On Thu, Jan 07, 2016 at 04:25:42PM +0100, Christoph Hellwig wrote: > On Wed, Jan 06, 2016 at 04:32:27PM -0800, Darrick J. Wong wrote: > > Ok. I spent a couple of days trying to find all the places where we need to > > delete CoW reservations (hole punch, truncate, etc.) and found some places > > where the code was leaving reservations behind in the CoW fork (most notable > > truncate). I also made the inode eviction code purge any CoW leftovers, so > > that should all go away. > > Can you send that part out for NFS testing? Ok, I've uploaded the latest kernel + xfstests to github: https://github.com/djwong/linux/commits/for-dave https://github.com/djwong/xfstests/tree/for-dave (Big pile of new tests to try to exercise the cow cancellation code.) > > > I also wrote some more xfstests that try to hit all the CoW-cancelling code > > paths (fpunch, fzero, fcollapse, finsert, truncate, -EIO) to smoke test all > > that. By the way, do you have a testcase handy for the "non-blocking writeback > > EAGAIN" case? I'm guessing that we could hit that pretty easily by lowering > > dirty_background_* and dirtying a lot of pages while reflinking? > > I did hit it pretty easily testing over NFS to a local nfs server with > xfstests. Hmm. If my latest round of fixes didn't get this one, I'll see next week if I can get the NFS stuff working so I can test it directly. --D > > _______________________________________________ > xfs mailing list > xfs@xxxxxxxxxxx > http://oss.sgi.com/mailman/listinfo/xfs _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
