From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f172.google.com (mail-pf1-f172.google.com [209.85.210.172]) (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 A690B1CCB42 for ; Fri, 6 Sep 2024 13:33:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725629640; cv=none; b=oeJ5VLg/T0nbvUMrVe8glSaMNzQ+oUxMGD9UYKTTg+lEIxmNVCOXX/PMdXsgbEjVjFRlPYtnotA/6Ewbp/77sB8tG78h4HVB0lARNPlpCbIRItviKY3pD+AGDdQskwRDlVY3i6BSIdY+rQiFBq//fo7Cl37U4SSvgJ7okVWVGlc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1725629640; c=relaxed/simple; bh=HNdjtfOQm752sZTMDUmrsUHn0oF61IxJcRSvx06fsR8=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=WDG3sBmbshFZDoW98CVtq+Bbb2eQHOOtPEjJ8B+9XS1GgQpzBFnAJ7rhbsadUo8751k05xMG3C2/1T27LwlvKEWe3IBc58hg+6rwO0KhHSznTK6Q3f0ePdCZCe1to9x0ssMWkWavExGkaBPJJvES+xp/X84hjOOp1G/YXHhmvRs= 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=iOvStNji; arc=none smtp.client-ip=209.85.210.172 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="iOvStNji" Received: by mail-pf1-f172.google.com with SMTP id d2e1a72fcca58-718da0821cbso443221b3a.0 for ; Fri, 06 Sep 2024 06:33:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20230601.gappssmtp.com; s=20230601; t=1725629637; x=1726234437; 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=M9k9mGUQh6ymK70nACgtx8FEIFPdT0heHOtbTeYory4=; b=iOvStNji6tZY8AjUdXNv8Xf9HEyvB0MYK5tvSJm6LonYMIRMyNHpeE+MsxbxWlpVlm uAzdolQnL/vbm16wtrrZrXuqKGzTbO7ri/wBpOROpsVqb2zQ99n5V0QJoJD5zDJwt33I waz9DemG8gkrqXVcn3x0z8y1E/tXyAEg1FxAOz+htoPXlQw66hXJE6W+jjdgFbb1hbtE 0b/DOkyzT5laNfUHIvpb4dadTj68UZ7Avkl0DcdJYZ+bcmF3WSDZUDKuQO2GPHwl90Yo +eUgYRYpThwpaKZVTY1OIsOJ5hyI9RukvXcGMZRrpginnaoRLUbfxhIvwdwqzVrWvrwt zBYQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1725629637; x=1726234437; h=content-transfer-encoding:in-reply-to:from:content-language :references:cc:to:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=M9k9mGUQh6ymK70nACgtx8FEIFPdT0heHOtbTeYory4=; b=qsFzo6rJdmP46H3wnCFZ0XXbdm7y2mcLSzubahVYd/OKEBYDJ9iV6tLCELUVnKb0H0 +86Q0ZWEWiXb3L330f/xO/WRGbLkg4sgzYg9hqmMEokLNNvpYBx8Kslvnou1YKYsVg0U eTT9GbQNRo/xEMJpcBcVR/L6kt7/dD4TTOpfqtKSvqIoOGozeGCjj9/T/DJFvTP5WayW mtW6e14zwmmJTyAR7Ai6iOtkGAGNRH16xW8Y5RFshEaEx+XrIRfuipCWTk842HROJMbp g6yrzQZ65Mo3hi8Dc2FqFLn3KHg9Wcfnud6swRqY+u9hjM19JSRG9HwYnqLrKI4gzHzk mKxw== X-Gm-Message-State: AOJu0Yy0oVE79Lp3d8S+W1vLC/fwQ1e1nuUwJumEkdnnt5oDLr4SqaVo iiVIJiS8QgHnoFzgjczRlKSQH0t6zCTjsMRNTeSNSt7XXjaqxukC1c8vaqZPuko= X-Google-Smtp-Source: AGHT+IEcVspPJX4rn6qrwIEknWXoGvCdqiyWe0o9sFNLwhGQ4L8zpn2t0HOZ3tCOxfV0NxgDaoDFcg== X-Received: by 2002:a05:6a00:21c1:b0:70d:2708:d7ec with SMTP id d2e1a72fcca58-715dfaeac85mr30870820b3a.5.1725629636689; Fri, 06 Sep 2024 06:33:56 -0700 (PDT) Received: from [192.168.1.150] ([198.8.77.157]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-718e01265f5sm251840b3a.91.2024.09.06.06.33.55 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Fri, 06 Sep 2024 06:33:56 -0700 (PDT) Message-ID: <08c550af-1e83-4372-ae21-003931b77927@kernel.dk> Date: Fri, 6 Sep 2024 07:33:54 -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][6.1][0/2] io_uring: Do not set PF_NO_SETAFFINITY on poller threads To: Felix Moessbauer , stable@vger.kernel.org Cc: io-uring@vger.kernel.org, cgroups@vger.kernel.org, asml.silence@gmail.com, dqminh@cloudflare.com, longman@redhat.com, adriaan.schmidt@siemens.com, florian.bezdeka@siemens.com References: <20240906095321.388613-1-felix.moessbauer@siemens.com> Content-Language: en-US From: Jens Axboe In-Reply-To: <20240906095321.388613-1-felix.moessbauer@siemens.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 9/6/24 3:53 AM, Felix Moessbauer wrote: > Setting the PF_NO_SETAFFINITY flag creates problems in combination with > cpuset operations (see commit messages for details). To mitigate this, fixes have > been written to remove the flag from the poller threads, which landed in v6.3. We > need them in v6.1 as well. Putting these in 6.1-stable is fine imho. -- Jens Axboe