From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Tue, 3 Sep 2013 00:46:45 +0000 (+0900)
Subject: f2fs: trigger GC when there are prefree segments
X-Git-Tag: v3.12-rc1~127^2~3
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c34e333fd5ca41317c3dab69ed8a212acacd4aeb;p=pandora-kernel.git

f2fs: trigger GC when there are prefree segments

Previously, f2fs conducts SSR when free_sections() < overprovision_sections.
But, even though there are a lot of prefree segments, it can consider SSR only.
So, let's consider the number of prefree segments too for triggering SSR.

Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
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