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Date:	Tue, 06 Mar 2012 16:02:28 -0800
From:	"Darrick J. Wong" <>
To:	Andreas Dilger <>,
	Theodore Tso <>,
	"Darrick J. Wong" <>
Cc:	Sunil Mushran <>,
	Amir Goldstein <>,
	Andi Kleen <>,
	Mingming Cao <>,
	Joel Becker <>,,
	Coly Li <>
Subject: [PATCH 43/54] tune2fs: Force MMP update when changing metadata_csum

When changing the metadata_csum flag, always force out a new MMP block.

Signed-off-by: Darrick J. Wong <>
 misc/tune2fs.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/misc/tune2fs.c b/misc/tune2fs.c
index 79b49d9..bec2b6c 100644
--- a/misc/tune2fs.c
+++ b/misc/tune2fs.c
@@ -703,6 +703,7 @@ static void rewrite_metadata_checksums(ext2_filsys fs)
+	ext2fs_mmp_update2(fs, 1);
 	fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
 	if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,

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