| commit | 8c81bd8f586c46eaf114758a78d82895a2b081c2 | [log] [tgz] |
|---|---|---|
| author | Darrick J. Wong <darrick.wong@oracle.com> | Sat Oct 17 16:16:02 2015 -0400 |
| committer | Theodore Ts'o <tytso@mit.edu> | Sat Oct 17 16:16:02 2015 -0400 |
| tree | f23c8117906fa29aa0ad3890dd5a2faa8d8ed811 | |
| parent | 8b4953e13f4c5d9a3c869f5fca7d51e1700e7db0 [diff] |
ext4: store checksum seed in superblock Allow the filesystem to store the metadata checksum seed in the superblock and add an incompat feature to say that we're using it. This enables tune2fs to change the UUID on a mounted metadata_csum FS without having to (racy!) rewrite all disk metadata. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Theodore Ts'o <tytso@mit.edu>