[RFC PATCH 0/5] nohz: Move nohz kick out of scheduler IPI, v4

Frederic Weisbecker
2014-05-13T14:38:49Z

So this version now implements remote irq works using the generic IPI
interrupt available in most archs, as suggested by Peterz.

Keep in mind that the first patch is really just a draft to build the
mockup. It needs to be turned into an internal state set on boot or so.

git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
timers/nohz-irq-work-v2

Thanks,
Frederic
---

Frederic Weisbecker (5):
irq_work: Let arch tell us if it can raise irq work
irq_work: Force non-lazy works to the IPI
irq_work: Allow remote queueing
nohz: Move full nohz kick to its own IPI
nohz: Use IPI implicit full barrier against rq->nr_running r/w

arch/alpha/kernel/time.c | 5 +++
arch/arm/kernel/smp.c | 5 +++
arch/powerpc/kernel/time.c | 5 +++
arch/sparc/kernel/pcr.c | 5 +++
arch/x86/kernel/irq_work.c | 7 ++++
include/linux/irq_work.h | 3 ++
include/linux/tick.h | 9 ++++-
kernel/irq_work.c | 83 +++++++++++++++++++++++++++++++---------------
kernel/sched/core.c | 14 ++++----
kernel/sched/sched.h | 12 +++++--
kernel/smp.c | 3 ++
kernel/time/tick-sched.c | 10 +++---
kernel/timer.c | 2 +-
13 files changed, 119 insertions(+), 44 deletions(-)