From: Chao Yu <chao2.yu@samsung.com>
Date: Tue, 9 Dec 2014 06:21:46 +0000 (+0800)
Subject: f2fs: readahead contiguous current summary blocks in checkpoint
X-Git-Tag: fixes-v4.0-rc1~114^2~56
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3fa06d7bc9f579bd180e879fd1c9bdb6b1b0d9b7;p=pandora-kernel.git

f2fs: readahead contiguous current summary blocks in checkpoint

Let's add readahead code for reading contiguous compact/normal summary blocks
in checkpoint, then we will gain better performance in mount procedure.

Changes from v1
  o remove inappropriate 'unlikely' in npages_for_summary_flush.

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