Btrfs: check if there is enough space for balancing smarter
authorliubo <liubo2009@cn.fujitsu.com>
Wed, 3 Aug 2011 10:15:25 +0000 (10:15 +0000)
committerChris Mason <chris.mason@oracle.com>
Wed, 17 Aug 2011 01:09:15 +0000 (21:09 -0400)
commitcdcb725c05fe0cb71777c66ddc2445fedbbb3c59
treea2128e008636ad4dd4d6db2131363cc71d45ad73
parent38c01b9605923cfdff5413e0a12e58ee8d962257
Btrfs: check if there is enough space for balancing smarter

When checking if there is enough space for balancing a block group,
since we do not take raid types into consideration, we do not account
corrent amounts of space that we needed.  This makes us do some extra
work before we get ENOSPC.

Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
fs/btrfs/extent-tree.c