From: Frederic Weisbecker <frederic@kernel.org>
To: Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Frederic Weisbecker <frederic@kernel.org>,
Tony Luck <tony.luck@intel.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Michael Ellerman <mpe@ellerman.id.au>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Fenghua Yu <fenghua.yu@intel.com>,
Heiko Carstens <hca@linux.ibm.com>
Subject: [PATCH 0/5] irq: Reorder time handling against HARDIRQ_OFFSET on IRQ entry v3
Date: Wed, 2 Dec 2020 12:57:27 +0100 [thread overview]
Message-ID: <20201202115732.27827-1-frederic@kernel.org> (raw)
Slightly different design this time. As per Peter and Thomas reviews and
suggestions, use the following layout:
account_softirq_enter() -> irqtime_account_irq(curr, SOFTIRQ_OFFSET);
account_softirq_exit() -> irqtime_account_irq(curr, 0);
account_hardirq_enter() -> irqtime_account_irq(curr, HARDIRQ_OFFSET);
account_hardirq_exit() -> irqtime_account_irq(curr, 0);
So now the preempt count offset is substracted in the cputime dispatch
function and the resulting code is better consolidated.
git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks.git
irq/core-v3
HEAD: 24a2d6c76759bd4496cbdcd365012c821a984eec
Thanks,
Frederic
---
Frederic Weisbecker (5):
sched/cputime: Remove symbol exports from IRQ time accounting
s390/vtime: Use the generic IRQ entry accounting
sched/vtime: Consolidate IRQ time accounting
irqtime: Move irqtime entry accounting after irq offset incrementation
irq: Call tick_irq_enter() inside HARDIRQ_OFFSET
arch/Kconfig | 7 +++++-
arch/ia64/kernel/time.c | 20 ++++++++++++----
arch/powerpc/kernel/time.c | 56 ++++++++++++++++++++++++++++++-------------
arch/s390/Kconfig | 1 +
arch/s390/include/asm/vtime.h | 1 -
arch/s390/kernel/vtime.c | 51 +++++++++++++++++++++++++--------------
include/linux/hardirq.h | 4 ++--
include/linux/vtime.h | 42 +++++++++++++++++++-------------
kernel/sched/cputime.c | 36 +++++++++++++---------------
kernel/softirq.c | 20 +++++++---------
10 files changed, 148 insertions(+), 90 deletions(-)
next reply other threads:[~2020-12-02 11:58 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-02 11:57 Frederic Weisbecker [this message]
2020-12-02 11:57 ` [PATCH 1/5] sched/cputime: Remove symbol exports from IRQ time accounting Frederic Weisbecker
2020-12-02 19:23 ` [tip: irq/core] " tip-bot2 for Frederic Weisbecker
2020-12-02 19:28 ` [PATCH 1/5] " Christian Borntraeger
2020-12-02 11:57 ` [PATCH 2/5] s390/vtime: Use the generic IRQ entry accounting Frederic Weisbecker
2020-12-02 19:23 ` [tip: irq/core] " tip-bot2 for Frederic Weisbecker
2020-12-02 19:34 ` [PATCH 2/5] " Christian Borntraeger
2020-12-02 11:57 ` [PATCH 3/5] sched/vtime: Consolidate IRQ time accounting Frederic Weisbecker
2020-12-02 19:23 ` [tip: irq/core] " tip-bot2 for Frederic Weisbecker
2020-12-02 11:57 ` [PATCH 4/5] irqtime: Move irqtime entry accounting after irq offset incrementation Frederic Weisbecker
2020-12-02 12:36 ` Peter Zijlstra
2020-12-02 19:23 ` [tip: irq/core] " tip-bot2 for Frederic Weisbecker
2020-12-28 2:15 ` [PATCH 4/5] " Qais Yousef
2020-12-29 13:41 ` Frederic Weisbecker
2020-12-29 14:12 ` Qais Yousef
2020-12-29 14:30 ` Frederic Weisbecker
2020-12-29 15:58 ` Qais Yousef
2020-12-02 11:57 ` [PATCH 5/5] irq: Call tick_irq_enter() inside HARDIRQ_OFFSET Frederic Weisbecker
2020-12-02 19:23 ` [tip: irq/core] " tip-bot2 for Frederic Weisbecker
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