From owner-svn-src-all@FreeBSD.ORG Tue Jan 27 05:51:30 2015 Return-Path: Delivered-To: svn-src-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id ECA95BF7; Tue, 27 Jan 2015 05:51:30 +0000 (UTC) Received: from mail-pd0-x22a.google.com (mail-pd0-x22a.google.com [IPv6:2607:f8b0:400e:c02::22a]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id B9C9FFF9; Tue, 27 Jan 2015 05:51:30 +0000 (UTC) Received: by mail-pd0-f170.google.com with SMTP id p10so16809075pdj.1; Mon, 26 Jan 2015 21:51:30 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:in-reply-to:user-agent; bh=r5OEYKmZdzDf5Z/4+ECvj1J1m9E4d3+JV4kKocEqfNI=; b=QMM6QCA1qTaveg1N0PC6KPcIe9gQakjS+ZbxCA/ut6YxKfw8lfDcOiivmHa2YsQ/Sp T5wKf9jz/7zSoXaecm8oSHcvHXODwrkh9pfcuYf1W4pBcbJSTf6Lvmcc3cs7cZjujy9J GQzuOqZLQidL+tPMAKYRXXns4v5YIdoAFuoiGK1LFs9P1GU41ZRt3h/5xynQNg/b7f2Z 8wyyEj5ijnIJl5VU5ev/FhI/ns7+Qx7aBH/zBpO0yekZaO3tkAwBstFVp6PQQeM487Gm MMQvqh1WG1kEh07z3upQy5xbzUM4HjoFoVJc5OOH4jgam8X2bwCVr55MOB4sOSOK+1R6 UizA== X-Received: by 10.68.234.200 with SMTP id ug8mr40227110pbc.133.1422337890316; Mon, 26 Jan 2015 21:51:30 -0800 (PST) Received: from charmander.wp.comcast.net (75-149-173-2-Washington.hfc.comcastbusiness.net. [75.149.173.2]) by mx.google.com with ESMTPSA id am14sm310522pac.35.2015.01.26.21.51.28 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 26 Jan 2015 21:51:29 -0800 (PST) Sender: Mark Johnston Date: Mon, 26 Jan 2015 21:51:24 -0800 From: Mark Johnston To: Bryan Venteicher Subject: Re: svn commit: r277788 - head/sys/dev/virtio/block Message-ID: <20150127055124.GA3042@charmander.wp.comcast.net> References: <201501270534.t0R5YlkQ019396@svn.freebsd.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <201501270534.t0R5YlkQ019396@svn.freebsd.org> User-Agent: Mutt/1.5.23 (2014-03-12) Cc: svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 27 Jan 2015 05:51:31 -0000 On Tue, Jan 27, 2015 at 05:34:47AM +0000, Bryan Venteicher wrote: > Author: bryanv > Date: Tue Jan 27 05:34:46 2015 > New Revision: 277788 > URL: https://svnweb.freebsd.org/changeset/base/277788 > > Log: > Rework vtblk dump handling of in flight requests > > Previously, the driver resets the device and abandon the requests that > are caught in flight when the dump was initiated. This was problematic > if the system is resumed after the dump is completed. > > While that is probably not the typical action, it is simple to rework > the driver to very likely have the device usable after the dump without > making it more likely for the dump to fail. The in flight requests are > simply queued for completion once the dump is finished. > > Requested by: markj > MFC after: 1 month Thank you!