[XFS] Fix extent list corruption in xfs_iext_irec_compact_full().

If we don't move all the records from the next buffer into the current
buffer then we need to update the er_extoff field of the next buffer as we
shift the remaining records to the start of the buffer.

SGI-PV: 987159

SGI-Modid: xfs-linux-melb:xfs-kern:32165a

Signed-off-by: Lachlan McIlroy <[email protected]>
Signed-off-by: Eric Sandeen <[email protected]>
Signed-off-by: Russell Cattelan <[email protected]>

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 00e80df9dd9d727191f15fefc79cd92055d4e9d6..419cfc2eacb3ae522b00e7ce0750252947d8ab8b 100644 (file)
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -4584,6 +4584,7 @@ xfs_iext_irec_compact_full(
                                        (XFS_LINEAR_EXTS -
                                                erp_next->er_extcount) *
                                        sizeof(xfs_bmbt_rec_t));
+                               erp_next->er_extoff += ext_diff;
                        }
                }