From: Chao Yu <chao2.yu@samsung.com>
Date: Thu, 27 Feb 2014 11:12:24 +0000 (+0800)
Subject: f2fs: readahead contiguous SSA blocks for f2fs_gc
X-Git-Tag: v3.15-rc1~62^2~38
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=81c1a0f13e6306a76fc3743b8504085d96659a5f;p=pandora-kernel.git

f2fs: readahead contiguous SSA blocks for f2fs_gc

If there are multi segments in one section, we will read those SSA blocks which
have contiguous address one by one in f2fs_gc. It may lost performance, let's
read ahead SSA blocks by merge multi read request.

Signed-off-by: Chao Yu <chao2.yu@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
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