From: Chao Yu <chao2.yu@samsung.com>
Date: Fri, 7 Feb 2014 08:11:53 +0000 (+0800)
Subject: f2fs: introduce ra_meta_pages to readahead CP/NAT/SIT pages
X-Git-Tag: v3.15-rc1~62^2~50
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=662befda25fb16d7164633c39e9e20aeac5107d9;p=pandora-kernel.git

f2fs: introduce ra_meta_pages to readahead CP/NAT/SIT pages

This patch help us to cleanup the readahead code by merging ra_{sit,nat}_pages
function into ra_meta_pages.
Additionally the new function is used to readahead cp block in
recover_orphan_inodes.

Change log from v1:
 o fix a deadloop bug pointed by Jaegeuk Kim.

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