Messages in this thread | | | Date | Fri, 7 May 2010 08:57:41 +0200 | From | Jens Axboe <> | Subject | Re: [PATCH 5/5] blk-cgroup: Fix an RCU warning in blkiocg_create() |
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On Fri, May 07 2010, Li Zefan wrote: > Paul E. McKenney wrote: > > On Thu, Apr 22, 2010 at 05:32:28PM +0800, Li Zefan wrote: > >> with CONFIG_PROVE_RCU=y, a warning can be triggered: > >> > >> # mount -t cgroup -o blkio xxx /mnt > >> # mkdir /mnt/subgroup > >> > >> ... > >> kernel/cgroup.c:4442 invoked rcu_dereference_check() without protection! > >> ... > >> > >> To fix this, we avoid caling css_depth() here, which is a bit simpler > >> than the original code. > > > > Queued for 2.6.34, thank you! > > > > Seems neither you nor Jens queued this patch...
I've included it now, thanks.
-- Jens Axboe
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