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

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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>

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Darrick J. Wong 2017-12-10 18:03:55 -08:00

parent 73353f486c

commit 9d40fba8b2

1 changed files with 3 additions and 0 deletions

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fs/xfs/xfs_reflink.c

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