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authorChristoph Hellwig <hch@lst.de>2017-10-17 14:16:19 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-12-20 10:05:00 +0100
commit02922f3bb37f864ec2057ecc42f1d8c1a394b574 (patch)
treea0e211d915914959881525fb46319fa40b89c1ee
parentf267a1390b419c46007351fae4eccaf00d204ab9 (diff)
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xfs: fix incorrect extent state in xfs_bmap_add_extent_unwritten_real
[ Upstream commit 5e422f5e4fd71d18bc6b851eeb3864477b3d842e ] There was one spot in xfs_bmap_add_extent_unwritten_real that didn't use the passed in new extent state but always converted to normal, leading to wrong behavior when converting from normal to unwritten. Only found by code inspection, it seems like this code path to move partial extent from written to unwritten while merging it with the next extent is rarely exercised. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--fs/xfs/libxfs/xfs_bmap.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index 75884aecf920..d98ba57ef01a 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -2670,7 +2670,7 @@ xfs_bmap_add_extent_unwritten_real(
&i)))
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 0, done);
- cur->bc_rec.b.br_state = XFS_EXT_NORM;
+ cur->bc_rec.b.br_state = new->br_state;
if ((error = xfs_btree_insert(cur, &i)))
goto done;
XFS_WANT_CORRUPTED_GOTO(mp, i == 1, done);