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Subject[PATCH 4.19 054/101] xfs: fix flags argument to rmap lookup when converting shared file rmaps
Date
From: Darrick J. Wong <darrick.wong@oracle.com>

[ Upstream commit ea8439899c0b15a176664df62aff928010fad276 ]

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: 3f165b334e51 ("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>
---
fs/xfs/libxfs/xfs_rmap.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/xfs/libxfs/xfs_rmap.c b/fs/xfs/libxfs/xfs_rmap.c
index 245af452840ef..ab3e72e702f00 100644
--- a/fs/xfs/libxfs/xfs_rmap.c
+++ b/fs/xfs/libxfs/xfs_rmap.c
@@ -1387,7 +1387,7 @@ 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;
--
2.27.0


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