From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1C012C49EA5 for ; Wed, 23 Jun 2021 22:24:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F24386100A for ; Wed, 23 Jun 2021 22:24:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229900AbhFWW0Y (ORCPT ); Wed, 23 Jun 2021 18:26:24 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53678 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229758AbhFWW0W (ORCPT ); Wed, 23 Jun 2021 18:26:22 -0400 Received: from mail-io1-xd33.google.com (mail-io1-xd33.google.com [IPv6:2607:f8b0:4864:20::d33]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0A180C061574 for ; Wed, 23 Jun 2021 15:24:04 -0700 (PDT) Received: by mail-io1-xd33.google.com with SMTP id g22so5466354iom.1 for ; Wed, 23 Jun 2021 15:24:04 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel-dk.20150623.gappssmtp.com; s=20150623; h=subject:to:references:from:message-id:date:user-agent:mime-version :in-reply-to:content-language:content-transfer-encoding; bh=0l0wLNR77GMohwjNSfFqVBgcOwDqqJnWYBylz7PW6SQ=; b=ZQv2q8CHfpxTd+1bctfkF5Og6+VlNNcZTpi2VJefL0TsTwN/I26TnK24eTRAZ5XmlT KD1byGLkKBqLsNPcJdKlPnpISMiDNDUqFMVpLRRDb4ctE7oXKuRBydG/Y8tOPTCm308U NP+97iKmn3SK7YAHQyH7nV3rXj7f7k+o3RQ6SCX7cGyRyzEYg1xTvRujf2AJXHCv7s8S IGz76ZZiNPIbVi+6jlK3oMtY71mrkpU7FpVq/NLkJtzTBtgwz7QRacVr+ZWMmGGVCCS2 gKpAYCXUvAj7gFOl+NcetYvmd7FtCgmmICq+T+QNc8bsMsfN6zo3keNnkd72hdBiYvqy 8qvw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=0l0wLNR77GMohwjNSfFqVBgcOwDqqJnWYBylz7PW6SQ=; b=ZuRjsT4BYPnyrcEfZqoYQvDDjTWeY4aPs/XgcQB5N1yKyhS67HlgjboEKThcohu0do yoeLITRy3c9bCDpVRv4KRJJ3UNvjO2dXe6Sx5S6JWkO2KKST3610Em5UwFVwrEdjjGCU /bzsK10w9RyZ011ZgtJdqwQM8UkVMDdSorhWZHWlqWSegyuT7/F+Kvn/k5ZVCBaC7JOI 3n/4nvrW5OqAeS/duyTHRXaI0hcJwylG38t/DfRs3kA/9Z55Cp4xmg2lsAO9iiVzrn7l N+iPoVyAiy65SJQjVmXwBzv+OsN4fXPnZYwM9wakLUknrrHymGjsnHccPQc5l+U9/Z+a NR+g== X-Gm-Message-State: AOAM530i4rx0yMEeqA/KI0Rl61w7QLqt+Phn23jlCdtHt0oVBWk5QWR/ 9xDpvUyb5WA84dofJIBiz+xXPPDIXc7+wQ== X-Google-Smtp-Source: ABdhPJxBCaRjTIje5xEeMYTOnDdq8f5SGVbPe70CDXRRzqaAiWHyjXViY6nq9TPIAAcPt/yx0R/DhQ== X-Received: by 2002:a5d:83c4:: with SMTP id u4mr1473648ior.21.1624487043319; Wed, 23 Jun 2021 15:24:03 -0700 (PDT) Received: from [192.168.1.134] ([198.8.77.61]) by smtp.gmail.com with ESMTPSA id e4sm157435iov.33.2021.06.23.15.24.01 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 23 Jun 2021 15:24:02 -0700 (PDT) Subject: Re: [PATCH v2 2/2] io_uring: Create define to modify a SQPOLL parameter To: Pavel Begunkov , Olivier Langlois , io-uring@vger.kernel.org, linux-kernel@vger.kernel.org References: From: Jens Axboe Message-ID: <6a566122-c4b2-6594-cc94-c578988d3f80@kernel.dk> Date: Wed, 23 Jun 2021 16:24:01 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.10.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 6/23/21 4:14 PM, Pavel Begunkov wrote: > On 6/23/21 7:50 PM, Olivier Langlois wrote: >> The magic number used to cap the number of entries extracted from an >> io_uring instance SQ before moving to the other instances is an >> interesting parameter to experiment with. >> >> A define has been created to make it easy to change its value from a >> single location. > > It's better to send fixes separately from other improvements, > because the process a bit different for them, go into different > branches and so on. It's not a huge problem even if they go to different branches, for these I'd be more comfortable doing 5.14 anyway and that makes it even less of a concern. -- Jens Axboe