| commit | 26432799c902b76e87f68f5c88f2146a78ba84af | [log] [tgz] |
|---|---|---|
| author | Stefan Behrens <sbehrens@giantdisaster.de> | Thu Aug 15 17:11:22 2013 +0200 |
| committer | Chris Mason <chris.mason@fusionio.com> | Sun Sep 01 08:15:57 2013 -0400 |
| tree | 42f9421a2bb76eada9778ef81d50e3f52656378b | |
| parent | 803b2f54fb4faf6d76fca43e59bcc555d9713cd4 [diff] |
Btrfs: introduce uuid-tree-gen field In order to be able to detect the case that a filesystem is mounted with an old kernel, add a uuid-tree-gen field like the free space cache is doing it. It is part of the super block and written with each commit. Old kernels do not know this field and don't update it. Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de> Signed-off-by: Josef Bacik <jbacik@fusionio.com> Signed-off-by: Chris Mason <chris.mason@fusionio.com>