From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from g5t0007.atlanta.hp.com (g5t0007.atlanta.hp.com [15.192.0.44]) (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 E12E52C0114 for ; Sun, 18 Aug 2013 05:58:29 +1000 (EST) From: Toshi Kani To: mingo@redhat.com, hpa@linux.intel.com, tglx@linutronix.de, gregkh@linuxfoundation.org, benh@kernel.crashing.org Subject: [PATCH 0/4] Unify CPU hotplug lock interface Date: Sat, 17 Aug 2013 13:46:55 -0600 Message-Id: <1376768819-28975-1-git-send-email-toshi.kani@hp.com> Cc: fenghua.yu@intel.com, Toshi Kani , x86@kernel.org, linux-kernel@vger.kernel.org, rjw@sisk.pl, isimatu.yasuaki@jp.fujitsu.com, srivatsa.bhat@linux.vnet.ibm.com, bp@suse.de, 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(). The patchset is based on Linus's tree, 3.11.0-rc5. --- 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 | 26 ++++++++++++---------- include/linux/cpu.h | 13 ----------- 7 files changed, 37 insertions(+), 90 deletions(-)