From: Ilya Dryomov <idryomov@gmail.com>
Date: Tue, 27 Mar 2012 14:09:17 +0000 (+0300)
Subject: Btrfs: add __get_block_group_index() helper
X-Git-Tag: v3.4-rc1~22^2~12^2~5
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7738a53a3a3aa8d82350280ff4bc7df9c3094123;p=pandora-kernel.git

Btrfs: add __get_block_group_index() helper

Add __get_block_group_index() helper to be able to derive block group
index from an arbitary set of flags.  Implement get_block_group_index()
in terms of it.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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