| commit | 66457fcb842300e757a69c49c2eb4d8e335be34c | [log] [tgz] |
|---|---|---|
| author | Darrick J. Wong <darrick.wong@oracle.com> | Sat Dec 14 20:51:04 2013 -0500 |
| committer | Theodore Ts'o <tytso@mit.edu> | Sat Dec 14 20:51:04 2013 -0500 |
| tree | 6bb3a38a391b562a7751c6d79aeeda00608f094d | |
| parent | a9825cfe945e6dc6e300f89e7e613b80afde0189 [diff] |
tune2fs: forbid changing uuid on an uninit_bg filesystem The old uninit_bg checksums depend on the UUID, so prohibit changes to the UUID if a checksumming filesystem is mounted, because this introduces a nasty race where the kernel and tune2fs are both trying to rewrite group descriptors at the same time, with different ideas about what the UUID is. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>