From: Miao Xie <miaox@cn.fujitsu.com>
Date: Thu, 18 Oct 2012 08:18:01 +0000 (+0000)
Subject: Btrfs: fix unnecessary while loop when search the free space, cache
X-Git-Tag: v3.8-rc1~71^2~110
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=de6c4115a297d4bbf178aca9948c3539f89c9caa;p=pandora-kernel.git

Btrfs: fix unnecessary while loop when search the free space, cache

When we find a bitmap free space entry, we may check the previous extent
entry covers the offset or not. But if we find this entry is also a bitmap
entry, we will continue to check the previous entry of the current one by
a while loop. It is unnecessary because it is impossible that the extent
entry which is in front of a bitmap entry can cover the offset of the entry
after that bitmap entry.

Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Reviewed-by: Liu Bo <bo.li.liu@oracle.com>
Signed-off-by: Chris Mason <chris.mason@fusionio.com>
---

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