From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from g1t0027.austin.hp.com (g1t0027.austin.hp.com [15.216.28.34]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "smtp.hp.com", Issuer "VeriSign Class 3 Secure Server CA - G3" (not verified)) by ozlabs.org (Postfix) with ESMTPS id B44A32C00FE for ; Fri, 30 Aug 2013 10:24:02 +1000 (EST) From: Toshi Kani To: rjw@sisk.pl Subject: [PATCH v2 0/4] Unify CPU hotplug lock interface Date: Thu, 29 Aug 2013 18:22:05 -0600 Message-Id: <1377822129-4143-1-git-send-email-toshi.kani@hp.com> Cc: fenghua.yu@intel.com, bp@suse.de, Toshi Kani , gregkh@linuxfoundation.org, x86@kernel.org, linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org, isimatu.yasuaki@jp.fujitsu.com, 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: , 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() --- 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(-)