From 52c2db3f95ff8e8d9650885d6d66b8258ded1e38 Mon Sep 17 00:00:00 2001
From: Changman Lee <cm224.lee@samsung.com>
Date: Wed, 20 Feb 2013 07:47:06 +0900
Subject: [PATCH] f2fs: check the level before calling get_nid function

The caller of get_nid should be careful not to put lower value than
NODE_DIR1_BLOCK in case of level is zero.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Reviewed-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
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Reading git-format-patch failed