On Tue, Apr 13, 2021 at 06:04:42PM -0700, Darrick J. Wong wrote: > From: Darrick J. Wong <djwong@xxxxxxxxxx> > > If a system configuration tool such as systemd sets up the io cgroup > controller for its own purposes, it's possible that the last line of > this test will not be able to remove the io controller from the system > configuration. This causes the test to fail even though the inability > to tear down systemd should not be considered (in this case) a failure. > > Change this test to set the "io" component of subtree control back to > whatever it was when the test started. Looks good, Reviewed-by: Christoph Hellwig <hch@xxxxxx>