f2fs: use kmap_atomic instead of kmap
authorJaegeuk Kim <jaegeuk@kernel.org>
Sun, 19 Oct 2014 06:41:38 +0000 (23:41 -0700)
committerJaegeuk Kim <jaegeuk@kernel.org>
Tue, 4 Nov 2014 00:07:35 +0000 (16:07 -0800)
For better performance, we need to use kmap_atomic instead of kmap.

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

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