From c05086506f2204bcf02c9d3eb7950cdf0d8a3bef Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk@kernel.org>
Date: Wed, 7 Jan 2015 14:07:36 -0800
Subject: [PATCH] f2fs: add spin_lock to cover radix operations in IO tracer

This patch adds spin_lock to cover radix tree operations in IO tracer.

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