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 D80DC1CB513; Tue, 1 Oct 2024 16:23:46 +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=1727799827; cv=none; b=gXorZmRAX8V7DKRWkARnpD3AVVS4in2atOjhm6TQO2WgPsd7H/BSvSqNBSBV+pelnk8P0iAUu5JSz1ufptU7dEMZVjLPAE+hCCoFo1tGIQUxJ+MoIjpgjp67duWfFUwg+m+Toy5rKXuZX+uD2cDoC6STTU/vM4+I3Y84CCziU+o= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727799827; c=relaxed/simple; bh=w1g+MZ8OSr/yI8Fxcdx00lY1A/TRv9HBlLNAipFFr4k=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=E8gCg8VxswC6m8scLTsmQbqI9FB4MsfgtGSbQ4EL/ruiKDrlFFex5WvAk7HMvu3kWXxAzppxFquppi40PIqFIn3iNR/hLaezpxMObcSIPzI0s68aAgRNCNANVe/CovO/1slieSgrIcRcwjK37uhR/MTuSTSSdzs3NpAOyKJu8jc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=kt3ZiVnQ; 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="kt3ZiVnQ" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 70583C4CEC6; Tue, 1 Oct 2024 16:23:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1727799826; bh=w1g+MZ8OSr/yI8Fxcdx00lY1A/TRv9HBlLNAipFFr4k=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=kt3ZiVnQmIb8+1XZ90iic2VM1jfsyrND5B4ffPweDTWhMOiqLSg8NggcpsKJQQzAT fYshWYHV3OCZHoBd3QpRA5vaJ3H0uTIhvQyFK+mkjycQJSz9PyeA/VFKMUVw2wcjTW nww5w4oxIPPZj4JftoHAFJhDqITWfTH0S69I4fi7pUPsUBM1rDw3xUqdCUu/hFpelN w+8rsT0uQYEfA+rU72UpXCZYEttyUltTImUSsrEM+6i8dljg1UQMSXBEzZOPkUSBQx gwYl6aUzfgi/lBIwG07o3VQYJkRInrnFRxFre40mKG4OHMTIeYTcIZtbSOFW6Odseq KeNx+LcN5mT+w== Date: Tue, 1 Oct 2024 10:23:43 -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> <20241001092047.GA23730@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: <20241001092047.GA23730@lst.de> On Tue, Oct 01, 2024 at 11:20:48AM +0200, Christoph Hellwig wrote: > Any reason you completely ignored my feedback on the last version > and did not even answer? > > That's not a very productive way to work. I think because he's getting conflicting feedback. The arguments against it being that it's not a good match, however it's the same match created for streams, and no one complained then, and it's an existing user ABI. FDP is a the new "streams", so I really don't see a big deal here. I understand you have use cases that have filesystems intercept the hints for different types of devices, but I don't see these use cases as mutally exclusive. Supporting this one doesn't prevent other uses.