xfs: log proper length of superblock

Eric Sandeen · djwong · commit 6f4ff81a4602 · 2019-09-24T08:00:36.000-07:00
xfs_trans_log_buf takes first byte, last byte as args.  In this
case, it should be from 0 to sizeof() - 1.

Signed-off-by: Eric Sandeen &lt;sandeen@redhat.com&gt;
Reviewed-by: Dave Chinner &lt;dchinner@redhat.com&gt;
Reviewed-by: Darrick J. Wong &lt;darrick.wong@oracle.com&gt;
Signed-off-by: Darrick J. Wong &lt;darrick.wong@oracle.com&gt;
diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
@@ -928,7 +928,7 @@ xfs_log_sb(
 
 	xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb);
 	xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SB_BUF);
-	xfs_trans_log_buf(tp, bp, 0, sizeof(struct xfs_dsb));
+	xfs_trans_log_buf(tp, bp, 0, sizeof(struct xfs_dsb) - 1);
 }
 
 /*

Original file line number	Diff line number	Diff line change
`@@ -928,7 +928,7 @@ xfs_log_sb(`
`928`	`928`
`929`	`929`	`xfs_sb_to_disk(XFS_BUF_TO_SBP(bp), &mp->m_sb);`
`930`	`930`	`xfs_trans_buf_set_type(tp, bp, XFS_BLFT_SB_BUF);`
`931`		`- xfs_trans_log_buf(tp, bp, 0, sizeof(struct xfs_dsb));`
	`931`	`+ xfs_trans_log_buf(tp, bp, 0, sizeof(struct xfs_dsb) - 1);`
`932`	`932`	`}`
`933`	`933`
`934`	`934`	`/*`