From: Yongqiang Yang <xiaoqiangnk@gmail.com>
Date: Wed, 5 Sep 2012 05:33:50 +0000 (-0400)
Subject: ext4: add online resizing support for meta_bg and 64-bit file systems
X-Git-Tag: v3.7-rc1~91^2~45
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=01f795f9e0d67adeccc61a8b20c28acb45fa5fd8;p=pandora-kernel.git

ext4: add online resizing support for meta_bg and 64-bit file systems

This patch adds support for resizing file systems with the meta_bg and
64bit features.

[ Added a fix by tytso to fix a divide by zero when resizing a
  filesystem from 14 TB to 18TB.  Also fixed overhead accounting for
  meta_bg file systems.]

Signed-off-by: Yongqiang Yang <xiaoqiangnk@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
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