From: Li Zefan <lizf@cn.fujitsu.com>
Date: Thu, 26 May 2011 06:38:30 +0000 (+0000)
Subject: Btrfs: setup free ino caching in a more asynchronous way
X-Git-Tag: v3.0-rc1~38^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a47d6b70e280401d553e7cac6f5750870de1ad21;p=pandora-kernel.git

Btrfs: setup free ino caching in a more asynchronous way

For a filesystem that has lots of files in it, the first time we mount
it with free ino caching support, it can take quite a long time to
setup the caching before we can create new files.

Here we fill the cache with [highest_ino, BTRFS_LAST_FREE_OBJECTID]
before we start the caching thread to search through the extent tree.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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