Received: by 2002:a25:8b91:0:0:0:0:0 with SMTP id j17csp3650220ybl; Mon, 3 Feb 2020 04:10:10 -0800 (PST) X-Google-Smtp-Source: APXvYqxhB/AXHXrbx/qDLs5eheruQSUAKYpQAzNxgULnso59kf4VDnlBGtl+aWEk7kWks4Dpn+mF X-Received: by 2002:aca:e084:: with SMTP id x126mr14027588oig.97.1580731810427; Mon, 03 Feb 2020 04:10:10 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1580731810; cv=none; d=google.com; s=arc-20160816; b=VDDjFHOQ52DsrtOIbVLYftim5L45WUnMOM3voRzyUovO4ZQ9NlopLXwQ6KkUHmSDqG 0veb+KuDRSSQmc9qxdOBQUnEd6uNou/4iEBGwj9yiwuN0CN5pr+qxD18Dg8zxXZ9zCdW yflijIDMOVeB2+pnaUueMm6azHGSZ8Um65SciAOg7CbNHN/mf0BxEKsRyVjZV5D+f2BZ 2C6YxaI94Ytngb924KF2OyqcviN6ov0MCBYwCoMdCMPLu9crrRUZyQQDvY0I7P8WwQeC QYUCsUaE4j9zaER6zobW1Xwv1nFnKI8mkpAv5GfF9HPiBZQ5xw2uXJ4ilw6bjLPivh+W bMAw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:in-reply-to:content-disposition :mime-version:references:message-id:subject:cc:to:from:date; bh=K4OaiR9f3icmNLcFQQwvbHR56+Zzzk3TUB2V0UrNqrw=; b=W5FI7UgQClhSEVONz1vsAojp4ULmNikael7qquPpRrj7HivyzmKyPQpiALXuLaRz3e 5kAL7rIU6LUeXypAo7w7EQkvCGSu5WPveJ2CsadO9BQwMecxjCMXwRY1dBb8LiSq+Lq5 8fqRxvjIMEkEIAOZQXipSJydEJLRn/2tXQZXNJ0KezEEdksqWjjkQ3TxMQ7b2mnB6OGW pDIbqcc+gHFrHMSi58rX1GZikMco/7UnU2crl+LTGMfBuP26iwlzx6e4Sa2tqgmueUEJ 4qFUSzmK8P+6Y2QzqZMT2q03b8U2cJs2aHJ/ooDUHuf9jvGK26JxpbjoX3e5frJFMkeQ 0xQw== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id q126si8548615oia.8.2020.02.03.04.09.58; Mon, 03 Feb 2020 04:10:10 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727571AbgBCKwF (ORCPT + 99 others); Mon, 3 Feb 2020 05:52:05 -0500 Received: from Galois.linutronix.de ([193.142.43.55]:59294 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726992AbgBCKwE (ORCPT ); Mon, 3 Feb 2020 05:52:04 -0500 Received: from bigeasy by Galois.linutronix.de with local (Exim 4.80) (envelope-from ) id 1iyZKd-00082i-Px; Mon, 03 Feb 2020 11:51:55 +0100 Date: Mon, 3 Feb 2020 11:51:55 +0100 From: Sebastian Andrzej Siewior To: Peter Zijlstra Cc: mingo@kernel.org, will@kernel.org, oleg@redhat.com, tglx@linutronix.de, linux-kernel@vger.kernel.org, juri.lelli@redhat.com, williams@redhat.com, bristot@redhat.com, longman@redhat.com, dave@stgolabs.net, jack@suse.com Subject: Re: [PATCH -v2 0/7] locking: Percpu-rwsem rewrite Message-ID: <20200203105155.zg2facrg344uyfzn@linutronix.de> References: <20200131150703.194229898@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20200131150703.194229898@infradead.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 2020-01-31 16:07:03 [+0100], Peter Zijlstra wrote: > Hi all, > > This is the long awaited report of the percpu-rwsem rework (sorry Juri). > > IIRC (I really have trouble keeping up momentum on this series) I've addressed > all previous comments by Oleg and Davidlohr and Waiman and hope we can stick > this in tip/locking/core for inclusion in the next merge. > > It has been cooked (thoroughly) in PREEMPT_RT, and not found wanting. I did not suck it into -RT earlier since it look like work-in-progress (based on the review). Now if you feel confident, I will suck it in. Thank you. > Any objections to me stuffing it in so we can all forget about it properly? Sebastian