[PATCH 2/2] xfs: xfs_bmap_finish_one should map unwritten extents properly

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From: Darrick J. Wong <djwong@xxxxxxxxxx>

The deferred bmap work state and the log item can transmit unwritten
state, so the XFS_BMAP_MAP handler must map in extents with that
unwritten state.

Signed-off-by: Darrick J. Wong <djwong@xxxxxxxxxx>
---
 fs/xfs/libxfs/xfs_bmap.c |    2 ++
 1 file changed, 2 insertions(+)


diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c
index f1715be091b3..5d9e0af35017 100644
--- a/fs/xfs/libxfs/xfs_bmap.c
+++ b/fs/xfs/libxfs/xfs_bmap.c
@@ -6227,6 +6227,8 @@ xfs_bmap_finish_one(
 
 	switch (bi->bi_type) {
 	case XFS_BMAP_MAP:
+		if (bi->bi_bmap.br_state == XFS_EXT_UNWRITTEN)
+			flags |= XFS_BMAPI_PREALLOC;
 		error = xfs_bmapi_remap(tp, bi->bi_owner, bmap->br_startoff,
 				bmap->br_blockcount, bmap->br_startblock,
 				flags);




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