]> git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/commit
Btrfs: introduce uuid-tree-gen field
authorStefan Behrens <sbehrens@giantdisaster.de>
Thu, 15 Aug 2013 15:11:22 +0000 (17:11 +0200)
committerChris Mason <chris.mason@fusionio.com>
Sun, 1 Sep 2013 12:15:57 +0000 (08:15 -0400)
commit26432799c902b76e87f68f5c88f2146a78ba84af
tree42f9421a2bb76eada9778ef81d50e3f52656378b
parent803b2f54fb4faf6d76fca43e59bcc555d9713cd4
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>
fs/btrfs/ctree.h
fs/btrfs/transaction.c