From a57e564d14d9d123b2dd4ff1c933da0d900e0b1d Mon Sep 17 00:00:00 2001
From: Jin Xu <jinuxstyle@gmail.com>
Date: Fri, 13 Sep 2013 08:38:54 +0800
Subject: [PATCH] f2fs: optimize the victim searching loop slightly

Since the MAX_VICTIM_SEARCH has been enlarged from 20 to 4096,
the victim searching overhead will be increased much than before,
especially for SSR that searches victim for use quiet often.
This patch intends to reduce the overhead a little bit by:
- make the get_gc_cost a inline routine to reduce function call
  overhead
- reduce multiplication and division operations
- reduce unnecessary comparison operation

Signed-off-by: Jin Xu <jinuxstyle@gmail.com>
Signed-off-by: Jaegeuk Kim <jaegeuk.kim@samsung.com>
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