From 400db9d30146dc062aaba97a6301b425eb6015bc Mon Sep 17 00:00:00 2001
From: Zheng Liu <gnehzuil.liu@gmail.com>
Date: Mon, 28 May 2012 17:53:53 -0400
Subject: [PATCH] ext4: cleanup in ext4_discard_allocated_blocks()

remove 'len' variable in ext4_discard_allocated_blocks() because it is
useless.

Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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Reading git-format-patch failed