| From: |
| Frederic Weisbecker <fweisbec@gmail.com> |
| To: |
| LKML <linux-kernel@vger.kernel.org> |
| Subject: |
| [PATCH 0/6] nohz: Move nohz kick out of scheduler IPI, v8 |
| Date: |
| Tue, 10 Jun 2014 17:15:03 +0200 |
| Message-ID: |
| <1402413309-3415-1-git-send-email-fweisbec@gmail.com> |
| Cc: |
| Frederic Weisbecker <fweisbec@gmail.com>, Peter Zijlstra <peterz@infradead.org>, Andrew Morton <akpm@linux-foundation.org>, Ingo Molnar <mingo@kernel.org>, Kevin Hilman <khilman@linaro.org>, "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>, Thomas Gleixner <tglx@linutronix.de>, Viresh Kumar <viresh.kumar@linaro.org>, Eric Dumazet <eric.dumazet@gmail.com> |
| Archive‑link: | |
Article |
So this set happens to have more changes than expected because I
found out that the timer list full nohz kick also relies on the scheduler
IPI. So I had to convert it as well, hence a few more change splitups.
Changes:
* Check also raised lists from irq_work_needs_cpu() (thanks Peterz)
* Comment on SMP functions priority in
generic_smp_call_function_single_interrupt() because IPI callbacks there
are often synchronous as opposed to irq works. (thanks Peterz)
* s/native_send_call_func_single_ipi/native_send_call_func_single_ipi
(thanks Eric Dumazet)
* Only build irq_work_queue_on() on CONFIG_SMP, fixes some broken builds
* Convert full nohz timer list kick
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
timers/nohz-irq-work-v6
Thanks,
Frederic
---
Frederic Weisbecker (6):
irq_work: Split raised and lazy lists
irq_work: Implement remote queueing
nohz: Support nohz full remote kick
nohz: Switch to nohz full remote kick on timer enqueue
nohz: Use nohz own full kick on 2nd task enqueue
nohz: Use IPI implicit full barrier against rq->nr_running r/w
include/linux/irq_work.h | 5 ++++
include/linux/tick.h | 9 +++++-
kernel/irq_work.c | 76 ++++++++++++++++++++++++++++++------------------
kernel/sched/core.c | 22 ++++++++------
kernel/sched/sched.h | 12 ++++++--
kernel/smp.c | 9 ++++++
kernel/time/tick-sched.c | 10 ++++---
7 files changed, 97 insertions(+), 46 deletions(-)
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