From: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Date: Mon, 22 Jun 2009 09:12:27 +0000 (+0100)
Subject: dm mpath: add queue length load balancer
X-Git-Tag: v2.6.31-rc1~8^2~17
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fd5e033908b7b743b5650790f196761dd930f988;p=pandora-kernel.git

dm mpath: add queue length load balancer

This patch adds a dynamic load balancer, dm-queue-length, which
balances the number of in-flight I/Os across the paths.

The code is based on the patch posted by Stefan Bader:
https://www.redhat.com/archives/dm-devel/2005-October/msg00050.html

Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>
---

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