[XFS] A bug was found in xfs_bmap_add_extent_unwritten_real(). In a
particular case, the delta param which is supposed to describe the region
where extents have changed was not updated appropriately.
SGI-PV: 984030
SGI-Modid: xfs-linux-melb:xfs-kern:31663a
Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Signed-off-by: Olaf Weber <olaf@sgi.com>
diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index cf4dee0..3c4beb3 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -1740,9 +1740,9 @@
r[1].br_state)))
goto done;
/* new left extent - oldext */
- PREV.br_blockcount =
- new->br_startoff - PREV.br_startoff;
cur->bc_rec.b = PREV;
+ cur->bc_rec.b.br_blockcount =
+ new->br_startoff - PREV.br_startoff;
if ((error = xfs_bmbt_insert(cur, &i)))
goto done;
XFS_WANT_CORRUPTED_GOTO(i == 1, done);