On Tue, May 09, 2017 at 02:22:47PM +0200, Jan Kara wrote: > Quota files have special ranking of i_data_sem lock. We inform lockdep > about it when turning on quotas however when turning quotas off, we > don't clear the lockdep subclass from i_data_sem lock and thus when the > inode gets later reused for a normal file or directory, lockdep gets > confused and complains about possible deadlocks. Fix the problem by > resetting lockdep subclass of i_data_sem on quota off. > > Fixes: daf647d2dd58cec59570d7698a45b98e580f2076 > Reported-and-tested-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx> > Reviewed-by: Andreas Dilger <adilger@xxxxxxxxx> > Signed-off-by: Jan Kara <jack@xxxxxxx> Thanks, applied. - Ted
