btrfs: Fix the wrong condition judgment about subset extent map
authorQu Wenruo <quwenruo@cn.fujitsu.com>
Mon, 22 Sep 2014 01:13:03 +0000 (09:13 +0800)
committerChris Mason <clm@fb.com>
Fri, 3 Oct 2014 23:14:58 +0000 (16:14 -0700)
commit32be3a1ac6d09576c57063c6c350ca36eaebdbd3
treef0b6892b848e7299ac2b26b47e786335aac13854
parentbbe9051441effce51c9a533d2c56440df64db2d7
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>
fs/btrfs/inode.c