xfs: inode unlink does not set AGI buffer type

This leads to log recovery throwing errors like:

XFS (md0): Mounting V5 Filesystem
XFS (md0): Starting recovery (logdev: internal)
XFS (md0): Unknown buffer type 0!
XFS (md0): _xfs_buf_ioapply: no ops on block 0xaea8802/0x1
ffff8800ffc53800: 58 41 47 49 .....

Which is the AGI buffer magic number.

Ensure that we set the type appropriately in both unlink list
addition and removal.

cc: <stable@vger.kernel.org> # 3.10 to current
Tested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 41f804e740d7..d745e1a9bf2e 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1995,6 +1995,7 @@ xfs_iunlink(
         agi->agi_unlinked[bucket_index] = cpu_to_be32(agino);
         offset = offsetof(xfs_agi_t, agi_unlinked) +
                 (sizeof(xfs_agino_t) * bucket_index);
+        xfs_trans_buf_set_type(tp, agibp, XFS_BLFT_AGI_BUF);
         xfs_trans_log_buf(tp, agibp, offset,
                           (offset + sizeof(xfs_agino_t) - 1));
         return 0;
@@ -2086,6 +2087,7 @@ xfs_iunlink_remove(
                 agi->agi_unlinked[bucket_index] = cpu_to_be32(next_agino);
                 offset = offsetof(xfs_agi_t, agi_unlinked) +
                         (sizeof(xfs_agino_t) * bucket_index);
+                xfs_trans_buf_set_type(tp, agibp, XFS_BLFT_AGI_BUF);
                 xfs_trans_log_buf(tp, agibp, offset,
                                   (offset + sizeof(xfs_agino_t) - 1));
         } else {