diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-03-28 23:42:48 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2025-04-09 22:22:03 +0300 |
| commit | 6fec833b9d70c54ceacbf7d07665215fbd0cddef (patch) | |
| tree | 5290e34539fe2a3ac194cefe27d598e7ce54c1b1 /include/linux | |
| parent | 68974e3a15b92639396f39d1cd09d5288ba687bc (diff) | |
| download | linux-6fec833b9d70c54ceacbf7d07665215fbd0cddef.tar.xz | |
cpufreq: Add and use cpufreq policy locking guards
Introduce "read" and "write" locking guards for cpufreq policies and use
them where applicable in the cpufreq core.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Tested-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://patch.msgid.link/8518682.T7Z3S40VBb@rjwysocki.net
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/cpufreq.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/cpufreq.h b/include/linux/cpufreq.h index 400fee6427a5..cb972d2aa8df 100644 --- a/include/linux/cpufreq.h +++ b/include/linux/cpufreq.h @@ -170,6 +170,12 @@ struct cpufreq_policy { struct notifier_block nb_max; }; +DEFINE_GUARD(cpufreq_policy_write, struct cpufreq_policy *, + down_write(&_T->rwsem), up_write(&_T->rwsem)) + +DEFINE_GUARD(cpufreq_policy_read, struct cpufreq_policy *, + down_read(&_T->rwsem), up_read(&_T->rwsem)) + /* * Used for passing new cpufreq policy data to the cpufreq driver's ->verify() * callback for sanitization. That callback is only expected to modify the min |