From: Chao Yu <chao2.yu@samsung.com>
Date: Mon, 25 May 2015 10:07:02 +0000 (+0800)
Subject: f2fs crypto: check context consistent for rename2
X-Git-Tag: omap-for-v4.3/legacy-v2-signed~156^2~16
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d3baf7c4725601d4689397b9f7dde9e3ddea032d;p=pandora-kernel.git

f2fs crypto: check context consistent for rename2

For exchange rename, we should check context consistent of encryption
between new_dir and old_inode or old_dir and new_inode. Otherwise
inheritance of parent's encryption context will be broken.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
[Jaegeuk Kim: sync with ext4 approach]
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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