From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jens Axboe Subject: Re: [PATCH 0/4] Plugging changes for blk/md/umem Date: Tue, 31 Jul 2012 10:54:17 +0200 Message-ID: <50179D39.6080608@kernel.dk> References: <20120726025650.32180.65163.stgit@notabene.brown> <50178487.4090302@kernel.dk> <20120731172539.4feea95e@notabene.brown> <50178A4F.8010806@kernel.dk> <20120731184425.389515ed@notabene.brown> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20120731184425.389515ed@notabene.brown> Sender: linux-raid-owner@vger.kernel.org To: NeilBrown Cc: linux-raid@vger.kernel.org, Shaohua Li List-Id: linux-raid.ids On 07/31/2012 10:44 AM, NeilBrown wrote: > On Tue, 31 Jul 2012 09:33:35 +0200 Jens Axboe wrote: > >> On 07/31/2012 09:25 AM, NeilBrown wrote: >>> On Tue, 31 Jul 2012 09:08:55 +0200 Jens Axboe wrote: >>> >>>> On 07/26/2012 04:58 AM, NeilBrown wrote: >>>>> Hi Jens, >>>>> the following series makes a number of changes to plugging, moving >>>>> common code from md and umem into block, and modifying it to allow >>>>> md to get more value out of it. >>>>> They've been sitting in -next for a while. >>>>> Are you OK with me forwarding them to Linus, or would you rather they >>>>> went though your tree? >>>> >>>> Thanks Neil, looks good. I will apply them to my tree and do some basic >>>> testing, too, then push it off for this round (where I haven't pushed >>>> out yet). >>>> >>> >>> Thanks Jens, >>> However I've just today discovered that the very first patch causes a real >>> regression in throughput for RAID5 and while I'm sure I can fix it with a >>> subsequent patch (once I figure out exactly what it happening) it might make >>> sense to hold them all back for 3.7. >>> >>> However if you would like to take them now and fix up later (it is only a >>> performance regression so it won't really affect bisection) I can work with >>> that. >> >> If you're confident we can fix it in this cycle (sounds like it, if you >> have a grasp on the situation), then I don't think that should stop us. >> > > Sounds like a plan. > I have a few md patches queue which depend on those plugging patches, so if > you could cc me when you send you pull request (which Linus is keen for "by > Wedneday at the latest" I gather), I'll sort my tree out and send my pull > request. They'll go out today, or tomorrow at the latest. I'll CC you. This merge window has been unfortunately timed with my vacation (Linus, how dare you!), so I have a bit of a time crunch. On the plus side, it's smaller than last round. -- Jens Axboe