From e03b07d9084d03e896b7f1a598a7f6aa18f6eeda Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Wed, 1 Apr 2015 19:38:20 -0700
Subject: [PATCH] f2fs: do not recover wrong data index

During the roll-forward recovery, if we found a new data index written fsync
lastly, we need to recover new block address.
But, if that address was corrupted, we should not recover that.
Otherwise, f2fs gets kernel panic from:

 In check_index_in_prev_nodes(),

    sentry = get_seg_entry(sbi, segno);
             --------------------------> out-of-range segno.

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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