diff options
| author |   Rodrigo Vivi <rodrigo.vivi@intel.com> | 2020-02-25 09:29:58 -0800 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2020-02-25 09:39:23 -0800 |
| commit | ff36e78fdb251b9fa65028554689806961e011eb (patch) | |
| tree | f5af925d509224e06a10936196be6c06bcbdc6ae /kernel/cpu.c | |
| parent | drm/i915: Drop assertion that active->fence is unchanged (diff) | |
| parent | Merge tag 'drm-misc-next-2020-02-10' of git://anongit.freedesktop.org/drm/drm-misc into drm-next (diff) | |
| download | linux-dev-ff36e78fdb251b9fa65028554689806961e011eb.tar.xz linux-dev-ff36e78fdb251b9fa65028554689806961e011eb.zip | |
Merge drm/drm-next into drm-intel-next-queued
Some DSI and VBT pending patches from Hans will apply
cleanly and with less ugly conflicts if they are rebuilt
on top of other patches that recently landed on drm-next.
Reference: https://patchwork.freedesktop.org/series/70952/
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com
Diffstat (limited to 'kernel/cpu.c')
| -rw-r--r-- | kernel/cpu.c | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index 4dc279ed3b2d..9c706af713fb 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -525,8 +525,7 @@ static int bringup_wait_for_ap(unsigned int cpu) if (WARN_ON_ONCE((!cpu_online(cpu)))) return -ECANCELED; - /* Unpark the stopper thread and the hotplug thread of the target cpu */ - stop_machine_unpark(cpu); + /* Unpark the hotplug thread of the target cpu */ kthread_unpark(st->thread); /* @@ -1089,8 +1088,8 @@ void notify_cpu_starting(unsigned int cpu) /* * Called from the idle task. Wake up the controlling task which brings the - * stopper and the hotplug thread of the upcoming CPU up and then delegates - * the rest of the online bringup to the hotplug thread. + * hotplug thread of the upcoming CPU up and then delegates the rest of the + * online bringup to the hotplug thread. */ void cpuhp_online_idle(enum cpuhp_state state) { @@ -1100,6 +1099,12 @@ void cpuhp_online_idle(enum cpuhp_state state) if (state != CPUHP_AP_ONLINE_IDLE) return; + /* + * Unpart the stopper thread before we start the idle loop (and start + * scheduling); this ensures the stopper task is always available. + */ + stop_machine_unpark(smp_processor_id()); + st->state = CPUHP_AP_ONLINE_IDLE; complete_ap_thread(st, true); } |