xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Browse Source 
Pull smp hotplug updates from Thomas Gleixner:
 "This is the next part of the hotplug rework.

   - Convert all notifiers with a priority assigned

   - Convert all CPU_STARTING/DYING notifiers

     The final removal of the STARTING/DYING infrastructure will happen
     when the merge window closes.

  Another 700 hundred line of unpenetrable maze gone :)"

* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits)
  timers/core: Correct callback order during CPU hot plug
  leds/trigger/cpu: Move from CPU_STARTING to ONLINE level
  powerpc/numa: Convert to hotplug state machine
  arm/perf: Fix hotplug state machine conversion
  irqchip/armada: Avoid unused function warnings
  ARC/time: Convert to hotplug state machine
  clocksource/atlas7: Convert to hotplug state machine
  clocksource/armada-370-xp: Convert to hotplug state machine
  clocksource/exynos_mct: Convert to hotplug state machine
  clocksource/arm_global_timer: Convert to hotplug state machine
  rcu: Convert rcutree to hotplug state machine
  KVM/arm/arm64/vgic-new: Convert to hotplug state machine
  smp/cfd: Convert core to hotplug state machine
  x86/x2apic: Convert to CPU hotplug state machine
  profile: Convert to hotplug state machine
  timers/core: Convert to hotplug state machine
  hrtimer: Convert to hotplug state machine
  x86/tboot: Convert to hotplug state machine
  arm64/armv8 deprecated: Convert to hotplug state machine
  hwtracing/coresight-etm4x: Convert to hotplug state machine
  ...
This commit is contained in:
Linus Torvalds
2016-07-29 13:55:30 -07:00
parent 1a81a8f2a5 4fae16dffb
commit a6408f6cb6
75 changed files with 1321 additions and 2018 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
drivers/leds/trigger/ledtrig-cpu.c
View File

@@ -92,29 +92,22 @@ static struct syscore_ops ledtrig_cpu_syscore_ops = {
.resume = ledtrig_cpu_syscore_resume,
};
static int ledtrig_cpu_notify(struct notifier_block *self,
unsigned long action, void *hcpu)
static int ledtrig_online_cpu(unsigned int cpu)
{
switch (action & ~CPU_TASKS_FROZEN) {
case CPU_STARTING:
ledtrig_cpu(CPU_LED_START);
break;
case CPU_DYING:
ledtrig_cpu(CPU_LED_STOP);
break;
}
return NOTIFY_OK;
ledtrig_cpu(CPU_LED_START);
return 0;
}
static struct notifier_block ledtrig_cpu_nb = {
.notifier_call = ledtrig_cpu_notify,
};
static int ledtrig_prepare_down_cpu(unsigned int cpu)
{
ledtrig_cpu(CPU_LED_STOP);
return 0;
}
static int __init ledtrig_cpu_init(void)
{
int cpu;
int ret;
/* Supports up to 9999 cpu cores */
BUILD_BUG_ON(CONFIG_NR_CPUS > 9999);
@@ -133,7 +126,12 @@ static int __init ledtrig_cpu_init(void)
}
register_syscore_ops(&ledtrig_cpu_syscore_ops);
register_cpu_notifier(&ledtrig_cpu_nb);
ret = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "AP_LEDTRIG_STARTING",
ledtrig_online_cpu, ledtrig_prepare_down_cpu);
if (ret < 0)
pr_err("CPU hotplug notifier for ledtrig-cpu could not be registered: %d\n",
ret);
pr_info("ledtrig-cpu: registered to indicate activity on CPUs\n");