From: Yan, Zheng <zheng.yan@oracle.com>
Date: Thu, 24 Sep 2009 13:17:31 +0000 (-0400)
Subject: Btrfs: don't rename file into dummy directory
X-Git-Tag: v2.6.32-rc1~57^2^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f679a84034be6f7da123be786bbd8838bf3e9207;p=pandora-kernel.git

Btrfs: don't rename file into dummy directory

A recent change enforces only one access point to each subvolume. The first
directory entry (the one added when the subvolume/snapshot was created) is
treated as valid access point, all other subvolume links are linked to dummy
empty directories. The dummy directories are temporary inodes that only in
memory, so we can not rename file into them.

Signed-off-by: Yan Zheng <zheng.yan@oracle.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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