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[PATCH 2/3] xfs: inode unlink does not set AGI buffer type

To: xfs@xxxxxxxxxxx
Subject: [PATCH 2/3] xfs: inode unlink does not set AGI buffer type
From: Dave Chinner <david@xxxxxxxxxxxxx>
Date: Wed, 21 Jan 2015 11:39:39 +1100
Cc: jack@xxxxxxx
Delivered-to: xfs@xxxxxxxxxxx
In-reply-to: <1421800780-26008-1-git-send-email-david@xxxxxxxxxxxxx>
References: <1421800780-26008-1-git-send-email-david@xxxxxxxxxxxxx>
From: Dave Chinner <dchinner@xxxxxxxxxx>

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.

Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
---
 fs/xfs/xfs_inode.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 573b49c..f616c8f 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -2051,6 +2051,7 @@ 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;
@@ -2142,6 +2143,7 @@ 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 {
-- 
2.0.0

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