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xfs: fix flags argument to rmap lookup when converting shared file rmaps 

[ Upstream commit ea8439899c ]

Pass the same oldext argument (which contains the existing rmapping's
unwritten state) to xfs_rmap_lookup_le_range at the start of
xfs_rmap_convert_shared.  At this point in the code, flags is zero,
which means that we perform lookups using the wrong key.

Fixes: 3f165b334e ("xfs: convert unwritten status of reverse mappings for shared files")
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
5.4-rM2-2.2.x-imx-squashed
Darrick J. Wong 2020-11-08 16:32:43 -08:00 committed by Greg Kroah-Hartman
parent a8ee686597
commit 08e213bef2
1 changed files with 1 additions and 1 deletions
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2
fs/xfs/libxfs/xfs_rmap.c
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@ -1379,7 +1379,7 @@ xfs_rmap_convert_shared(
* record for our insertion point. This will also give us the record for
* start block contiguity tests.
*/
error = xfs_rmap_lookup_le_range(cur, bno, owner, offset, flags,
error = xfs_rmap_lookup_le_range(cur, bno, owner, offset, oldext,
&PREV, &i);
if (error)
goto done;