_cache_params has a union.  Different parts of this union are
> used for root and non-root caches.  A part with destroying work is used
> only for non-root caches.
> 
> I fixed the same problem in another place v3.9-rc1-16204-gf101a94, but
> didn't notice this one.
> 
> Signed-off-by: Andrey Vagin <[email protected]>
> Cc: Glauber Costa <[email protected]>
> Cc: Johannes Weiner <[email protected]>
> Cc: Michal Hocko <[email protected]>
> Cc: Balbir Singh <[email protected]>
> Cc: KAMEZAWA Hiroyuki <[email protected]>
> Cc: Konstantin Khlebnikov <[email protected]>
> Cc: <[email protected]>    [3.9.x]
> Signed-off-by: Andrew Morton <[email protected]>

Acked-by: Michal Hocko <[email protected]>

> ---
> 
>  mm/memcontrol.c |    4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff -puN 
> mm/memcontrol.c~memcg-dont-initialize-kmem-cache-destroying-work-for-root-caches
>  mm/memcontrol.c
> --- 
> a/mm/memcontrol.c~memcg-dont-initialize-kmem-cache-destroying-work-for-root-caches
> +++ a/mm/memcontrol.c
> @@ -3195,11 +3195,11 @@ int memcg_register_cache(struct mem_cgro
>       if (!s->memcg_params)
>               return -ENOMEM;
>  
> -     INIT_WORK(&s->memcg_params->destroy,
> -                     kmem_cache_destroy_work_func);
>       if (memcg) {
>               s->memcg_params->memcg = memcg;
>               s->memcg_params->root_cache = root_cache;
> +             INIT_WORK(&s->memcg_params->destroy,
> +                             kmem_cache_destroy_work_func);
>       } else
>               s->memcg_params->is_root_cache = true;
>  
> _
> 
> Patches currently in -mm which might be from [email protected] are
> 
> memcg-dont-initialize-kmem-cache-destroying-work-for-root-caches.patch
> move-exit_task_namespaces-outside-of-exit_notify-fix.patch
> procfs-remove-extra-call-of-dir_emit_dots.patch
> linux-next.patch
> 

-- 
Michal Hocko
SUSE Labs
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