Received: by 2002:a05:6358:9144:b0:117:f937:c515 with SMTP id r4csp1022144rwr;
        Wed, 3 May 2023 09:11:06 -0700 (PDT)
X-Google-Smtp-Source: ACHHUZ4fczw+SzQz75ECGcpOj5Sn0GvIbwIir4DbCZOEF0exHq2tpQDTjE9ElX1ljQG4KbnBzaWy
X-Received: by 2002:a05:6a21:32a2:b0:cb:af96:9436 with SMTP id yt34-20020a056a2132a200b000cbaf969436mr8694811pzb.0.1683130266126;
        Wed, 03 May 2023 09:11:06 -0700 (PDT)
ARC-Seal: i=1; a=rsa-sha256; t=1683130266; cv=none;
        d=google.com; s=arc-20160816;
        b=q58bl9iW6yPX58TyAnUEP2aXUuo+MdIHnhw+MUnmDobe3uv6raEKl2pcQe0Ri6qR8U
         reqF6hqkg2F74oO6HeD63nRz4kkUeJwQvlxNvisgV4/Ff73uteNR9SpNgrux8mw5MyGO
         0s1v90SaDaXk8OYyka6nv03CZapwIqzfNGPtvKUCowIwmRaOIfwBSoSVZNH8ksCEGY7m
         cgtxSKnuJhBVGkjyuNKypUqegTuTVWvLdmirchZK9FVlIPfAzP4EtVIxwUPQSe7/UCa5
         Gt+sNaLZICEkC4FwxkLzjU7EMtLFjB7toxKVceforpdlOSxrEj7FCUDqKyxgGU7lW/mG
         CVag==
ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816;
        h=list-id:precedence:user-agent:in-reply-to:content-disposition
         :mime-version:references:message-id:subject:cc:to:from:date;
        bh=9zti7q8ZyeKskrlUo5qOh/lOMsR3cQk6t/fkiOgVlZ4=;
        b=MZwGTIjSZfX2BsC0Twf8UAS0sUvn4QGzSVywsNm5QFnJkK9vm3aACNfkF4kA8BOsxz
         lK/NtixnfxXWHufmrwuUbzUUyhLiCWQuvMkNhFq4qAb9iP9CX1QrUtuH0zU/ATfTiQp+
         uFWgdtPbpmZ34X3c4KhLyclzvw/CW5dStuIA4C4BLG7+QTSa7tyMIqPSS9lDlAkN14bZ
         iDzyIsYZnLalkB2W5DJXEnkR3o/hLSgqnaRFh8F+3fP+ONONj+39CIMXu7tMopx0xMcH
         uGHdL+bIMHLVGcAA2b6TIoBLMW5rtbRloHZZ8UdZgO0UdT3vsVPRh5oorSxdVfrGMWqD
         ILQA==
ARC-Authentication-Results: i=1; mx.google.com;
       spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20])
        by mx.google.com with ESMTP id w1-20020a63fb41000000b0051b83af33desi32543700pgj.246.2023.05.03.09.10.50;
        Wed, 03 May 2023 09:11:06 -0700 (PDT)
Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Authentication-Results: mx.google.com;
       spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S229847AbjECQH6 (ORCPT <rfc822;bartvdrmeulen@gmail.com>
        + 99 others); Wed, 3 May 2023 12:07:58 -0400
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42138 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S229813AbjECQH5 (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Wed, 3 May 2023 12:07:57 -0400
Received: from verein.lst.de (verein.lst.de [213.95.11.211])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6C99D5598
        for <linux-kernel@vger.kernel.org>; Wed,  3 May 2023 09:07:56 -0700 (PDT)
Received: by verein.lst.de (Postfix, from userid 2407)
        id D258068AA6; Wed,  3 May 2023 18:07:52 +0200 (CEST)
Date:   Wed, 3 May 2023 18:07:52 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     jiweisun126@126.com
Cc:     linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org,
        kbusch@kernel.org, axboe@fb.com, hch@lst.de, sagi@grimberg.me,
        ahuang12@lenovo.com, sunjw10@lenovo.com
Subject: Re: [PATCH] nvme: add cond_resched() to nvme_complete_batch()
Message-ID: <20230503160752.GA683@lst.de>
References: <20230502125412.65633-1-jiweisun126@126.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20230502125412.65633-1-jiweisun126@126.com>
User-Agent: Mutt/1.5.17 (2007-11-01)
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_NONE,
        SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no
        version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Tue, May 02, 2023 at 08:54:12PM +0800, jiweisun126@126.com wrote:
> From: Jiwei Sun <sunjw10@lenovo.com>
> 
> A soft lockup issue will be triggered when do fio test on a 448-core
> server, such as the following warning:

nvme_complete_batch can be called from irq context, so I don't think
a cond_resched is a good idea here.