From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752609Ab0DVQKd (ORCPT ); Thu, 22 Apr 2010 12:10:33 -0400 Received: from hera.kernel.org ([140.211.167.34]:35468 "EHLO hera.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751240Ab0DVQKb (ORCPT ); Thu, 22 Apr 2010 12:10:31 -0400 From: Tejun Heo To: mingo@elte.hu, linux-kernel@vger.kernel.org, x86@kernel.org, oleg@redhat.com, peterz@infradead.org, rusty@rustcorp.com.au, sivanich@sgi.com, heiko.carstens@de.ibm.com, dipankar@in.ibm.com, josh@freedesktop.org, paulmck@linux.vnet.ibm.com, akpm@linux-foundation.org, arjan@linux.intel.com, torvalds@linux-foundation.org Subject: [PATCHSET sched/core] cpu_stop: implement and use cpu_stop Date: Thu, 22 Apr 2010 18:09:10 +0200 Message-Id: <1271952554-22368-1-git-send-email-tj@kernel.org> X-Mailer: git-send-email 1.6.4.2 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.2.3 (hera.kernel.org [127.0.0.1]); Thu, 22 Apr 2010 16:09:23 +0000 (UTC) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, all. cpu_hog has been renamed to cpu_stop and moved into kernel/stop_machine.c per Peter Zijlstra's suggestion. This patchset is feature-wise identical to the second take of cpuhog[L]. The only changes are the rename, relocation and refresh against the current sched/core. The following API renames took place. - hog_one_cpu() -> stop_one_cpu() - hog_one_cpu_nowait() -> stop_one_cpu_nowait() - hog_cpus() -> stop_cpus() - try_hog_cpus() -> try_stop_cpus() - *_hog() callbacks -> *_cpu_stop() Internal names have been renamed accordingly. e.g. cpuhog thread became cpu_stopper thread and so on. This patchset contains the following four patches. 0001-cpu_stop-implement-stop_cpu-s.patch 0002-stop_machine-reimplement-using-cpu_stop.patch 0003-scheduler-replace-migration_thread-with-cpu_stop.patch 0004-scheduler-kill-paranoia-check-in-synchronize_sched_e.patch The patches are against the current linux-2.6-tip/sched/core (09a40af5240de02d848247ab82440ad75b31ab11) and are available in the following git tree. git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc.git cpu_stop I retained the original acked/reviewed-by's as the changes are mostly cosmetic. If you disagree, please let me know. I'll try to push this through sched/core again once Peter acks. diffstat follows. Documentation/RCU/torture.txt | 10 arch/s390/kernel/time.c | 1 drivers/xen/manage.c | 14 - include/linux/rcutiny.h | 2 include/linux/rcutree.h | 1 include/linux/stop_machine.h | 59 ++-- kernel/cpu.c | 8 kernel/module.c | 14 - kernel/rcutorture.c | 2 kernel/sched.c | 271 +++------------------ kernel/sched_fair.c | 42 ++- kernel/stop_machine.c | 525 ++++++++++++++++++++++++++++++++---------- 12 files changed, 514 insertions(+), 435 deletions(-) Thanks. -- tejun [L] http://thread.gmane.org/gmane.linux.kernel/962635