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=-3.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_GIT 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 45E94C282C4 for ; Mon, 4 Feb 2019 17:09:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 1F8B92087C for ; Mon, 4 Feb 2019 17:09:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730412AbfBDRJi (ORCPT ); Mon, 4 Feb 2019 12:09:38 -0500 Received: from foss.arm.com ([217.140.101.70]:58642 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725992AbfBDRJi (ORCPT ); Mon, 4 Feb 2019 12:09:38 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id C383EEBD; Mon, 4 Feb 2019 09:09:37 -0800 (PST) Received: from e110467-lin.cambridge.arm.com (e110467-lin.cambridge.arm.com [10.1.196.75]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 414C73F589; Mon, 4 Feb 2019 09:09:36 -0800 (PST) From: Robin Murphy To: will.deacon@arm.com, mark.rutland@arm.com Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, suzuki.poulose@arm.com, peterz@infradead.org, tglx@linutronix.de, bigeasy@linutronix.de Subject: [PATCH 0/5] Fix Arm system PMU hotplug issues Date: Mon, 4 Feb 2019 17:09:03 +0000 Message-Id: X-Mailer: git-send-email 2.20.1.dirty MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi all, Following the report of a preemption-related bug in arm-cci, it turns out there's a fair bit of cleaning up to do in this area. I've started here with the Arm drivers that I'm fairly familiar with - I suspect the hisi/qcom/xgene ones suffer from similar issues, but it's going to take me a while longer to figure them out in detail. Robin. Robin Murphy (5): perf/arm-cci: Fix CPU hotplug race avoidance cpu/hotplug: Export __cpuhp_state_add_instance_cpuslocked() perf/arm-ccn: Fix CPU hotplug race avoidance cpu/hotplug: Add locked variant of cpuhp_state_add_instance() perf/arm_dsu: Fix CPU hotplug races drivers/perf/arm-cci.c | 22 ++++++++++++---------- drivers/perf/arm-ccn.c | 25 +++++++++++++------------ drivers/perf/arm_dsu_pmu.c | 8 +++++--- include/linux/cpuhotplug.h | 6 ++++++ kernel/cpu.c | 1 + 5 files changed, 37 insertions(+), 25 deletions(-) -- 2.20.1.dirty