cpufreq: intel_pstate: Read global.no_turbo under READ_ONCE()

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Because global.no_turbo is generally not read under intel_pstate_driver_lock
make store_no_turbo() use WRITE_ONCE() for updating it (this is the only
place at which it is updated except for the initialization) and make the
majority of places reading it use READ_ONCE().

Also remove redundant global.turbo_disabled checks from places that
depend on the 'true' value of global.no_turbo because it can only be
'true' if global.turbo_disabled is also 'true'.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>

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Rafael J. Wysocki 2024-03-25 18:04:24 +01:00

parent c626a43845

commit 9558fae8ce

1 changed files with 6 additions and 6 deletions

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drivers/cpufreq/intel_pstate.c

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