tree cd264d11371b9410e98388e00f4d87459a5e6325
parent 02ab823fd1a27d193bda06b74fdad685a20a3e5e
author Kiyoshi Ueda <k-ueda@ct.jp.nec.com> 1245661947 +0100
committer Alasdair G Kergon <agk@redhat.com> 1245661947 +0100

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>