From: Liu Bo <bo.li.liu@oracle.com>
Date: Sun, 29 Dec 2013 13:44:50 +0000 (+0800)
Subject: Btrfs: return free space to global_rsv as much as possible
X-Git-Tag: v3.14-rc1~29^2~62
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=17504584f52af944960f1ad16752aa10a0755b3b;p=pandora-kernel.git

Btrfs: return free space to global_rsv as much as possible

@full is not protected within global_rsv.lock, so we may think global_rsv
is already full but in fact it's not, so we miss the opportunity to return
free space to global_rsv directly when we release other block_rsvs.

Signed-off-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

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