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Date:	Sat, 07 Jan 2012 00:36:40 -0800
From:	"Darrick J. Wong" <djwong@...ibm.com>
To:	Andreas Dilger <adilger.kernel@...ger.ca>,
	Theodore Tso <tytso@....edu>,
	"Darrick J. Wong" <djwong@...ibm.com>
Cc:	Sunil Mushran <sunil.mushran@...cle.com>,
	Amir Goldstein <amir73il@...il.com>,
	Andi Kleen <andi@...stfloor.org>,
	Mingming Cao <cmm@...ibm.com>,
	Joel Becker <jlbec@...lplan.org>, linux-ext4@...r.kernel.org,
	Coly Li <colyli@...il.com>
Subject: [PATCH 35/51] mke2fs: Record the checksum algorithm in use in the
	superblock

Record the type of checksum algorithm we're using for metadata in the
superblock when creating a filesystem.

Signed-off-by: Darrick J. Wong <djwong@...ibm.com>
---
 misc/mke2fs.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)


diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index 7888a2f..14c047a 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -2419,6 +2419,10 @@ int main (int argc, char *argv[])
 			sizeof(fs->super->s_last_mounted));
 	}
 
+	if (EXT2_HAS_RO_COMPAT_FEATURE(fs->super,
+				       EXT4_FEATURE_RO_COMPAT_METADATA_CSUM))
+		fs->super->s_checksum_type = EXT2_CRC32C_CHKSUM;
+
 	if (!quiet || noaction)
 		show_stats(fs);
 

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