On Fri, Apr 07, 2017 at 04:51:55PM +0800, Zefan Li wrote: > We end up using the same cgroup root for two different superblocks, > so percpu_ref_kill() will be called twice on the same root when the > two superblocks are destroyed. > > We should fix to make sure the superblock pinning is really successful. > > Cc: stable@xxxxxxxxxxxxxxx # 3.16+ > Reported-by: Dmitry Vyukov <dvyukov@xxxxxxxxxx> > Signed-off-by: Zefan Li <lizefan@xxxxxxxxxx> Applied to cgroup/for-4.11-fixes. Thanks. -- tejun -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html