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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-07-30 11:27:01 +0200 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2018-07-30 11:27:01 +0200 |
| commit | 5a4c996764da496afcc470a6e13dc23a8f55aca8 (patch) | |
| tree | 3a4072147bcb22100ddad6c537aa8a890f32daf4 /kernel | |
| parent | cpufreq: qcom-kryo: add NULL entry to the end of_device_id array (diff) | |
| parent | cpufreq: Fix a circular lock dependency problem (diff) | |
| download | linux-5a4c996764da496afcc470a6e13dc23a8f55aca8.tar.xz linux-5a4c996764da496afcc470a6e13dc23a8f55aca8.zip | |
Merge back cpufreq material for 4.19.
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/cpu.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index 0db8938fbb23..307486baa477 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -290,6 +290,12 @@ void cpus_read_lock(void) } EXPORT_SYMBOL_GPL(cpus_read_lock); +int cpus_read_trylock(void) +{ + return percpu_down_read_trylock(&cpu_hotplug_lock); +} +EXPORT_SYMBOL_GPL(cpus_read_trylock); + void cpus_read_unlock(void) { percpu_up_read(&cpu_hotplug_lock); |