Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752399Ab0F1OFW (ORCPT ); Mon, 28 Jun 2010 10:05:22 -0400 Received: from sprinkles.athenacr.com ([64.95.46.210]:24887 "EHLO sprinkles.inp.in.athenacr.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751378Ab0F1OFV (ORCPT ); Mon, 28 Jun 2010 10:05:21 -0400 Message-ID: <4C28AC1E.8070409@athenacr.com> Date: Mon, 28 Jun 2010 10:05:18 -0400 From: Brian Bloniarz User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9) Gecko/20100423 Thunderbird/3.0.4 MIME-Version: 1.0 To: Mark Lord CC: Jens Axboe , Linus Torvalds , "linux-kernel@vger.kernel.org" , Christoph Hellwig Subject: Re: [GIT PULL] block/io bits for 2.6.35-rc References: <4C10EC2A.8060002@fusionio.com> <4C1111ED.6020008@fusionio.com> <4C111685.8010400@athenacr.com> <4C27DA4A.3040708@teksavvy.com> <4C284931.2000908@fusionio.com> <4C28A8FC.6040605@teksavvy.com> In-Reply-To: <4C28A8FC.6040605@teksavvy.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3121 Lines: 64 On 06/28/2010 09:51 AM, Mark Lord wrote: > On 28/06/10 03:03 AM, Jens Axboe wrote: >> On 2010-06-28 01:10, Mark Lord wrote: >>> On 10/06/10 12:44 PM, Brian Bloniarz wrote: > .. >>>> https://bugzilla.kernel.org/show_bug.cgi?id=15906 has links to the >>>> downstream bugs. >>> .. >>> >>> Jens, this bug has been biting my servers badly here for the past >>> few months -- umount after a backup (from ext4 to ext4) takes 3-4 >>> minutes >>> instead of the expected 3-4 seconds. >>> >>> Is there a patch file for this against 2.6.34 that I (and others) >>> could use? >> >> It's the patch series from Christoph in my for-linus branch, I intend >> to push it upstream when Linus is back and taking patches. > .. > > Still looking for a *patch* to fix this here. > > I found these two: > > http://git.kernel.org/?p=linux/kernel/git/axboe/linux-2.6-block.git;a=commitdiff;h=e913fc825dc685a444cb4c1d0f9d32f372f5986 > > http://git.kernel.org/?p=linux/kernel/git/axboe/linux-2.6-block.git;a=commitdiff;h=30fd1e551a730d942e91109762c942786be0ef7c > > > But they don't apply cleanly to 2.6.34. > > Anyone? Don't use those, they have bugs and have since been reverted. Links to the patch series that Jens mentions are below. I doubt they apply cleanly to older kernels. Somebody's probably going to need to take a crack at backporting them eventually (I could try, even), but I don't know anybody has yet. Christoph Hellwig (8): writeback: fix writeback completion notifications writeback: queue work on stack in writeback_inodes_sb writeback: enforce s_umount locking in writeback_inodes_sb writeback: fix writeback_inodes_wb from writeback_inodes_sb writeback: simplify wakeup_flusher_threads writeback: simplify and split bdi_start_writeback writeback: add missing requeue_io in writeback_inodes_wb writeback: fix pin_sb_for_writeback http://git.kernel.org/?p=linux/kernel/git/axboe/linux-2.6-block.git;a=commitdiff;h=2c99721ec6a55b2c1e7ba94945bbdae454e11308 http://git.kernel.org/?p=linux/kernel/git/axboe/linux-2.6-block.git;a=commitdiff;h=ebf51611db2cfa33d056b4428f13275f81732fd5 http://git.kernel.org/?p=linux/kernel/git/axboe/linux-2.6-block.git;a=commitdiff;h=de3f848fbc24f71174f3bcc7513b5a3fafb37bac http://git.kernel.org/?p=linux/kernel/git/axboe/linux-2.6-block.git;a=commitdiff;h=e15e123275b3ca3eeb378136046ab78eab214169 http://git.kernel.org/?p=linux/kernel/git/axboe/linux-2.6-block.git;a=commitdiff;h=dcac2e708d8f8af1a220dd238027af5b4aedfc12 http://git.kernel.org/?p=linux/kernel/git/axboe/linux-2.6-block.git;a=commitdiff;h=8163b53a6bfbfa14ae83f8cdbf536f9c191d3279 http://git.kernel.org/?p=linux/kernel/git/axboe/linux-2.6-block.git;a=commitdiff;h=22e53a2ca88690c711a954d3c652b468a5e94272 http://git.kernel.org/?p=linux/kernel/git/axboe/linux-2.6-block.git;a=commitdiff;h=7eed7cc254e71352e5e2e642c70a9b04cd28cc76 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/