From: Moger, Babu <Babu.Moger@netapp.com>
Date: Tue, 27 Mar 2012 20:55:49 +0000 (+0000)
Subject: [SCSI] scsi_dh_alua: Inroduce the set_params interface scsi_dh_alua handler
X-Git-Tag: v3.5-rc1~172^2~90
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4335d092a1f28e17c5bafa6170bbf9599ca29c6a;p=pandora-kernel.git

[SCSI] scsi_dh_alua: Inroduce the set_params interface scsi_dh_alua handler

Handler expects only one parameter to set the flag ALUA_OPTIMIZE_STPG.
This flag is used to optimize the STPG behaviour. There is no change in
behaviour by default.

For example, to set the flag pass the following parameters from multipath.conf
hardware_handler        "2 alua 1"

Signed-off-by: Babu Moger <babu.moger@netapp.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---

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