From: Changman Lee <cm224.lee@samsung.com>
Date: Fri, 28 Nov 2014 15:49:40 +0000 (+0000)
Subject: f2fs: more fast lookup for gc_inode list
X-Git-Tag: omap-for-v3.19/fixes-rc1~146^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7dda2af83b2b7593458828d4f15443167b3da8c4;p=pandora-kernel.git

f2fs: more fast lookup for gc_inode list

If there are many inodes that have data blocks in victim segment,
it takes long time to find a inode in gc_inode list.
Let's use radix_tree to reduce lookup time.

Signed-off-by: Changman Lee <cm224.lee@samsung.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
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