Re: [PATCH] memcg: take reference before releasing rcu_read_lock

[Kamezawa Hiroyuki]

(2013/03/29 19:28), Li Zefan wrote:
> The memcg is not referenced, so it can be destroyed at anytime right
> after we exit rcu read section, so it's not safe to access it.
> 
> To fix this, we call css_tryget() to get a reference while we're still
> in rcu read section.
> 
> This also removes a bogus comment above __memcg_create_cache_enqueue().
> 
> Signed-off-by: Li Zefan <lizefan@xxxxxxxxxx>

Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>


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