From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from verein.lst.de (verein.lst.de [213.95.11.211]) by mail19.linbit.com (LINBIT Mail Daemon) with ESMTP id 29D78420216 for ; Wed, 12 Jun 2024 06:50:30 +0200 (CEST) Date: Wed, 12 Jun 2024 06:50:26 +0200 From: Christoph Hellwig To: Damien Le Moal Subject: Re: [PATCH 10/26] xen-blkfront: don't disable cache flushes when they fail Message-ID: <20240612045026.GA26653@lst.de> References: <20240611051929.513387-1-hch@lst.de> <20240611051929.513387-11-hch@lst.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Cc: nvdimm@lists.linux.dev, "Michael S. Tsirkin" , Jason Wang , linux-nvme@lists.infradead.org, Song Liu , linux-mtd@lists.infradead.org, Vineeth Vijayan , linux-bcache@vger.kernel.org, Christoph Hellwig , Alasdair Kergon , drbd-dev@lists.linbit.com, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, Richard Weinberger , Geert Uytterhoeven , Yu Kuai , dm-devel@lists.linux.dev, linux-um@lists.infradead.org, Mike Snitzer , Josef Bacik , Ming Lei , linux-raid@vger.kernel.org, linux-m68k@lists.linux-m68k.org, Mikulas Patocka , xen-devel@lists.xenproject.org, ceph-devel@vger.kernel.org, nbd@other.debian.org, Jens Axboe , linux-block@vger.kernel.org, "Martin K. Petersen" , linux-mmc@vger.kernel.org, Philipp Reisner , virtualization@lists.linux.dev, Lars Ellenberg , linuxppc-dev@lists.ozlabs.org, Roger Pau =?iso-8859-1?Q?Monn=E9?= List-Id: "*Coordination* of development, patches, contributions -- *Questions* \(even to developers\) go to drbd-user, please." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Tue, Jun 11, 2024 at 04:30:39PM +0900, Damien Le Moal wrote: > On 6/11/24 2:19 PM, Christoph Hellwig wrote: > > blkfront always had a robust negotiation protocol for detecting a write > > cache. Stop simply disabling cache flushes when they fail as that is > > a grave error. > > > > Signed-off-by: Christoph Hellwig > > Looks good to me but maybe mention that removal of xlvbd_flush() as well ? > And it feels like the "stop disabling cache flushes when they fail" part should > be a fix patch sent separately... I'll move the patch to the front of the series to get more attention from the maintainers, but otherwise the xlvbd_flush remova lis the really trivial part here.