From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Tue, 28 May 2013 00:19:22 +0000 (+0900)
Subject: f2fs: fix dentry recovery routine
X-Git-Tag: omap-for-v3.11/fixes-for-merge-window~81^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6b8213d9a4ca0d7a02a38757068ba79cd96206f0;p=pandora-kernel.git

f2fs: fix dentry recovery routine

The error scenario is:
1. create /a
(1.a link /a /b)
2. sync
3. unlinke /a
4. create /a
5. fsync /a
6. Sudden power-off

When the f2fs recovers the fsynced dentry, /a, we discover an exsiting dentry at
f2fs_find_entry() in recover_dentry().

In such the case, we should unlink the existing dentry and its inode
and then recover newly created dentry.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
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