On Wed, Dec 15, 2021 at 05:09:26PM -0800, Darrick J. Wong wrote: > From: Darrick J. Wong <djwong@xxxxxxxxxx> > > While debugging some very strange rmap corruption reports in connection > with the online directory repair code. I root-caused the error to the > following incorrect sequence: > > <start repair transaction> > <expand directory, causing a deferred rmap to be queued> > <roll transaction> > <cancel transaction> > > Obviously, we should have committed the transaction instead of > cancelling it. Thinking more broadly, however, xfs_trans_cancel should > have warned us that we were throwing away work item that we already > committed to performing. This is not correct, and we need to shut down > the filesystem. > > Change xfs_trans_cancel to complain in the loudest manner if we're > cancelling any transaction with deferred work items attached. Looks good, Reviewed-by: Christoph Hellwig <hch@xxxxxx>
