Mathieu Poirier 2a68d1e912 HMP: Avoid using the cpu stopper to stop runnable tasks ...

When migrating a runnable task, we use the CPU stopper on
the source CPU to ensure that the task to be moved is not
currently running. Before this patch, all forced migrations
(up, offload, idle pull) use the stopper for every migration.

Using the CPU stopper is mandatory only when a task is currently
running on a CPU.  Otherwise tasks can be moved by locking the
source and destination run queues.

This patch checks to see if the task to be moved are currently
running.  If not the task is moved directly without using the
stopper thread.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Jon Medhurst <tixy@linaro.org>

2013-11-21 11:26:08 +00:00

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acpi

ACPI / dock / PCI: Synchronous handling of dock events for PCI devices

2013-06-24 11:22:53 +02:00

asm-generic

Merge branch 'fixes' of git://git.kernel.org/pub/scm/virt/kvm/kvm

2013-06-11 11:16:43 -07:00

clocksource

Merge tag 'multiplatform-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2013-05-07 11:28:42 -07:00

crypto

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drm

Merge branch 'drm-radeon-sun-hainan' of git://people.freedesktop.org/~airlied/linux

2013-05-21 08:50:57 -07:00

dt-bindings

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keys

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linux

sched: Ignore offline CPUs in HMP migration & load stats

2013-07-17 11:12:26 +01:00

math-emu

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media

Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2013-06-18 06:25:08 -10:00

memory

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misc

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net

ip_tunnel: remove __net_init/exit from exported functions

2013-06-13 03:00:59 -07:00

pcmcia

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ras

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rdma

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rxrpc

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scsi

Merge branch 'postmerge' into for-linus

2013-05-10 07:54:01 -07:00

sound

ASoC: dapm: Treat DAI widgets like AIF widgets for power

2013-06-07 15:54:50 +01:00

target

target: Propigate up ->cmd_kref put return via transport_generic_free_cmd

2013-05-31 01:21:23 -07:00

trace

HMP: Avoid using the cpu stopper to stop runnable tasks

2013-11-21 11:26:08 +00:00

uapi

netlink: export netlink_diag.h header

2013-06-19 18:30:27 -07:00

video

Merge branch 'fbdev-3.10-fixes' of git://gitorious.org/linux-omap-dss2/linux into linux-fbdev/for-3.10-fixes

2013-05-29 17:00:34 +08:00

xen

xenbus: delay xenbus frontend resume if xenstored is not running

2013-05-29 09:04:19 -04:00

Kbuild

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