From: Li Zefan <lizf@cn.fujitsu.com>
Date: Thu, 14 Jul 2011 03:16:00 +0000 (+0000)
Subject: Btrfs: copy string correctly in INO_LOOKUP ioctl
X-Git-Tag: v3.1-rc1~82^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=77906a5075a4eb767026c2e07b1a412d08aea5be;p=pandora-kernel.git

Btrfs: copy string correctly in INO_LOOKUP ioctl

Memory areas [ptr, ptr+total_len] and [name, name+total_len]
may overlap, so it's wrong to use memcpy().

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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