From: Eric Sandeen <sandeen@redhat.com>
Date: Mon, 23 Sep 2019 23:53:37 +0000 (-0700)
Subject: xfs: log proper length of superblock
X-Git-Tag: v5.4-rc1~42^2~1
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6f4ff81a4602dcfba436c6e2307d61ce9e9f652c;p=platform%2Fkernel%2Flinux-rpi.git

xfs: log proper length of superblock

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 <sandeen@redhat.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
---

diff --git a/fs/xfs/libxfs/xfs_sb.c b/fs/xfs/libxfs/xfs_sb.c
index a08dd8f..ac6cdca 100644
--- 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);
 }
 
 /*