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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BC42FC7EE43 for ; Sun, 11 Jun 2023 15:22:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230212AbjFKPWG (ORCPT ); Sun, 11 Jun 2023 11:22:06 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50992 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229464AbjFKPWE (ORCPT ); Sun, 11 Jun 2023 11:22:04 -0400 Received: from mail-pf1-f175.google.com (mail-pf1-f175.google.com [209.85.210.175]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4F8181BB; Sun, 11 Jun 2023 08:22:01 -0700 (PDT) Received: by mail-pf1-f175.google.com with SMTP id d2e1a72fcca58-653436fcc1bso2879531b3a.2; Sun, 11 Jun 2023 08:22:01 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1686496921; x=1689088921; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=RkO45KeJdEpx3Se2ZTh73OLYZQ+QPKr/D2y/xQd9e3U=; b=LEgZhzFj35eShBZpeHUCRV4r7KW1jqD48U3e0rbJaMVq6FrYhs93ZGTlpMjm3u3dKS FG74fjl+OkRg2VjK3Xzq07gsyVjFDwg5jVS/HS6BKZfbAZ5hPdZ1JX9ou59TELowWMnT 0cugRZtoAlGhNr/m4A+D2MbZtHe/VLc9aYouUHZ7VaSx3sdOzJYY8jHAlk7CDdb6Wjf3 +R69JNoHYi0bd61rbndSujP8uj7+WH6HUu1uR0S0A5oTHdva7zm0yl8Dv9o2YVt4s0dm fWOvjh/57Ly0H877LzCxHxc6sp42+d08j4aLnn/izW8R6AJRMlNdsEIIXJDIzw6kboxD 49pg== X-Gm-Message-State: AC+VfDxeLedwO52gHRuDKsESTD8IvIA3rvUlvYFdaKt5p8BBao0aSM38 mx7OAArNoBM6q8xlOb0jplg= X-Google-Smtp-Source: ACHHUZ4d4NpK7AJHOF6a4bBcWkXSodbTR9hYUf0gLKHkzP/qRhS+ld13K10x82nWt42VQEJeypafpQ== X-Received: by 2002:a05:6a20:8f1e:b0:103:883b:10c1 with SMTP id b30-20020a056a208f1e00b00103883b10c1mr8410722pzk.41.1686496920530; Sun, 11 Jun 2023 08:22:00 -0700 (PDT) Received: from [192.168.51.14] ([98.51.102.78]) by smtp.gmail.com with ESMTPSA id e10-20020a62ee0a000000b0064fdf5b1d7esm5449598pfi.157.2023.06.11.08.21.59 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 11 Jun 2023 08:22:00 -0700 (PDT) Message-ID: Date: Sun, 11 Jun 2023 08:21:59 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0 Subject: Re: blk-mq: check on cpu id when there is only one ctx mapping Content-Language: en-US To: Ed Tsai , axboe@kernel.dk Cc: kbusch@kernel.org, liusong@linux.alibaba.com, linux-block@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, wsd_upstream@mediatek.com, peter.wang@mediatek.com, stanley.chu@mediatek.com, powen.kao@mediatek.com, alice.chao@mediatek.com, naomi.chu@mediatek.com References: <20230531083828.8009-1-ed.tsai@mediatek.com> From: Bart Van Assche In-Reply-To: <20230531083828.8009-1-ed.tsai@mediatek.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 5/31/23 01:38, Ed Tsai wrote: > commit f168420 ("blk-mq: don't redirect completion for hctx withs only > one ctx mapping") When nvme applies a 1:1 mapping of hctx and ctx, there > will be no remote request. The above sentence is incomprehensible. Please make it comprehensible. > Signed-off-by: Ed Tsai > Signed-off-by: Po-Wen Kao This patch comes from Keith Busch. Why has his name not been mentioned? See also https://lore.kernel.org/linux-block/ZHY2TUrKVBj2xGE2@kbusch-mbp.dhcp.thefacebook.com/. Bart.