From c34e333fd5ca41317c3dab69ed8a212acacd4aeb Mon Sep 17 00:00:00 2001
From: Jaegeuk Kim <jaegeuk.kim@samsung.com>
Date: Tue, 3 Sep 2013 09:46:45 +0900
Subject: [PATCH] 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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