From: Stewart, Sean Date: Thu, 4 Apr 2013 14:54:47 +0000 (+0000) Subject: [SCSI] scsi_dh_alua: Add module parameter to allow failover to non preferred path... X-Git-Tag: omap-for-v3.10/dt-fixes-for-merge-window~95^2~8 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7a3ad3920de780e3da1dacabe3c0abcd5b260655;p=pandora-kernel.git [SCSI] scsi_dh_alua: Add module parameter to allow failover to non preferred path without STPG Resending with requested rewording of the parameter description. Currently ALUA device handler sends STPG command during failover and failback. Failover can be optimized by implicit failover (by not to sending STPG command), when 1 is passed as hwhandler parameter in multipath.conf. ex "2 alua 1". We may need to pass the parameter through module param for alua device handler to optimize failover if incase retain_attached_hwhandler set in multipath.conf and hwhandler is set with non-tpgs device handler ex: '1 rdac'. [jejb: fix up whitespace and other issues] Signed-off-by: Vijay Chauhan Signed-off-by: Sean Stewart Acked-by: Hannes Reinecke Signed-off-by: James Bottomley --- Reading git-diff-tree failed