tree 211491d1ec8fca4e39b4cf58266b2a6e005e8a61
parent 73353f486c9b5b2407ec32be1004174dbbaf6c18
author Darrick J. Wong <darrick.wong@oracle.com> 1512957835 -0800
committer Darrick J. Wong <darrick.wong@oracle.com> 1513272011 -0800

xfs: avoid infinite loop when cancelling CoW blocks after writeback failure

When we're cancelling a cow range, we don't always delete each extent
that we iterate, so we have to move icur backwards in the list to avoid
an infinite loop.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>