From: Chao Yu <chao2.yu@samsung.com>
Date: Mon, 28 Apr 2014 09:59:43 +0000 (+0800)
Subject: f2fs: readahead multi pages of directory for performance
X-Git-Tag: omap-for-v3.16/fixes-against-rc1~73^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=817202d937e6cca7e60f42e6495aaa51d70d9d7e;p=pandora-kernel.git

f2fs: readahead multi pages of directory for performance

We have no so such readahead mechanism in ->iterate() path as the one in
->read() path, it cause low performance when we read large directory.
This patch add readahead in f2fs_readdir() for better performance.

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