From: Bart Van Assche <bart.vanassche@sandisk.com>
Date: Mon, 18 May 2015 11:24:38 +0000 (+0200)
Subject: scsi_transport_srp: Reduce failover time
X-Git-Tag: omap-for-v4.2/fixes-rc1^2~152^2~37
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e68ca75200fed4700471fb84ea0d09e25f269654;p=pandora-kernel.git

scsi_transport_srp: Reduce failover time

Unlike FC, there is no risk that SCSI devices will be offlined
by the SCSI error handler if the SCSI error handler is started
while a reconnect attempt is ongoing. Hence report timeout errors
as soon as possible if a higher software layer (e.g. multipathd)
needs to be informed about a timeout. It is assumed that if both
fast_io_fail_tmo < 0 and rport->dev_loss_tmo < 0 that this means
that there is no need to report timeouts quickly.

Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: James Bottomley <JBottomley@Odin.com>
Cc: Sagi Grimberg <sagig@mellanox.com>
Cc: Sebastian Parschauer <sebastian.riemer@profitbricks.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
---

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