From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qk1-f176.google.com (mail-qk1-f176.google.com [209.85.222.176]) (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 800713BD622 for ; Mon, 9 Mar 2026 13:24:40 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.222.176 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773062682; cv=none; b=fZVN4ShKigrwjn/18u7QUGVY2gNpeY8VPgzmrwh5xQnzDxg976EeuVlqtIbsegrwBTDZHtcHXPw2RMnbVaF9EM2WeDe6ZrBcdS27Xcm73F8pkVS885QdGVpy0of2SoYRK1rLWWiwzfgfbUx1qsHDZiKIZ2wvJkO/5p5SF8Z7j28= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1773062682; c=relaxed/simple; bh=V8KO6GqVaqahP9/O1cWxemAseKgl1ku9gN4j6PMP8eQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=aPRRzgrR9MTA4urPO4t3ZrNRU2EGYcqARS06f8iNCHaZBTbbyYbaUmWsxKumieuTJv5EOA6UYMF9RW6F+2GpARUWv8BZZ2LQP7FFS0ghkg7qVa1TOfb+XK8BEUUu8KjXHSgwSMptc1NVApkFxbbp2NBRfD3CcHxy1qsuhECUnT0= 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.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b=pzXtr3Ll; arc=none smtp.client-ip=209.85.222.176 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.20230601.gappssmtp.com header.i=@kernel-dk.20230601.gappssmtp.com header.b="pzXtr3Ll" Received: by mail-qk1-f176.google.com with SMTP id af79cd13be357-8c70b5594f4so1182341685a.1 for ; Mon, 09 Mar 2026 06:24:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1773062679; x=1773667479; darn=vger.kernel.org; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date:message-id:reply-to; bh=ZWdO/bTxThCt2UJ38v8pF9JafjdbDv6ZEsdeftb80X8=; b=pzXtr3Ll9CIVeJl5ewTrU6VfVcYjlvbYapKm8MuPFMsy8yTHGErM0Aq/EWv5i5iKMJ P2ucnR7i5lcwLW5qtqnZjIcV2BsqY8c9j1JB72u3qulqdgaEpS5PSBfaWhOPvFR+5VBp GvqT9t7XXMq2cinyBIlt1XvpnNUVPPs8yfBzW3kDcdFc05dwXhmeO+VSuF5ffxpjF0ak Ju7eVrPEi3MlRwKPzRy7w/KSnVH3LYQcKDPyvjio0Effgfxo2W+wLRWFBv+iMV4E0rEx xO0jxiNX5Q6KiFFvO+0Z3aVPa+zrSpPuMTIJPIi5y2PglIRxV3wqGzlOQ5xA9YqnYBOh LU1A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1773062679; x=1773667479; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-gg:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=ZWdO/bTxThCt2UJ38v8pF9JafjdbDv6ZEsdeftb80X8=; b=Irz3crsx1YXK4V3wae6K/6bjo9YDGJYE5JoRyxeyQL4orTrn4dWKwxH4CHaA4jrGWl WaouLTqNGu7yqi1Q+i4b756L5RSsFsOIk/orKgo1tI6Ok32dIJt9pqK0LNza8oKVrvdU 0x/iJPixyIKosSiETcfEMmXxbAE708T7HYtYuO3WVVrMGdLF3HBZ6NwZ2/j7zCPX0qvK a17fHFnf7YqP1Jsmw/OaLk0RTmpxgwsH+QCGfDr8QzLbEt6QVwCEhQmSVgv/LlGGIPPy MNOWNlqVjhj0G0LCmQxPNB3txXNpYu6IW6Pj143VulBCOUrrgvC5UjqKUKp+ENMthI1q ZZ1Q== X-Forwarded-Encrypted: i=1; AJvYcCWuYKeYGkHYojxGr266s/ApQnCnl3AT5KfTxV9CQfV23NW/QGulDhzolAHrT2hOZBKbm847RCXg1A==@vger.kernel.org X-Gm-Message-State: AOJu0Yx5dHab7BxDF1ngIZ2J9+kZB6OH9doqFBt2aeYWnSyR27pdiFE9 KwLF1lMeVKRgLTxWNAQaTyr6ZmhJMSjNGBVOjxjqx0Q2AzwrhHU+nRPwhncCDYIm77RDsxDfjZk sM0whO94= X-Gm-Gg: ATEYQzxCgNQsQcQ3zdx3gsESmvSbr1vQxYYIUu4LSY/4thp/5svnJ+ibcV+vO5v0jAO h5eHqUbN1tYVkGfIUtBP4EqM7NBsCoGnxO6764PihocO4LYr7PLz/tt2SBhF2VpNDNqUYkhl0S1 fQ0uTIYMrtLdWpgjmpoMU+crCFVdDcuu7IIdbdZ3ARIyG6gvCLDAPUe8rwKFCI8TAfDmwbj8iQ/ ygI/7t9NHaRbjhjJGB6FY1tIHe1MDjtz/hdymLIJDMSve1AaT/p8D1i3HsacgS86uRubT0KvHxu cdBlhPICR8JxTGA8xap/4PxMkfuM9KIhKWxMBGV0ucSJI0G6lEoPfX1La/KCl1WPWHcvczWOXyD KLHrNXhoqwDk51ubeta1t9gbYv4NbGT5I2+4y0UCU5ngBZXo48E3CPXNVE72DiRNJbzLo1CMwEh /y5ZyKYkhMIZxv3gWJvrOGk+iRcaYNLAQf3PRr3Ri1RLhtP13YdA== X-Received: by 2002:a05:620a:1a1c:b0:8cd:8452:9b4 with SMTP id af79cd13be357-8cd84520b72mr498646385a.12.1773062679458; Mon, 09 Mar 2026 06:24:39 -0700 (PDT) Received: from [172.19.0.48] ([99.196.133.212]) by smtp.gmail.com with ESMTPSA id af79cd13be357-8cd90608105sm65498785a.34.2026.03.09.06.24.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 09 Mar 2026 06:24:38 -0700 (PDT) Message-ID: Date: Mon, 9 Mar 2026 07:24:30 -0600 Precedence: bulk X-Mailing-List: io-uring@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH 1/1] io_uring/zctx: separate notification user_data To: Pavel Begunkov , io-uring@vger.kernel.org Cc: Dylan Yudaken References: <025de231-a6d2-4fa8-91e5-f4ab81d16e7f@kernel.dk> <5fa237b6-420d-413a-b7b5-9f85d9f1e8ba@gmail.com> <64ab6b3e-3746-4076-9c0b-b2edc2de92d1@kernel.dk> <69a2d3ce-5c77-44f9-99be-1b558cf4c4ca@gmail.com> <133c27e8-7b5f-4754-9f8a-17d96e736621@kernel.dk> <3888d916-259b-4d1f-96c2-157c289d867e@gmail.com> <5eeb233d-74e4-453c-ad18-f30382dc44e7@gmail.com> <56a3e17b-8ad1-4623-bc8c-e8f4e9f4e265@kernel.dk> <218c175c-680c-4ee2-9e00-c81202e4841b@gmail.com> Content-Language: en-US From: Jens Axboe In-Reply-To: <218c175c-680c-4ee2-9e00-c81202e4841b@gmail.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 3/9/26 7:21 AM, Pavel Begunkov wrote: > On 2/17/26 15:15, Jens Axboe wrote: >> On 2/17/26 8:03 AM, Pavel Begunkov wrote: >>> On 2/17/26 13:12, Jens Axboe wrote: >>>> On 2/17/26 4:15 AM, Pavel Begunkov wrote: > ... >>>> The patch should just be removing that addr3 -EINVAL case, and adding >>>> the two lines that check IORING_SEND_ZC_NOTIF_USER_DATA, and if set, assign >>>> notif->cqe.user_data from addr3. >>>> >>>> But I object to saying this is a "degraded" uapi, to me it's very much a >>>> better one as it allows all values of user_data, rather than have some >>>> magic 0 value that's not valid for no other reason than force policy. >>> >>> Well, we clearly disagree on that one. >> >> In the spirit of making progress and not wasting anymore time on this >> fairly fruitless discussion, I'm fine with adding the else branch, and >> hence v2 as-is. > > Looks like it got lost / forgotten? I can't find it in for-next Indeed, I think that was waiting for last weeks rebase. Did both now, was OOO Wed and on a plane back now, just catching up. -- Jens Axboe