From f1e33a041e39535571cd19f4799c3673868f2118 Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Sat, 18 Oct 2014 23:41:38 -0700
Subject: [PATCH] f2fs: use kmap_atomic instead of kmap

For better performance, we need to use kmap_atomic instead of kmap.

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