From: Jan Schmidt <list.btrfs@jan-o-sch.net>
Date: Wed, 16 May 2012 15:00:02 +0000 (+0200)
Subject: Btrfs: dummy extent buffers for tree mod log
X-Git-Tag: v3.5-rc1~17^2^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=815a51c74ad14864d0a8fff5eea983819c18feae;p=pandora-kernel.git

Btrfs: dummy extent buffers for tree mod log

The tree modification log needs two ways to create dummy extent buffers,
once by allocating a fresh one (to rebuild an old root) and once by
cloning an existing one (to make private rewind modifications) to it.

Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
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