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| author | Steve Muckle <smuckle@codeaurora.org> | 2013-03-11 16:33:42 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-23 19:58:33 -0700 |
| commit | 63249df6b26afebf6ad1b7b7385182c125c88477 (patch) | |
| tree | 3d66f10ff0ff30ee6cea1361c7308ff66dc33ecc /kernel/sched/debug.c | |
| parent | 82f6fb4f5c85f3842a65b15142ecd8378893dac4 (diff) | |
sched: provide per cpu-cgroup option to notify on migrations
On systems where CPUs may run asynchronously, task migrations
between CPUs running at grossly different speeds can cause
problems.
This change provides a mechanism to notify a subsystem
in the kernel if a task in a particular cgroup migrates to a
different CPU. Other subsystems (such as cpufreq) may then
register for this notifier to take appropriate action when
such a task is migrated.
The cgroup attribute to set for this behavior is
"notify_on_migrate" .
Change-Id: Ie1868249e53ef901b89c837fdc33b0ad0c0a4590
Signed-off-by: Steve Muckle <smuckle@codeaurora.org>
[rameezmustafa@codeaurora.org: Use new cgroup APIs, fix 64-bit
compilation issues and resolve some merge
conflicts. Also squash "2bd8075 sched:
remove migration notification from RT class"
into this patch.]
Signed-off-by: Syed Rameez Mustafa <rameezmustafa@codeaurora.org>
[joonwoop@codeaurora.org: Incorporated with new __migrate_task().]
Signed-off-by: Joonwoo Park <joonwoop@codeaurora.org>
Diffstat (limited to 'kernel/sched/debug.c')
0 files changed, 0 insertions, 0 deletions