linux-kernel - [PATCH 4.9 81/83] xfs: set AGI buffer type in xlog_recover_clear_agi

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Message-Id: <20170104200449.807838417@linuxfoundation.org>
Date:   Wed,  4 Jan 2017 21:07:13 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Eric Sandeen <sandeen@...hat.com>,
        Brian Foster <bfoster@...hat.com>,
        Christoph Hellwig <hch@....de>,
        Dave Chinner <david@...morbit.com>
Subject: [PATCH 4.9 81/83] xfs: set AGI buffer type in xlog_recover_clear_agi_bucket

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eric Sandeen <sandeen@...deen.net>

commit 6b10b23ca94451fae153a5cc8d62fd721bec2019 upstream.

xlog_recover_clear_agi_bucket didn't set the
type to XFS_BLFT_AGI_BUF, so we got a warning during log
replay (or an ASSERT on a debug build).

    XFS (md0): Unknown buffer type 0!
    XFS (md0): _xfs_buf_ioapply: no ops on block 0xaea8802/0x1

Fix this, as was done in f19b872b for 2 other locations
with the same problem.

Signed-off-by: Eric Sandeen <sandeen@...hat.com>
Reviewed-by: Brian Foster <bfoster@...hat.com>
Reviewed-by: Christoph Hellwig <hch@....de>
Signed-off-by: Dave Chinner <david@...morbit.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 fs/xfs/xfs_log_recover.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -4929,6 +4929,7 @@ xlog_recover_clear_agi_bucket(
 	agi->agi_unlinked[bucket] = cpu_to_be32(NULLAGINO);
 	offset = offsetof(xfs_agi_t, agi_unlinked) +
 		 (sizeof(xfs_agino_t) * bucket);
+	xfs_trans_buf_set_type(tp, agibp, XFS_BLFT_AGI_BUF);
 	xfs_trans_log_buf(tp, agibp, offset,
 			  (offset + sizeof(xfs_agino_t) - 1));