From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from fgwmail6.fujitsu.co.jp (fgwmail6.fujitsu.co.jp [192.51.44.36]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 906D82C008E for ; Fri, 30 Aug 2013 12:45:06 +1000 (EST) Received: from m4.gw.fujitsu.co.jp (unknown [10.0.50.74]) by fgwmail6.fujitsu.co.jp (Postfix) with ESMTP id E4EA43EE0C8 for ; Fri, 30 Aug 2013 11:45:03 +0900 (JST) Received: from smail (m4 [127.0.0.1]) by outgoing.m4.gw.fujitsu.co.jp (Postfix) with ESMTP id CFB2945DE59 for ; Fri, 30 Aug 2013 11:45:03 +0900 (JST) Received: from s4.gw.fujitsu.co.jp (s4.gw.fujitsu.co.jp [10.0.50.94]) by m4.gw.fujitsu.co.jp (Postfix) with ESMTP id 9A41F45DE57 for ; Fri, 30 Aug 2013 11:45:03 +0900 (JST) Received: from s4.gw.fujitsu.co.jp (localhost.localdomain [127.0.0.1]) by s4.gw.fujitsu.co.jp (Postfix) with ESMTP id 827D31DB8040 for ; Fri, 30 Aug 2013 11:45:03 +0900 (JST) Received: from g01jpfmpwyt02.exch.g01.fujitsu.local (g01jpfmpwyt02.exch.g01.fujitsu.local [10.128.193.56]) by s4.gw.fujitsu.co.jp (Postfix) with ESMTP id EDD4B1DB8041 for ; Fri, 30 Aug 2013 11:45:02 +0900 (JST) Message-ID: <522006F6.2060206@jp.fujitsu.com> Date: Fri, 30 Aug 2013 11:44:06 +0900 From: Yasuaki Ishimatsu MIME-Version: 1.0 To: Toshi Kani Subject: Re: [PATCH v2 0/4] Unify CPU hotplug lock interface References: <1377822129-4143-1-git-send-email-toshi.kani@hp.com> In-Reply-To: <1377822129-4143-1-git-send-email-toshi.kani@hp.com> Content-Type: text/plain; charset="ISO-2022-JP" Cc: fenghua.yu@intel.com, bp@suse.de, gregkh@linuxfoundation.org, x86@kernel.org, linux-kernel@vger.kernel.org, rjw@sisk.pl, linux-acpi@vger.kernel.org, mingo@redhat.com, srivatsa.bhat@linux.vnet.ibm.com, nfont@linux.vnet.ibm.com, tglx@linutronix.de, hpa@linux.intel.com, linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , (2013/08/30 9:22), Toshi Kani wrote: > lock_device_hotplug() was recently introduced to serialize CPU & Memory > online/offline and hotplug operations, along with sysfs online interface > restructure (commit 4f3549d7). With this new locking scheme, > cpu_hotplug_driver_lock() is redundant and is no longer necessary. > > This patchset makes sure that lock_device_hotplug() covers all CPU online/ > offline interfaces, and then removes cpu_hotplug_driver_lock(). > > v2: > - Rebased to the pm tree, bleeding-edge. > - Changed patch 2/4 to use lock_device_hotplug_sysfs(). > > --- > Toshi Kani (4): > hotplug, x86: Fix online state in cpu0 debug interface > hotplug, x86: Add hotplug lock to missing places > hotplug, x86: Disable ARCH_CPU_PROBE_RELEASE on x86 > hotplug, powerpc, x86: Remove cpu_hotplug_driver_lock() > > --- The patch-set looks good to me. Acked-by: Yasuaki Ishimatsu Thanks, Yasuaki Ishimatsu > arch/powerpc/kernel/smp.c | 12 ---------- > arch/powerpc/platforms/pseries/dlpar.c | 40 +++++++++++++--------------------- > arch/x86/Kconfig | 4 ---- > arch/x86/kernel/smpboot.c | 21 ------------------ > arch/x86/kernel/topology.c | 11 ++++++---- > drivers/base/cpu.c | 34 +++++++++++++++++++---------- > include/linux/cpu.h | 13 ----------- > 7 files changed, 45 insertions(+), 90 deletions(-) >