linux-kernel - [PATCHSET sched/core] cpu_stop: implement and use cpu

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1271952554-22368-1-git-send-email-tj@kernel.org>
Date:	Thu, 22 Apr 2010 18:09:10 +0200
From:	Tejun Heo <tj@...nel.org>
To:	mingo@...e.hu, linux-kernel@...r.kernel.org, x86@...nel.org,
	oleg@...hat.com, peterz@...radead.org, rusty@...tcorp.com.au,
	sivanich@....com, heiko.carstens@...ibm.com, dipankar@...ibm.com,
	josh@...edesktop.org, paulmck@...ux.vnet.ibm.com,
	akpm@...ux-foundation.org, arjan@...ux.intel.com,
	torvalds@...ux-foundation.org
Subject: [PATCHSET sched/core] cpu_stop: implement and use cpu_stop

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
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/