tree 82be478b5d25808ea823bcee1efccbfbec05840b
parent 28a33cbc24e4256c143dce96c7d93bf423229f92
author David Sterba <dsterba@suse.cz> 1312215117 +0200
committer Alexander Block <ablock84@googlemail.com> 1343230389 +0200

btrfs: allow cross-subvolume file clone

Lift the EXDEV condition and allow different root trees for files being
cloned, then pass source inode's root when searching for extents.
Cloning is not allowed to cross vfsmounts, ie. when two subvolumes from
one filesystem are mounted separately.

Signed-off-by: David Sterba <dsterba@suse.cz>