From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 04C33172BCE; Tue, 11 Jun 2024 08:24:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718094283; cv=none; b=Rpb3goC7k3Pkktpf+4yO9KLWarC6MO4xPrDN6MDslpak0WidC5wbfungW9K7R6wuCviucq76nyFdtzTrZCf/0OfDV+VZYOKn7b9YCwBqbJ2ZHsklxh8PJTSrc8hDoe6M+Sn0hkFk6fFEDAM3J9Rm/XZUnwmtE6u0+JVfOtinc+o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718094283; c=relaxed/simple; bh=aa39oj6grsQuWCvXe8Xg/GJ/V11Jvezu/rMLECj5P4s=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=UOYgOOCcAezUmE+LaD1aLfWYAYAVilhpGNIQjHHghY/RhAkyepSIYAm2wK6MfKKFgx+v5VMGnd1vDk472x65/pgR2cMdQGvvJlQkXea99QLNNdgMrijZ2mgZ+kTQWP5Zyaqbpxx7Apz4e0wN00Z7EgAcD8xXhaQxvTLMZ2FtCdY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=aV9kUDMW; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="aV9kUDMW" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 22FE3C2BD10; Tue, 11 Jun 2024 08:24:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718094282; bh=aa39oj6grsQuWCvXe8Xg/GJ/V11Jvezu/rMLECj5P4s=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=aV9kUDMWPWfXNXmeOO+XWzXEhkoXq7ADFSgqT6UOp6QmIpyBhYF9XRI2luZ1jDGrm fjnG6eWakSd1CNbsGjF5O5LrabvpJGoxEOU9IkGiZiHR46HxhFdMHk0kIvmZI9wx0L JOsygBPd1TdA6IDc/8xDg7nKHyfJ/2D590dnIGGMTWnavCtGtya+9Az2pKzwaIFhFJ j4onYH3Luprc5hdFhkVV5RWd7C4hgmyLZChJZgAFOBU129M9EEZQ0rLACWD8TZ/l9S OXq+G88IRiQo0zQ3DlC2WKDuqnhjQLUQDaVvY8Aat/yU/aTyp6lpmYzMIDEOv1I7i1 CT8Dtiuz6hADg== Message-ID: Date: Tue, 11 Jun 2024 17:24:38 +0900 Precedence: bulk X-Mailing-List: linux-bcache@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 24/26] block: move the pci_p2pdma flag to queue_limits To: Christoph Hellwig , Jens Axboe Cc: Geert Uytterhoeven , Richard Weinberger , Philipp Reisner , Lars Ellenberg , =?UTF-8?Q?Christoph_B=C3=B6hmwalder?= , Josef Bacik , Ming Lei , "Michael S. Tsirkin" , Jason Wang , =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= , Alasdair Kergon , Mike Snitzer , Mikulas Patocka , Song Liu , Yu Kuai , Vineeth Vijayan , "Martin K. Petersen" , linux-m68k@lists.linux-m68k.org, linux-um@lists.infradead.org, drbd-dev@lists.linbit.com, nbd@other.debian.org, linuxppc-dev@lists.ozlabs.org, ceph-devel@vger.kernel.org, virtualization@lists.linux.dev, xen-devel@lists.xenproject.org, linux-bcache@vger.kernel.org, dm-devel@lists.linux.dev, linux-raid@vger.kernel.org, linux-mmc@vger.kernel.org, linux-mtd@lists.infradead.org, nvdimm@lists.linux.dev, linux-nvme@lists.infradead.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, linux-block@vger.kernel.org References: <20240611051929.513387-1-hch@lst.de> <20240611051929.513387-25-hch@lst.de> Content-Language: en-US From: Damien Le Moal Organization: Western Digital Research In-Reply-To: <20240611051929.513387-25-hch@lst.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 6/11/24 2:19 PM, Christoph Hellwig wrote: > Move the pci_p2pdma flag into the queue_limits feature field so that it > can be set atomically and all I/O is frozen when changing the flag. > > Signed-off-by: Christoph Hellwig Reviewed-by: Damien Le Moal -- Damien Le Moal Western Digital Research