From: Qu Wenruo <quwenruo@cn.fujitsu.com>
Date: Mon, 22 Sep 2014 01:13:03 +0000 (+0800)
Subject: btrfs: Fix the wrong condition judgment about subset extent map
X-Git-Tag: fixes-against-v3.18-rc2~120^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=32be3a1ac6d09576c57063c6c350ca36eaebdbd3;p=pandora-kernel.git

btrfs: Fix the wrong condition judgment about subset extent map

Previous commit: btrfs: Fix and enhance merge_extent_mapping() to insert
best fitted extent map
is using wrong condition to judgement whether the range is a subset of a
existing extent map.

This may cause bug in btrfs no-holes mode.

This patch will correct the judgment and fix the bug.

Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com>
Signed-off-by: Chris Mason <clm@fb.com>
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