From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bill Davidsen Subject: Re: [md-accel PATCH 00/19] md raid acceleration and the async_tx api Date: Wed, 27 Jun 2007 12:45:38 -0400 Message-ID: <46829432.4050302@tmr.com> References: <20070627014823.18962.96398.stgit@dwillia2-linux.ch.intel.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20070627014823.18962.96398.stgit@dwillia2-linux.ch.intel.com> Sender: linux-raid-owner@vger.kernel.org To: Dan Williams Cc: linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org, neilb@suse.de, akpm@linux-foundation.org, davem@davemloft.net, christopher.leech@intel.com, shannon.nelson@intel.com, herbert@gondor.apana.org.au, jeff@garzik.org List-Id: linux-raid.ids Dan Williams wrote: > Greetings, > > Per Andrew's suggestion this is the md raid5 acceleration patch set > updated with more thorough changelogs to lower the barrier to entry for > reviewers. To get started with the code I would suggest the following > order: > [md-accel PATCH 01/19] dmaengine: refactor dmaengine around dma_async_tx_descriptor > [md-accel PATCH 04/19] async_tx: add the async_tx api > [md-accel PATCH 07/19] md: raid5_run_ops - run stripe operations outside sh->lock > [md-accel PATCH 16/19] dmaengine: driver for the iop32x, iop33x, and iop13xx raid engines > > The patch set can be broken down into three main categories: > 1/ API (async_tx: patches 1 - 4) > 2/ implementation (md changes: patches 5 - 15) > 3/ driver (iop-adma: patches 16 - 19) > > I have worked with Neil to get approval of the category 2 changes. > However for the category 1 and 3 changes there was no obvious > merge-path/maintainer to work through. I have thus far extrapolated > Neil's comments about 2 out to 1 and 3, Jeff gave some direction on a > early revision about the scalability of the API, and the patch set has > picked up various fixes and suggestions from being in -mm for a few > releases. Please help me ensure that this code is ready for Linus to > pull for 2.6.23. > > git://lost.foo-projects.org/~dwillia2/git/iop md-accel-linus > Dan, I hope you will release these as a patchset against 2.6.22 when it's out or 2.6.21. I find I have a lot more confidence in results, good or bad, when comparing something I have run in production with just one patchset added. There are enough other changes in an -rc to confuse the issue, and I don't run them in production (at least not usually). -- bill davidsen CTO TMR Associates, Inc Doing interesting things with small computers since 1979