On Wed, Jan 16, 2019 at 11:00:57AM -0500, Josef Bacik wrote: > qgroups will do the old roots lookup at delayed ref time, which could be > while walking down the extent root while running a delayed ref. This > should be fine, except we specifically lock eb's in the backref walking > code irrespective of path->skip_locking, which deadlocks the system. > Fix up the backref code to honor path->skip_locking, nobody will be > modifying the commit_root when we're searching so it's completely safe > to do. Thanks, > > Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx> Overnight test of the untar/snap/snapdel/rm stress test is fine now, there's a lockdep warning in the logs that I think have seen already.
