From: Ilya Dryomov <idryomov@gmail.com>
Date: Mon, 16 Jan 2012 20:04:47 +0000 (+0200)
Subject: Btrfs: add basic infrastructure for selective balancing
X-Git-Tag: v3.3-rc1~26^2~12^2~15
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f43ffb60fd94e98be02780944e182ade6653b916;p=pandora-kernel.git

Btrfs: add basic infrastructure for selective balancing

This allows to have a separate set of filters for each chunk type
(data,meta,sys).  The code however is generic and switch on chunk type
is only done once.

This commit also adds a type filter: it allows to balance for example
meta and system chunks w/o touching data ones.

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