From mboxrd@z Thu Jan 1 00:00:00 1970 From: Hannes Reinecke Subject: Re: [PATCHv2 0/2] dm-multipath: push back requests instead of queueing Date: Thu, 30 Jan 2014 07:53:04 +0100 Message-ID: <52E9F6D0.9050703@suse.de> References: <1389955328-107148-1-git-send-email-hare@suse.de> <20140118154154.GA18825@redhat.com> <20140130013858.GA22108@redhat.com> Reply-To: device-mapper development Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20140130013858.GA22108@redhat.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dm-devel-bounces@redhat.com Errors-To: dm-devel-bounces@redhat.com To: Mike Snitzer Cc: Junichi Nomura , dm-devel@redhat.com, Alasdair Kergon List-Id: dm-devel.ids On 01/30/2014 02:38 AM, Mike Snitzer wrote: > On Sat, Jan 18 2014 at 10:41am -0500, > Mike Snitzer wrote: > = >> On Fri, Jan 17 2014 at 5:42am -0500, >> Hannes Reinecke wrote: >> >>> Hi all, >>> >>> dm-multipath still carries around it's own queueing framework for >>> implementing 'queue_if_no_path'. >>> However, there is no real reason for this; we could as well >>> push back the requests onto the request_queue. >>> In doing so we can also reduce the memory pressure during >>> fail_if_no_path scenarios, as we don't have to allocate a >>> context for each request when it need to be requeued. >>> >>> This patchset is the reworked version from the original, including >>> the review by Jun'ichi. >> >> Much appreciated. But unfortunately it is too late for 3.14. >> >> These will be my immediate priority once I transition to 3.15 >> development (likely by end of next week). > = > Hi Hannes, > = > Do you have a new patchset for this work based on the review Junichi > provided? I'd like to review/stage your latest once you have it. > = Hmm, the patchset should include the review. But I'll check. Cheers, Hannes -- = Dr. Hannes Reinecke zSeries & Storage hare@suse.de +49 911 74053 688 SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 N=FCrnberg GF: J. Hawn, J. Guild, F. Imend=F6rffer, HRB 16746 (AG N=FCrnberg)