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 1B74B13B797; Thu, 17 Oct 2024 16:06:44 +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=1729181205; cv=none; b=q7h8xoo+8+7f/aBEoXEJvQCkC2pV287ZrvcK54AXKXqbUhSIYls5Q2XSY7BQZRHGXjs99EjVIMm+PlgnSnKHchnD9Z0C9b3pKfThvtSfXILgjXGTGkkEqpDPiZLeV25Rgi52Q58UG4r9Wz+SnO5jFvWjp/ychwc/vEn5Ppu0ZFA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1729181205; c=relaxed/simple; bh=sxLBVfVgG6T70/qpBvtsFGUgrJ9BQHiMs+QBb2kssdg=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=A4sUtipHXXdmePTX/6VRwrHhU9L4k4UTrQhu6YoZBvZ2Rnq9vJfF02OEr4vsB0DcnUffylkctZq8BSQTAiGGM8tV5eqjUvcda/8XH8WLFKN5lV16YqSyok2ZIUeKK/50Y4vP2FRbzA1B1hz2VOJYQPP66bGujbirdsbonAiffeQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gffDCd6j; 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="gffDCd6j" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 481DCC4CEC3; Thu, 17 Oct 2024 16:06:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1729181204; bh=sxLBVfVgG6T70/qpBvtsFGUgrJ9BQHiMs+QBb2kssdg=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=gffDCd6jUTW1l1kOMeBrkIvTn0E+ToGcq/Xm+HdcLQ1Oza1utr/Oy1QbQxYgsjrWW Z7r4Uc3GEa75Q+ZWX5YvKzBQcAunJCXuuNFfw8pZYvYStMxzWjb0pen98HU1Qt8/xk kuhJg8Jf1aMhbmD1z03D7B2TVVa+YT5eNXGQMuPQXG6nuwimwzsPQuRa88P38+N5Ow odQsIJrRlEiimxp1+3f3+nYrosWSNuWt0bvGwiyJ+bdSWrYKrqSfK73R+7UmJXGdu8 BXoN2+6XEeSWIUUo+d7LAiROz/12437PYHGbxV0iDZ4EliKp+XqaM/B2+R/nPJv9TO H1z6YF5t/E7Xw== Date: Thu, 17 Oct 2024 10:06:41 -0600 From: Keith Busch To: Christoph Hellwig Cc: Kanchan Joshi , axboe@kernel.dk, hare@suse.de, sagi@grimberg.me, martin.petersen@oracle.com, brauner@kernel.org, viro@zeniv.linux.org.uk, jack@suse.cz, jaegeuk@kernel.org, bcrl@kvack.org, dhowells@redhat.com, bvanassche@acm.org, asml.silence@gmail.com, linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, io-uring@vger.kernel.org, linux-block@vger.kernel.org, linux-aio@kvack.org, gost.dev@samsung.com, vishak.g@samsung.com, javier.gonz@samsung.com Subject: Re: [PATCH v7 0/3] FDP and per-io hints Message-ID: References: <20240930181305.17286-1-joshi.k@samsung.com> <20241015055006.GA18759@lst.de> <8be869a7-c858-459a-a34b-063bc81ce358@samsung.com> <20241017152336.GA25327@lst.de> <20241017154649.GA27203@lst.de> Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241017154649.GA27203@lst.de> On Thu, Oct 17, 2024 at 05:46:49PM +0200, Christoph Hellwig wrote: > On Thu, Oct 17, 2024 at 09:44:39AM -0600, Keith Busch wrote: > > > We can add a fop_flags and block/fops.c can be the first one to turn it > > on since that LBA access is entirely user driven. > > Yes, that's my main request on the per-I/O hint interface. > > Now we just need to not dumb down the bio level interface to five > temeperature level and just expose the different write streams and we > can all have a happy Kumbaya. I'm sending a revised version of this patch set that attempts to address these issues. The io_uring hint is weird to me, so that part is simplified just to get the point across.