Patchwork [35/54] mke2fs: Record the checksum algorithm in use in the superblock

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Submitter Darrick J. Wong
Date March 7, 2012, 12:01 a.m.
Message ID <20120307000129.11945.56042.stgit@elm3b70.beaverton.ibm.com>
Download mbox | patch
Permalink /patch/145102/
State Deferred
Delegated to: Theodore Ts'o
Headers show

Comments

Darrick J. Wong - March 7, 2012, 12:01 a.m.
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@us.ibm.com>
---
 misc/mke2fs.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)



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Patch

diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index 28485e3..92b80e9 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -2422,6 +2422,10 @@  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);