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=-6.3 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, 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 C1EE9C4363A for ; Thu, 29 Oct 2020 02:08:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5AE6620738 for ; Thu, 29 Oct 2020 02:08:44 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="UxvNdOaE" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729856AbgJ2CF5 (ORCPT ); Wed, 28 Oct 2020 22:05:57 -0400 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:52673 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727068AbgJ1ViF (ORCPT ); Wed, 28 Oct 2020 17:38:05 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1603921084; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=fkWfC7xHRg1lPmbvoyIGn22t41mdB4f5tgL/7eVd4rM=; b=UxvNdOaEKNqnVqL2NAC2VnLXkxf2+qJ5wRsdkVS0oqUPyBLk3qnv/mRytj7d3frKtoZ5xL Ji1n0p9PJX8ZzQmi3doDL/plDYjLDpLw7i5rEn+T0VUw9K5y4row5K9lnnxRlG8AOfCIcB j9+CZfxVGJ8jysa+KlaOhRxt6zz4+4M= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-40-_uhFhELPM_WVyShU7iOP6Q-1; Wed, 28 Oct 2020 12:34:29 -0400 X-MC-Unique: _uhFhELPM_WVyShU7iOP6Q-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 2472E8EBA0A; Wed, 28 Oct 2020 16:34:28 +0000 (UTC) Received: from [10.10.115.31] (ovpn-115-31.rdu2.redhat.com [10.10.115.31]) by smtp.corp.redhat.com (Postfix) with ESMTP id EE8056EF4A; Wed, 28 Oct 2020 16:34:26 +0000 (UTC) Subject: Re: [PATCH] dcookies: Make dcookies depend on CONFIG_OPROFILE To: Linus Torvalds , Christoph Hellwig Cc: Viresh Kumar , Alexander Viro , Vincent Guittot , anmar.oueja@linaro.org, Arnd Bergmann , linux-fsdevel , Linux Kernel Mailing List References: <51a9a594a38ae6e0982e78976cf046fb55b63a8e.1603191669.git.viresh.kumar@linaro.org> <20201027085152.GB10053@infradead.org> From: William Cohen Message-ID: Date: Wed, 28 Oct 2020 12:34:26 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.3.1 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-Scanned-By: MIMEDefang 2.79 on 10.5.11.13 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 10/27/20 12:54 PM, Linus Torvalds wrote: > On Tue, Oct 27, 2020 at 1:52 AM Christoph Hellwig wrote: >> >> Is it time to deprecate and eventually remove oprofile while we're at >> it? > > I think it's well past time. > > I think the user-space "oprofile" program doesn't actually use the > legacy kernel code any more, and hasn't for a long time. > > But I might be wrong. Adding William Cohen to the cc, since he seems > to still maintain it to make sure it builds etc. > > Linus > Hi, Yes, current OProfile code uses the existing linux perf infrastructure and doesn't use the old oprofile kernel code. I have thought about removing that old oprofile driver code from kernel, but have not submitted patches for it. I would be fine with eliminating that code from the kernel. -Will