From ee16cc037e255801892481a2d0b7c1fff2adf1aa Mon Sep 17 00:00:00 2001
From: Tristan Ye <tristan.ye@oracle.com>
Date: Fri, 18 Mar 2011 14:35:40 +0800
Subject: [PATCH] Ocfs2/move_extents: helper to calculate the defraging length
 in one run.

The helper is to calculate the defrag length in one run according to a threshold,
it will proceed doing defragmentation until the threshold was meet, and skip a
LARGE extent if any.

Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
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