From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Snitzer Subject: Re: dm mpath: delay retry activate_path on SCSI_DH_RETRY Date: Tue, 2 Nov 2010 15:32:17 -0400 Message-ID: <20101102193217.GA23680@redhat.com> References: <1241493497.8721.60.camel@chandra-ubuntu> <1242357018.15931.14.camel@chandra-ubuntu> <1244580864.11385.4.camel@chandra-ubuntu> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Content-Disposition: inline In-Reply-To: <1244580864.11385.4.camel@chandra-ubuntu> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: sekharan@linux.vnet.ibm.com, device-mapper development Cc: Nikanth Karthikesan , Mike Christie List-Id: dm-devel.ids On Tue, Jun 09 2009 at 4:54pm -0400, Chandra Seetharaman wrote: > No functional change. > > Repost with changes made to apply cleanly on top of the patch > (http://marc.info/?l=dm-devel&m=124424663327710&w=2) that changed > dm-mpath.c > > ----------------- > From: Chandra Seetharaman > > SCSI Device Handlers return SCSI_DH_IMM_RETRY if we could retry > immediately and SCSI_DH_RETRY in cases where it is better to retry > after some delay. > > Currently we retry immediately irrespective of SCSI_DH_IMM_RETRY and > SCSI_DH_RETRY. This patch adds a user configurable attribute > pg_init_delay_secs which specifies the number of seconds to delay > before retrying scsi_dh_activate, when it returned SCSI_DH_RETRY. > > Default for this attribute is set to 2 seconds. > > Signed-off-by: Nikanth Karthikesan > Signed-off-by: Chandra Seetharaman I'm auditing dm-devel's patchwork and would just like to confirm that others would still like to see this go in? Patch in question is captured here: https://patchwork.kernel.org/patch/29088/ Mike C., An earlier version of this patch got your "Looks ok.": https://patchwork.kernel.org/patch/23946/ Can I translate that to your "Acked-by:" if/when I rebase and repost? Please advise, Mike