From: Christoph Hellwig Date: Tue, 17 Oct 2017 21:16:19 +0000 (-0700) Subject: xfs: fix incorrect extent state in xfs_bmap_add_extent_unwritten_real X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=5e422f5e4fd71d18bc6b851eeb3864477b3d842e;p=openwrt%2Fstaging%2Fblogic.git xfs: fix incorrect extent state in xfs_bmap_add_extent_unwritten_real 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 Reviewed-by: Brian Foster Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong --- diff --git a/fs/xfs/libxfs/xfs_bmap.c b/fs/xfs/libxfs/xfs_bmap.c index 89263797cf32..a3cc8afed367 100644 --- a/fs/xfs/libxfs/xfs_bmap.c +++ b/fs/xfs/libxfs/xfs_bmap.c @@ -2560,7 +2560,7 @@ 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);