android/android_kernel_asus_sm8350
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ANDROID: cpu: send KOBJ_ONLINE event when enabling cpus

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In case some sysfs nodes needs to be labeled with a different label than
sysfs then user needs to be notified when a core is brought back online.

Bug: 29359497
Bug: 120444461
Change-Id: I0395c86e01cd49c348fda8f93087d26f88557c91
Signed-off-by: Thierry Strudel <tstrudel@google.com>
This commit is contained in:
Thierry Strudel 2016-06-14 17:46:44 -07:00 committed by Todd Kjos
parent f2fe7bac26
commit e6120dd58d
1 changed files with 7 additions and 0 deletions
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7
kernel/cpu.c
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@ -1211,6 +1211,7 @@ void __weak arch_enable_nonboot_cpus_end(void)
void enable_nonboot_cpus(void)
{
int cpu, error;
struct device *cpu_device;
/* Allow everyone to use the CPU hotplug again */
cpu_maps_update_begin();
@ -1228,6 +1229,12 @@ void enable_nonboot_cpus(void)
trace_suspend_resume(TPS("CPU_ON"), cpu, false);
if (!error) {
pr_info("CPU%d is up\n", cpu);
cpu_device = get_cpu_device(cpu);
if (!cpu_device)
pr_err("%s: failed to get cpu%d device\n",
__func__, cpu);
else
kobject_uevent(&cpu_device->kobj, KOBJ_ONLINE);
continue;
}
pr_warn("Error taking CPU%d up: %d\n", cpu, error);