diff options
| author | Thierry Strudel <tstrudel@google.com> | 2016-06-14 17:46:44 -0700 |
|---|---|---|
| committer | Mark Salyzyn <salyzyn@google.com> | 2016-06-21 12:58:10 -0700 |
| commit | 872e24621a63b75b3b644f6369b04bfb092264b1 (patch) | |
| tree | a0032276646168fe50c8a33909da005726dd9097 | |
| parent | ab4f14dd052ba453558a8913d8d5547abbfc7b88 (diff) | |
ANDROID: cpu: send KOBJ_ONLINE event when enabling cpus
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.
Signed-off-by: Thierry Strudel <tstrudel@google.com>
Bug: 29359497
Change-Id: I0395c86e01cd49c348fda8f93087d26f88557c91
| -rw-r--r-- | kernel/cpu.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index 37731292f8a1..9ced7c751648 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -627,6 +627,7 @@ 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(); @@ -644,6 +645,12 @@ 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); |