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[23.128.96.18]) by mx.google.com with ESMTP id k22si3421654jad.13.2021.11.01.05.52.03; Mon, 01 Nov 2021 05:52:15 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@infradead.org header.s=casper.20170209 header.b=PklqNkLp; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232541AbhKAMxX (ORCPT + 99 others); Mon, 1 Nov 2021 08:53:23 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34148 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232507AbhKAMxW (ORCPT ); Mon, 1 Nov 2021 08:53:22 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 24FEBC061714; Mon, 1 Nov 2021 05:50:49 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=RL3hnt8gJU6frPUOEVXfNSSid9qg9EK1F0andJuRsYo=; b=PklqNkLpc8XThjjoH0WQp5PHjp 2P0kfCnLEMG73lnHd2wpZacv9Z0T6gd9jcv1KHpBh55JQBxZy3WKjvaSKGVRxPm7lxpw1wmTifrLF WeubHfJwD7K1qzjPZ0h2/0cKQ8A93IceSwN4QnBJdLlQOWOgO7nru9NYqtVE/OI9PV42yGYYMmLdq tO+2Rz8um+32jqjtFqQSnsk97MMI97giaV/eAmi2Ioe0uhmHAaFoO2pzBHvIBc+R8yWFzr5kMr+KE mY2g9prbvDtsYBHabFLAxx5w2GljEq6zAZE8SEv3DSLtCFDfW/zXix/UnxIcHi1L3i1zlPg/LOLG9 ZtD9luvA==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mhWgN-003lwE-9H; Mon, 01 Nov 2021 12:45:15 +0000 Date: Mon, 1 Nov 2021 12:44:59 +0000 From: Matthew Wilcox To: Yafang Shao Cc: akpm@linux-foundation.org, keescook@chromium.org, rostedt@goodmis.org, mathieu.desnoyers@efficios.com, arnaldo.melo@gmail.com, pmladek@suse.com, peterz@infradead.org, viro@zeniv.linux.org.uk, valentin.schneider@arm.com, qiang.zhang@windriver.com, robdclark@chromium.org, christian@brauner.io, dietmar.eggemann@arm.com, mingo@redhat.com, juri.lelli@redhat.com, vincent.guittot@linaro.org, davem@davemloft.net, kuba@kernel.org, ast@kernel.org, daniel@iogearbox.net, andrii@kernel.org, kafai@fb.com, songliubraving@fb.com, yhs@fb.com, john.fastabend@gmail.com, kpsingh@kernel.org, dennis.dalessandro@cornelisnetworks.com, mike.marciniszyn@cornelisnetworks.com, dledford@redhat.com, jgg@ziepe.ca, linux-rdma@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, oliver.sang@intel.com, lkp@intel.com Subject: Re: [PATCH v7 00/11] extend task comm from 16 to 24 Message-ID: References: <20211101060419.4682-1-laoar.shao@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20211101060419.4682-1-laoar.shao@gmail.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Nov 01, 2021 at 06:04:08AM +0000, Yafang Shao wrote: > There're many truncated kthreads in the kernel, which may make trouble > for the user, for example, the user can't get detailed device > information from the task comm. > > This patchset tries to improve this problem fundamentally by extending > the task comm size from 16 to 24, which is a very simple way. It can't be that simple if we're on v7 and at 11 patches! It would be helpful if you included links to earlier postings. I can only find v5 and v6 in my inbox, so I fear I'm going to re-ask some questions which were already answered. Why can't we shorten the names of these kthreads? You didn't give any examples, so I can't suggest any possibilities.