Messages in this thread | | | Date | Mon, 12 Mar 2012 11:12:08 -0700 | From | Tejun Heo <> | Subject | Re: [PATCH] blk-cgroup: Call cgroup_path only under cgroup lock |
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On Mon, Mar 12, 2012 at 08:06:53PM +0200, Sasha Levin wrote: > On Mon, Mar 12, 2012 at 8:04 PM, Tejun Heo <tj@kernel.org> wrote: > > Hello, Sasha. > > > > On Mon, Mar 12, 2012 at 04:01:18PM -0400, Sasha Levin wrote: > >> Since we can't keep rcu read lock during blkg_alloc(), we currently > >> call cgroup_path() without any locks at all. > >> > >> This patch adds cgroup locking before calling cgroup_path. > >> > >> This also fixes a lockdep warning on boot. > >> > >> Signed-off-by: Sasha Levin <levinsasha928@gmail.com> > > > > Which branch is this against? There's already pending stat update > > patch from Vivek which fix this problem along with the percpu > > allocation problem. > > > > Thanks. > > I've fixed it for linux-next.
Jens, the pending stats patchset should fix this problem too. Can you please put them on top of other blkcg updates?
Thanks.
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