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 59B601822F3; Mon, 17 Jun 2024 06:25:22 +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=1718605522; cv=none; b=W3z+mRuc71iV96Oe1+cU5Uns+uzMJy9NRVgx28sEsTxva5vYP2a4B9Ig22v9RvHC7t+RsUxUJh5C+pq37IcGNr8YAVbjLNxCGhzSkT9xhiVDJSHoJuFhWDfKM/DFUTWfnYQWxwUKPmsdCwR/UPr1yx1cPHynzLhyzxvPh+lsazs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718605522; c=relaxed/simple; bh=b4C7oWXm6AiByOywGcEEC3GnqcHjFi/qcKpmuC4GSl4=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=BC4xgqCBhLqu/SA5czubCk6BpS8H67C2CDyi0I57cUp8whHYm/vpOt+qcBP9hEx137xP+aYVo1qlXgpUULEC5RCiqI+x01zjqFLOwYWPMryO9y/lJ9Rwy8eqIfhmxlknUPTMJcfSgk298kqnRaBdFnpedAnNPrwcrIteP9GaEoM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=LEnK17zF; 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="LEnK17zF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 64B3DC2BD10; Mon, 17 Jun 2024 06:25:17 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1718605521; bh=b4C7oWXm6AiByOywGcEEC3GnqcHjFi/qcKpmuC4GSl4=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=LEnK17zFqe+hZOSDUj/tOYJPTbrEr/iyN4UNL0SmIILaSKuqTSJ4sjLsh83tbNp98 xMaGs3z4bHthSiIVUGgn6p6k1Hp4OFwjqTvBViQ5r26ZmMaTUT3kdJYmUDeoTb8K+4 jT0vLs8Spfa7yPWU+yf5YKwUzdEIRo48lJNdqGhIlmZTb6k7761bMjs2rcyd0Hfqhj Vpk+ileeXJ565Q23YPjftwlXpdj9Xgx1bQhDcK36W/6YmID+8NvWJsHJ8cIkaSJCt0 a65W2bmG0g0iV3m+rrO4imip0sJi5o8S5QSdLa4VJ1pKGoVgY8bkQ22MoITZxj7f6K IsTYJ2fK4dlcQ== Message-ID: Date: Mon, 17 Jun 2024 15:25:16 +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 16/26] block: move the io_stat flag setting 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: <20240617060532.127975-1-hch@lst.de> <20240617060532.127975-17-hch@lst.de> From: Damien Le Moal Content-Language: en-US Organization: Western Digital Research In-Reply-To: <20240617060532.127975-17-hch@lst.de> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 6/17/24 15:04, Christoph Hellwig wrote: > Move the io_stat flag into the queue_limits feature field so that it can > be set atomically with the queue frozen. > > Simplify md and dm to set the flag unconditionally instead of avoiding > setting a simple flag for cases where it already is set by other means, > which is a bit pointless. > > Signed-off-by: Christoph Hellwig Reviewed-by: Damien Le Moal -- Damien Le Moal Western Digital Research