From: Robin Dong <hao.bigrat@gmail.com>
Subject: [PATCH 0/8 bigalloc] ext4: change unit of extent's ee_len from block to cluster
Date: Tue,  1 Nov 2011 18:53:29 +0800
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Cc: Robin Dong <sanbai@taobao.com>
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From: Robin Dong <sanbai@taobao.com>

Hi,

This patch series change unit of ee_len (of extent) from "block" to "cluster".
Changing the unit of ee_len will reduce the space occupied by meta data.