From: Frederic Weisbecker <fweisbec@gmail.com>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>,
Peter Zijlstra <peterz@infradead.org>,
Dave Jones <davej@redhat.com>,
Thomas Gleixner <tglx@linutronix.de>,
Russell King <linux@arm.linux.org.uk>,
Catalin Iacob <iacobcatalin@gmail.com>,
"Paul E . McKenney" <paulmck@linux.vnet.ibm.com>,
Will Deacon <will.deacon@arm.com>, Ingo Molnar <mingo@kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>
Subject: [PATCH 0/8] nohz: Fix nohz kick irq work on tick v2
Date: Wed, 10 Sep 2014 23:33:20 +0200 [thread overview]
Message-ID: <1410384808-14760-1-git-send-email-fweisbec@gmail.com> (raw)
Hi,
The nohz kick uses irq work to restart the tick but it relies on irq
work to run on its own IPI. Otherwise the kick runs on the tick and
bad things happen when it tries to cancel the tick hrtimer from itself.
That 2nd version addresses Peterz review.
Note I only tested x86. Just waiting for general agreement before testing
more seriously.
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
nohz/fixes-v2
HEAD: 863bea6acd4c9151f9be2fa623e8fee588d4e58c
Thanks,
Frederic
---
Frederic Weisbecker (7):
nohz: Move nohz full init call to tick init
irq_work: Force raised irq work to run on irq work interrupt
x86: Tell irq work about self IPI support
arm: Tell irq work about self IPI support
arm64: Tell irq work about self IPI support
nohz: Consolidate nohz full init code
nohz: nohz full depends on irq work self IPI support
Peter Zijlstra (1):
irq_work: Introduce arch_irq_work_has_interrupt()
arch/alpha/include/asm/Kbuild | 1 +
arch/arc/include/asm/Kbuild | 1 +
arch/arm/include/asm/irq_work.h | 11 ++++++++
arch/arm/kernel/smp.c | 2 +-
arch/arm64/include/asm/Kbuild | 2 +-
arch/arm64/include/asm/irq_work.h | 11 ++++++++
arch/arm64/include/asm/smp.h | 2 ++
arch/arm64/kernel/smp.c | 2 +-
arch/avr32/include/asm/Kbuild | 1 +
arch/blackfin/include/asm/Kbuild | 1 +
arch/c6x/include/asm/Kbuild | 1 +
arch/cris/include/asm/Kbuild | 1 +
arch/frv/include/asm/Kbuild | 1 +
arch/hexagon/include/asm/Kbuild | 1 +
arch/ia64/include/asm/Kbuild | 1 +
arch/m32r/include/asm/Kbuild | 1 +
arch/m68k/include/asm/Kbuild | 1 +
arch/metag/include/asm/Kbuild | 1 +
arch/microblaze/include/asm/Kbuild | 1 +
arch/mips/include/asm/Kbuild | 1 +
arch/mn10300/include/asm/Kbuild | 1 +
arch/openrisc/include/asm/Kbuild | 1 +
arch/parisc/include/asm/Kbuild | 1 +
arch/powerpc/include/asm/Kbuild | 1 +
arch/s390/include/asm/Kbuild | 1 +
arch/score/include/asm/Kbuild | 1 +
arch/sh/include/asm/Kbuild | 1 +
arch/sparc/include/asm/Kbuild | 1 +
arch/tile/include/asm/Kbuild | 1 +
arch/um/include/asm/Kbuild | 1 +
arch/unicore32/include/asm/Kbuild | 1 +
arch/x86/include/asm/irq_work.h | 11 ++++++++
arch/x86/kernel/irq_work.c | 2 +-
arch/xtensa/include/asm/Kbuild | 1 +
include/asm-generic/irq_work.h | 10 ++++++++
include/linux/irq_work.h | 3 +++
include/linux/tick.h | 2 --
init/main.c | 1 -
kernel/irq_work.c | 13 ++++++++--
kernel/time/tick-common.c | 1 +
kernel/time/tick-internal.h | 7 +++++
kernel/time/tick-sched.c | 52 ++++++++++++++++++++++++--------------
kernel/time/timer.c | 2 +-
43 files changed, 131 insertions(+), 29 deletions(-)
next reply other threads:[~2014-09-10 21:33 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-09-10 21:33 Frederic Weisbecker [this message]
2014-09-10 21:33 ` [PATCH 1/8] nohz: Move nohz full init call to tick init Frederic Weisbecker
2014-09-10 21:33 ` [PATCH 2/8] irq_work: Introduce arch_irq_work_has_interrupt() Frederic Weisbecker
2014-09-10 21:33 ` [PATCH 3/8] irq_work: Force raised irq work to run on irq work interrupt Frederic Weisbecker
2014-09-10 21:33 ` [PATCH 4/8] x86: Tell irq work about self IPI support Frederic Weisbecker
2014-09-10 21:33 ` [PATCH 5/8] arm: " Frederic Weisbecker
2014-09-10 21:33 ` [PATCH 6/8] arm64: " Frederic Weisbecker
2014-09-11 9:00 ` Catalin Marinas
2014-09-13 16:47 ` Frederic Weisbecker
2014-09-10 21:33 ` [PATCH 7/8] nohz: Consolidate nohz full init code Frederic Weisbecker
2014-09-10 21:33 ` [PATCH 8/8] nohz: nohz full depends on irq work self IPI support Frederic Weisbecker
2014-09-11 8:28 ` [PATCH 0/8] nohz: Fix nohz kick irq work on tick v2 Peter Zijlstra
2014-09-12 18:05 ` Frederic Weisbecker
2014-09-12 19:00 ` Peter Zijlstra
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