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=-1.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_PASS autolearn=ham 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 C6769C282CE for ; Fri, 5 Apr 2019 23:27:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8A0E02186A for ; Fri, 5 Apr 2019 23:27:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1554506879; bh=mcMU/aR5oZbRK0/am6slSOCd1xOeWPOoK4B1OWce+8o=; h=References:In-Reply-To:From:Date:Subject:To:Cc:List-ID:From; b=y97UlaiwdEimi5MrPqhzwAcjnG4ORFZg8PoL8Xxl8w2zZlYwfLApB5uccgl5vmjz/ i3v+Zco3bcrMyvwDEPAcjm87WHdKEbgbRJvSzgMrYXF1AM8wisvv1Pw0eIVjlct0lD oC53yDBhDCmZk+fkhOLj84LOUxbU6pqkuUJAVhSQ= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726353AbfDEX16 (ORCPT ); Fri, 5 Apr 2019 19:27:58 -0400 Received: from mail-lj1-f173.google.com ([209.85.208.173]:37283 "EHLO mail-lj1-f173.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725973AbfDEX15 (ORCPT ); Fri, 5 Apr 2019 19:27:57 -0400 Received: by mail-lj1-f173.google.com with SMTP id v13so6615586ljk.4 for ; Fri, 05 Apr 2019 16:27:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=2tA287do+ksgXuZoWPDuYwT6K5d2oSYrqKqVAiowrrk=; b=Gx97GmyyBEPz3pcEPwO5yCGkAW096HaSQe+zapmwu96uid7q/L9lnyXZqXmAKmrcek Y3XogV9K6+Sd/rJb/JI2/Hi3Bc7efV4mblqLeHY5tOiAAmuuAwkJ8fEi1S/7yxCAi9w7 a48d+7SpS9vZk0/3y/uRLTIPEoh6EPEy8PvCw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=2tA287do+ksgXuZoWPDuYwT6K5d2oSYrqKqVAiowrrk=; b=a6h5BQBuJmFjnUz6TkKAGWB2Fa4GRugBxapunZFVzlV26RfWDE5dBTvq/8tcKBV3wT nVpFxgpH7aVnqEF7ZcSCXWwjjg90OUaLQVc16oLG6qHDdEE6CrSlGDImFq82uLOppRcG 06fOGgmoX1+Z9UaDYoyRYxMPUs8eDQoTxljdUco1sF5oYCwwWigEoSEiuZYWEcBMlxSo 6bDTsic7+v384cvCD9lzoXknH3pfdJ/nuTGegRRbldqobAwJrtjfuhlSfw10pEJm5tmj OaY4GlPTE7oHhlDAw0x68DLR5p0iGi996ZjblKT99ttskTpF9n1vx5ZY/4E0bW2ENTTt eW0A== X-Gm-Message-State: APjAAAXfq0VfP3Wdqn1K4oNt/a0HTG8COtNEYuAyR4BeWDCVFPcAkXXy hIa7xCf2npiCxDIiPRI8g8Bsk1zehDU= X-Google-Smtp-Source: APXvYqwzht1jSdHz+h6zhkNOuwWQkPEmWt957Vf/WZSfDAkI67aNOYUYp+pAshQgOmcgk6pzbWylQA== X-Received: by 2002:a2e:88c1:: with SMTP id a1mr8456382ljk.78.1554506875586; Fri, 05 Apr 2019 16:27:55 -0700 (PDT) Received: from mail-lf1-f50.google.com (mail-lf1-f50.google.com. [209.85.167.50]) by smtp.gmail.com with ESMTPSA id q77sm4678612lje.11.2019.04.05.16.27.53 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 05 Apr 2019 16:27:54 -0700 (PDT) Received: by mail-lf1-f50.google.com with SMTP id a6so5531097lfl.5 for ; Fri, 05 Apr 2019 16:27:53 -0700 (PDT) X-Received: by 2002:ac2:485a:: with SMTP id 26mr8165931lfy.128.1554506873595; Fri, 05 Apr 2019 16:27:53 -0700 (PDT) MIME-Version: 1.0 References: <20190405192115.17416-1-longman@redhat.com> In-Reply-To: <20190405192115.17416-1-longman@redhat.com> From: Linus Torvalds Date: Fri, 5 Apr 2019 13:27:37 -1000 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH-tip v2 00/12] locking/rwsem: Rwsem rearchitecture part 2 To: Waiman Long Cc: Peter Zijlstra , Ingo Molnar , Will Deacon , Thomas Gleixner , Linux List Kernel Mailing , "the arch/x86 maintainers" , Davidlohr Bueso , Tim Chen Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Apr 5, 2019 at 9:22 AM Waiman Long wrote: > > v2: > - Move the negative reader count checking patch (patch 12->10) > forward to before the merge owner to count patch as suggested by > Linus & expand the comment. All looks good to me now. I didn't apply and _test_ any of the patches, but they look sane and the numbers you quote are compelling. So ack as far as I'm concerned, Linus