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btrfs: allow cross-subvolume file clone
author
David Sterba
<dsterba@suse.cz>
Mon, 1 Aug 2011 16:11:57 +0000
(18:11 +0200)
committer
Alexander Block
<ablock84@googlemail.com>
Wed, 25 Jul 2012 15:33:09 +0000
(17:33 +0200)
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>
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git.openpandora.org / pandora-kernel.git / commitdiff