[RFC GIT PULL] nohz: Full dynticks rq clock handling

From: Frederic Weisbecker
Date: Sat Apr 06 2013 - 12:46:13 EST


Hi,

So this is the part that handles the rq clock on full dynticks CPUs.
May be some of the update_nohz_rq_clock() calls here could even
apply to mainline for dynticks idle CPUs.

There are still two known places I need to look into for which I had patches
in my nohz tree but I need to have a deeper look into these (make the patch
saner, check if the problem should be fixed in mainline instead, etc...):

* http://git.kernel.org/cgit/linux/kernel/git/frederic/linux-dynticks.git/commit/?h=3.9-rc1-nohz1&id=36ca34d0d4ba0a9589cf3054a7df9f0879ddd6c5
* http://git.kernel.org/cgit/linux/kernel/git/frederic/linux-dynticks.git/commit/?h=3.9-rc1-nohz1&id=9c3af3b4104682217b1f602acb4efbab563ccf59

But otherwise this patchset handles the big bulk of rq clock handling.

This can be pulled from:

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
timers/nohz-rqclock

Thanks.

---
Frederic Weisbecker (7):
sched: Update rq clock on nohz CPU before migrating tasks
sched: Update rq clock on nohz CPU before setting fair group shares
sched: Update rq clock on tickless CPUs before calling
check_preempt_curr()
sched: Update rq clock earlier in unthrottle_cfs_rq
sched: Update rq clock before idle balancing
sched: Use an accessor to read rq clock
sched: Debug nohz rq clock

kernel/sched/core.c | 30 +++++++++++++++++++++---
kernel/sched/fair.c | 55 ++++++++++++++++++++++++++--------------------
kernel/sched/rt.c | 8 +++---
kernel/sched/sched.h | 47 +++++++++++++++++++++++++++++++++++++++
kernel/sched/stats.h | 8 +++---
kernel/sched/stop_task.c | 8 +++---
lib/Kconfig.debug | 11 +++++++++
7 files changed, 127 insertions(+), 40 deletions(-)

--
1.7.5.4

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