From 4740b830ed5720ade6c780dbf3fdfe9089b3552d Mon Sep 17 00:00:00 2001
From: Yongqiang Yang <xiaoqiangnk@gmail.com>
Date: Tue, 26 Jul 2011 21:51:08 -0400
Subject: [PATCH] ext4: let ext4_group_add_blocks() handle 0 blocks quickly

If ext4_group_add_blocks() is called with 0 block, make it return 0
without doing any extra work.

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