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=-2.4 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, 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 09E92C2D0E8 for ; Sun, 5 Apr 2020 03:45:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C6E8E206A3 for ; Sun, 5 Apr 2020 03:45:54 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="dAATpuWo" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726407AbgDEDpw (ORCPT ); Sat, 4 Apr 2020 23:45:52 -0400 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:25965 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726300AbgDEDpv (ORCPT ); Sat, 4 Apr 2020 23:45:51 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1586058350; 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=K6bjZYbv6VqM+RxwJTZGsFoIqwpjcB99cyO45E1FggI=; b=dAATpuWovw9CEzGqnAAymZHxC9aXA/oj69+C+zKJbSW+gNdknzpTOy250sXOhbOZBgQAaR i3WQ0q2UQHrhi/7otx7e3DGvHvz7Yq36jsfNXjzn3kOU7nMR5KhcjIIe5kVJ8YxmepECC9 +s4iBVbaH8wnXE/VCxzirA97m2UGTgE= 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-281-O11Yts25OACodvfb7RsZbg-1; Sat, 04 Apr 2020 23:45:46 -0400 X-MC-Unique: O11Yts25OACodvfb7RsZbg-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 10C14800D50; Sun, 5 Apr 2020 03:45:45 +0000 (UTC) Received: from llong.remote.csb (ovpn-112-153.rdu2.redhat.com [10.10.112.153]) by smtp.corp.redhat.com (Postfix) with ESMTP id 146E45C1B2; Sun, 5 Apr 2020 03:45:43 +0000 (UTC) Subject: Re: [GIT PULL] Please pull proc and exec work for 5.7-rc1 To: Bernd Edlinger , Linus Torvalds Cc: "Eric W. Biederman" , Ingo Molnar , Will Deacon , Linux Kernel Mailing List , Alexey Gladkov References: <87blobnq02.fsf@x220.int.ebiederm.org> <87lfnda3w3.fsf@x220.int.ebiederm.org> <328f5ad3-f8b3-09b9-f2f7-b6dae0137542@redhat.com> <86aa9fc6-6ac9-a0c2-3e1d-a602ef16d873@redhat.com> <5c04cc6d-ec44-b840-071d-248ac81a0f91@redhat.com> <9876d04e-32c9-dcaa-545a-bfecbf07ea74@redhat.com> From: Waiman Long Organization: Red Hat Message-ID: <59ee9556-6289-8630-f753-f1267d82f737@redhat.com> Date: Sat, 4 Apr 2020 23:45:43 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 4/4/20 11:35 PM, Bernd Edlinger wrote: >> To be symmetric with the existing downgrade_write() function, I will >> choose the name upgrade_read() for the upgrade function. >> >> Will that work for you? >> > May I ask, if the proposed rwsem will also work for RT-linux, > or will it be a normal mutex there? Good question. RT have their own special code for rwsem. I need to take a look at that to see if something like that is possible. Cheers, Longman