From a2e7d1bfebe0bc349a3eb9d01caac026627f095e Mon Sep 17 00:00:00 2001
From: Chao Yu <chao2.yu@samsung.com>
Date: Thu, 5 Feb 2015 17:50:30 +0800
Subject: [PATCH] f2fs: introduce f2fs_map_bh to clean codes of
 check_extent_cache

This patch introduces f2fs_map_bh to clean codes of check_extent_cache.

v2:
 o cleanup f2fs_map_bh pointed out by Jaegeuk Kim.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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