From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 AA2725390; Fri, 22 Dec 2023 05:37:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=bombadil.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="1ioA52TK" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=Ehc4XtP4Bj0BvCjkQ22XyePVUvM6sFI9MypjiGFf6p4=; b=1ioA52TKDFyEux+guT8Y7dRYn9 y3Vag6l50pcyopHv+6YxSnjOWaWSP+HpKqUUX3zxOPtGHAWR9iW7mKrtm87QZiniZzu++ghUe8kt0 pENneWiaWnqT1q2tG8cS8o4qGA6dEw+dZxkUSzshr6eAxw0rdR9DeO2W8RUCpwoTX6nd4XMoSn1Wc s6Jppvp/eADozCa7HzU2v3QnK/yUQkM5wc/MSS6J+kh+9BXLeukFrjQhCpG11iAsfsNzFLedtiWlK tcZONDQYLlCn7iIR2eWSTrGIiKOq7peRJ9Dp7GbQfYTB0sW6j2gfltkyOfLRHXsCmfd3fZbuprVJh uQ2yQ2xQ==; Received: from hch by bombadil.infradead.org with local (Exim 4.96 #2 (Red Hat Linux)) id 1rGYE7-0050F9-2x; Fri, 22 Dec 2023 05:37:39 +0000 Date: Thu, 21 Dec 2023 21:37:39 -0800 From: Christoph Hellwig To: Matthew Wilcox Cc: Bart Van Assche , Hannes Reinecke , lsf-pc@lists.linuxfoundation.org, linux-mm@kvack.org, linux-block@vger.kernel.org, linux-scsi@vger.kernel.org, "linux-nvme@lists.infradead.org" Subject: Re: [LSF/MM/BPF TOPIC] Large block for I/O Message-ID: References: <7970ad75-ca6a-34b9-43ea-c6f67fe6eae6@iogearbox.net> <4343d07b-b1b2-d43b-c201-a48e89145e5c@iogearbox.net> <03ebbc5f-2ff5-4f3c-8c5b-544413c55257@suse.de> <5c356222-fe9e-41b0-b7fe-218fbcde4573@acm.org> Precedence: bulk X-Mailing-List: linux-block@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: X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html On Fri, Dec 22, 2023 at 05:13:43AM +0000, Matthew Wilcox wrote: > It clearly solves a problem (and the one I think it's solving is the > size of the FTL map). But I can't see why we should stop working on it, > just because not all drive manufacturers want to support it. I don't think it is drive vendors. It is is the SSD divisions which all pretty much love it (for certain use cases) vs the UFS/eMMC divisions which tends to often be fearful and less knowledgeable (to say it nicely) no matter what vendor you're talking to.