From: Nicholas Piggin <npiggin@gmail.com> To: Thomas Gleixner <tglx@linutronix.de>, Frederic Weisbecker <fweisbec@gmail.com> Cc: Nicholas Piggin <npiggin@gmail.com>, Ingo Molnar <mingo@redhat.com>, Peter Zijlstra <peterz@infradead.org>, "Rafael J . Wysocki" <rafael.j.wysocki@intel.com>, linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v2 0/5] Allow CPU0 to be nohz full Date: Thu, 11 Apr 2019 13:34:43 +1000 [thread overview] Message-ID: <20190411033448.20842-1-npiggin@gmail.com> (raw) Since last time, I added a compile time option to opt-out of this if the platform does not support suspend on non-zero, and tried to improve legibility of changelogs and explain the justification better. I have been testing this on powerpc/pseries and it seems to work fine (the firmware call to suspend can be called on any CPU and resumes where it left off), but not included here because the code has some bitrot unrelated to this series which I hacked to fix. I will discuss it and either send an acked patch to go with this series if it is small, or fix it in powerpc tree. Thanks, Nick Nicholas Piggin (5): sched/core: allow the remote scheduler tick to be started on CPU0 PM / suspend: add function to disable secondaries for suspend kernel/cpu: Allow non-zero CPU to be primary for suspend / kexec freeze kernel/sched/isolation: require a present CPU in housekeeping mask nohz_full: Allow the boot CPU to be nohz_full include/linux/cpu.h | 15 ++++++++++++ kernel/cpu.c | 10 +++++++- kernel/kexec_core.c | 4 ++-- kernel/power/Kconfig | 9 +++++++ kernel/power/hibernate.c | 12 +++++----- kernel/power/suspend.c | 4 ++-- kernel/sched/core.c | 2 +- kernel/sched/isolation.c | 18 ++++++++++---- kernel/time/tick-common.c | 50 +++++++++++++++++++++++++++++++++++---- kernel/time/tick-sched.c | 34 ++++++++++++++++++-------- 11 files changed, 131 insertions(+), 31 deletions(-) -- 2.20.1
WARNING: multiple messages have this Message-ID (diff)
From: Nicholas Piggin <npiggin@gmail.com> To: Thomas Gleixner <tglx@linutronix.de>, Frederic Weisbecker <fweisbec@gmail.com> Cc: linux-arch@vger.kernel.org, Peter Zijlstra <peterz@infradead.org>, "Rafael J . Wysocki" <rafael.j.wysocki@intel.com>, linux-kernel@vger.kernel.org, Nicholas Piggin <npiggin@gmail.com>, Ingo Molnar <mingo@redhat.com>, linuxppc-dev@lists.ozlabs.org Subject: [PATCH v2 0/5] Allow CPU0 to be nohz full Date: Thu, 11 Apr 2019 13:34:43 +1000 [thread overview] Message-ID: <20190411033448.20842-1-npiggin@gmail.com> (raw) Since last time, I added a compile time option to opt-out of this if the platform does not support suspend on non-zero, and tried to improve legibility of changelogs and explain the justification better. I have been testing this on powerpc/pseries and it seems to work fine (the firmware call to suspend can be called on any CPU and resumes where it left off), but not included here because the code has some bitrot unrelated to this series which I hacked to fix. I will discuss it and either send an acked patch to go with this series if it is small, or fix it in powerpc tree. Thanks, Nick Nicholas Piggin (5): sched/core: allow the remote scheduler tick to be started on CPU0 PM / suspend: add function to disable secondaries for suspend kernel/cpu: Allow non-zero CPU to be primary for suspend / kexec freeze kernel/sched/isolation: require a present CPU in housekeeping mask nohz_full: Allow the boot CPU to be nohz_full include/linux/cpu.h | 15 ++++++++++++ kernel/cpu.c | 10 +++++++- kernel/kexec_core.c | 4 ++-- kernel/power/Kconfig | 9 +++++++ kernel/power/hibernate.c | 12 +++++----- kernel/power/suspend.c | 4 ++-- kernel/sched/core.c | 2 +- kernel/sched/isolation.c | 18 ++++++++++---- kernel/time/tick-common.c | 50 +++++++++++++++++++++++++++++++++++---- kernel/time/tick-sched.c | 34 ++++++++++++++++++-------- 11 files changed, 131 insertions(+), 31 deletions(-) -- 2.20.1
next reply other threads:[~2019-04-11 3:35 UTC|newest] Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-04-11 3:34 Nicholas Piggin [this message] 2019-04-11 3:34 ` [PATCH v2 0/5] Allow CPU0 to be nohz full Nicholas Piggin 2019-04-11 3:34 ` [PATCH v2 1/5] sched/core: allow the remote scheduler tick to be started on CPU0 Nicholas Piggin 2019-04-11 3:34 ` Nicholas Piggin 2019-05-03 11:28 ` [tip:sched/core] sched/core: Allow " tip-bot for Nicholas Piggin 2019-04-11 3:34 ` [PATCH v2 2/5] PM / suspend: add function to disable secondaries for suspend Nicholas Piggin 2019-04-11 3:34 ` Nicholas Piggin 2019-05-03 11:29 ` [tip:sched/core] power/suspend: Add " tip-bot for Nicholas Piggin 2019-05-03 17:46 ` tip-bot for Nicholas Piggin 2019-04-11 3:34 ` [PATCH v2 3/5] kernel/cpu: Allow non-zero CPU to be primary for suspend / kexec freeze Nicholas Piggin 2019-04-11 3:34 ` Nicholas Piggin 2019-04-25 12:02 ` Peter Zijlstra 2019-04-25 12:02 ` Peter Zijlstra 2019-04-26 4:32 ` Nicholas Piggin 2019-04-26 4:32 ` Nicholas Piggin 2019-05-03 11:29 ` [tip:sched/core] " tip-bot for Nicholas Piggin 2019-05-03 17:46 ` tip-bot for Nicholas Piggin 2019-04-11 3:34 ` [PATCH v2 4/5] kernel/sched/isolation: require a present CPU in housekeeping mask Nicholas Piggin 2019-04-11 3:34 ` Nicholas Piggin 2019-05-03 11:30 ` [tip:sched/core] sched/isolation: Require " tip-bot for Nicholas Piggin 2019-05-03 17:47 ` tip-bot for Nicholas Piggin 2019-05-03 23:52 ` Frederic Weisbecker 2019-05-04 0:27 ` Frederic Weisbecker 2019-05-04 6:59 ` Nicholas Piggin 2019-05-06 15:16 ` Frederic Weisbecker 2019-05-06 23:50 ` Nicholas Piggin 2019-05-08 0:35 ` Frederic Weisbecker 2019-05-08 1:38 ` Nicholas Piggin 2019-04-11 3:34 ` [PATCH v2 5/5] nohz_full: Allow the boot CPU to be nohz_full Nicholas Piggin 2019-04-11 3:34 ` Nicholas Piggin 2019-05-03 11:31 ` [tip:sched/core] " tip-bot for Nicholas Piggin 2019-05-03 17:48 ` tip-bot for Nicholas Piggin 2019-04-25 12:04 ` [PATCH v2 0/5] Allow CPU0 to be nohz full Peter Zijlstra 2019-04-25 12:04 ` Peter Zijlstra 2019-04-30 2:46 ` Nicholas Piggin 2019-04-30 2:46 ` Nicholas Piggin 2019-04-30 12:07 ` Peter Zijlstra 2019-04-30 12:07 ` Peter Zijlstra
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