From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-oa1-f41.google.com (mail-oa1-f41.google.com [209.85.160.41]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DBD303C3C08 for ; Thu, 10 Sep 2026 20:58:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.41 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789073925; cv=none; b=oOvqHk2xYpWGU8gD8L1lQvAJcz27UqIpnbQawylqgFuAXAoFIjzonhRXn1xbGmZSZjrsIOcbeTEBLRIT9+1Rb/oYhRiFpFmG6FcOMFhc5HEJhmKtF8kK+it5+QhwwDR0UWjy93W9y6dRDEupp/2KKIeHhxRG8uV6zEf+oXXRSLI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789073925; c=relaxed/simple; bh=ylWdr8yhyOUHr5p7rV7V/FTvMFhwSjE7Fa4ndWREMxM=; h=Message-ID:Date:MIME-Version:Subject:From:To:Cc:References: In-Reply-To:Content-Type; b=MYhisBktPPoVh+ZQCIOEJ1Z9Dr/U1TJjiP1rr2FyH2x1ZW9ccScagt294ACOyMcFg2+K/fpc8nuz1zVBhVcIK1DXwnFhLIFH10w3z804tB7d5VJ8Krn75Z916SJ3xhPa8mlwOT6X/xpmh9Yb2cEuqLf4Z0R1xqcXmqtBRTyx6ww= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk; spf=pass smtp.mailfrom=kernel.dk; dkim=pass (2048-bit key) header.d=kernel-dk.20251104.gappssmtp.com header.i=@kernel-dk.20251104.gappssmtp.com header.b=JCWIFFcL; arc=none smtp.client-ip=209.85.160.41 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.dk Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=kernel.dk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel-dk.20251104.gappssmtp.com header.i=@kernel-dk.20251104.gappssmtp.com header.b="JCWIFFcL" Received: by mail-oa1-f41.google.com with SMTP id 586e51a60fabf-478c01da5cbso93806fac.3 for ; Thu, 10 Sep 2026 13:58:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20251104.gappssmtp.com; s=20251104; t=1789073919; x=1789678719; darn=vger.kernel.org; h=content-transfer-encoding:content-type:in-reply-to:content-language :references:cc:to:from:subject:user-agent:mime-version:date :message-id:from:to:cc:subject:date:message-id:reply-to:content-type; bh=227EuAsNywH5Ru6uyjfcvigTr1soLZnaZRqqI+5pgxA=; b=JCWIFFcLxLQxXdXDZEqLRBuXsJhUNNgngvc5gWsDUDvJybqybK9yVb7iLek50ShSMZ /weV9JaumU1fbMQSuJRjtmii5oKcvXI7hapFyIj9WN1anPieaNLAHzzxFVkj8Ivrd/Jl pbN/PxTQogxvZNrlHqRZtGoAM8uAriRL0ZuTT5QF0L3VfSsLvn7cHYJWEnnsRDuATUDR ol3EcgyDzCYe1VdcsqdVzSFGG63cpGPsck4oVgcEVsNpWQ6wl7Imye9o2679pizPWvOH XPgaL+71rKMZA1s640W3tlBhJbBFo9l3PYafygM90yKbz34uCamWM5ssODooIH9n/OZG 4SRg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1789073919; x=1789678719; h=content-transfer-encoding:content-type:in-reply-to:content-language :references:cc:to:from:subject:user-agent:mime-version:date :message-id:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=227EuAsNywH5Ru6uyjfcvigTr1soLZnaZRqqI+5pgxA=; b=BAX/JyN3AoClMU1eJSpNcduOzje1t09bYPxg0XN09JBGX4feoiLcZMcQohKA+c7OyF R2JMCt/IAjFZA3Z1Ud01jdwXw9ZxAQ3ycU1KchlDxfUzWXsfB089JkDe1gNJVVgHRLIG tOVM2Eq9J8v/88K7kSHuz+BzeQMkxnzfRlI+HBAHlGQ3joV7Fx4bEyLr+8lnkJvhEcJF 3YmVovrxud6XbBk6YQdzUnjBMxDUfdzYuTIMezGi8T4GwMC1dAyJ/SWA4jTKuzjJE4gP TmRNQH4wilkZ8wGfaP9wKruMfvB9YD4qx2aiEGRAye65kum9YoiiuzePoGhSUKH3Q5iz iFMQ== X-Forwarded-Encrypted: i=1; AKwUvBx9SjyYFkl8gM0sxLKf5HJRYtwEkksbCdo/lMA/A7Bf8yq2YWfeakQ6Lc9TWJTgANhRT5EueGkrlDWfHQ==@vger.kernel.org X-Gm-Message-State: AFuF++nwSTcq4ue+FWapu7LuXGs9aGlg16vlkjBcNAyuaCndm7NJshP1 aqtIuSXC5ynGfeF1sNCLBm6NVw9ON1sngkOBQ0ecjM6JJ3Lab6cWfeErTZa061/m7xU= X-Gm-Gg: AYBFou3DHoY1Nd8tN74JVwHq1VVqTtmYgPhvhBB9YxVj4//63dKo8EQ8Meuj7EhQMHT VKZ9CUsPXCkVDlaepQmFOYmFbyogJ1zE+kGDvmwF+fZPAaj7RGCQ0H2pJygmgE729UPLN2oPjoq KvlwFZoIBUnFYHHZz5J+bBy4V6f/H6OGXObUYipg61bJB9M1xi9jCYKWHVlpzw05IG3GEwy6EBt TvulvMF3WBqvU7aDQGrhonmYkxChwkFdxIhrxligg67krmipQJGkm+qaZrk+8S6GqbLV+4cDtvN YRCSa59NnfErZvKOKTg4O3cATyAMVRwdt98LAWiFY6i2P9rGTpFUGWeJNcnUlYM5CMPM0wh2V4t wNQvu4tc54IOF4L8VnU7S5jwWfG8ZNkhpuGp3I587sXto952Khgmx2r7EYV7G5J7hDafLUX/87H s25W1SL3IL3pERmyg8FGwZY5NVfS7ovjeRTIGa6rWX0CKsKdGw0f+5mQHWnzE7aJC1SV4/Gom4y gP05ZhSZWGqedIBmC0VtewuXRfw8RHE1InnRGei7ppLyrStDJrrG0/0 X-Received: by 2002:a05:6820:3411:20b0:6c0:5630:bdef with SMTP id 006d021491bc7-6c0bd97850emr353461eaf.67.1789073919642; Thu, 10 Sep 2026 13:58:39 -0700 (PDT) Received: from [192.168.1.102] ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id 006d021491bc7-6c09a122443sm1108879eaf.9.2026.09.10.13.58.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 10 Sep 2026 13:58:38 -0700 (PDT) Message-ID: Date: Thu, 10 Sep 2026 14:58:36 -0600 Precedence: bulk X-Mailing-List: linux-media@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v5 00/16] Add dmabuf read/write via io_uring From: Jens Axboe To: Keith Busch , Christoph Hellwig , Sagi Grimberg , linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org, io-uring@vger.kernel.org, linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org, Pavel Begunkov Cc: Alexander Viro , Christian Brauner , Andrew Morton , Sumit Semwal , =?UTF-8?Q?Christian_K=C3=B6nig?= , Nitesh Shetty , Kanchan Joshi , Anuj Gupta , Tushar Gohad , William Power , Phil Cayton , Damien Le Moal , Alasdair Kergon , Mike Snitzer , Mikulas Patocka , Benjamin Marzinski , Vishal Verma , David Sterba , Ilya Dryomov , dm-devel@lists.linux.dev, nvdimm@lists.linux.dev, linux-btrfs@vger.kernel.org, ceph-devel@vger.kernel.org, Jason Gunthorpe References: <178907372259.484803.15807864431748251506.b4-ty@b4> Content-Language: en-US In-Reply-To: <178907372259.484803.15807864431748251506.b4-ty@b4> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 9/10/26 2:55 PM, Jens Axboe wrote: > > On Sat, 01 Aug 2026 16:46:12 +0100, Pavel Begunkov wrote: >> The patch set allows to register a dmabuf to an io_uring instance for >> a specified file and use it with io_uring read / write requests. The >> infrastructure is not tied to io_uring and there could be more users >> in the future. A similar idea was attempted some years ago by Keith [1] >> (from where I borrowed a good number of changes). Later it was brough >> back up to life by Tushar and Vishal. >> >> [...] > > Applied, thanks! Eh no it is not applied, was just looking at the series locally and I guess it got added to the b4 ty pile. I am, however, wondering if we'll see a v6 of this soon? I had some comments on the nvme dma mapping, that can be improved, but I'd rather defer that to post getting this included. If the series is dormant, just let us know, and we can pick up the bits and pieces. -- Jens Axboe