On Mon, May 18, 2020 at 05:49:17PM -0700, Darrick J. Wong wrote: > From: Darrick J. Wong <darrick.wong@xxxxxxxxxx> > > During writeback, it's possible for the quota block reservation in > xfs_iomap_write_unwritten to fail with EDQUOT because we hit the quota > limit. This causes writeback errors for data that was already written > to disk, when it's not even guaranteed that the bmbt will expand to > exceed the quota limit. Irritatingly, this condition is reported to > userspace as EIO by fsync, which is confusing. > > We wrote the data, so allow the reservation. That might put us slightly > above the hard limit, but it's better than losing data after a write. > > Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> Looks good: Reviewed-by: Christoph Hellwig <hch@xxxxxx>
