On 07-07-15, 20:43, Pan Xinhui wrote: > > Drivers can store their internal per-policy information in > policy->driver_data, lets use it. > > we have benefits after this replacing. > 1) memory saving. > 2) policy is shared by several cpus, per_cpu seems not correct. using > *driver_data* is more reasonable. > 3) fix a memory leak in acpi_cpufreq_cpu_exit. as policy->cpu might > change during cpu hotplug. So sometimes we cant't free *data*, use > *driver_data* to fix it. > 4) fix a zero return value of get_cur_freq_on_cpu. Only per_cpu of > policy->cpu is set to *data*, if we try to get cpufreq on other cpus, we > get zero instead of correct values. Use *driver_data* to fix it. > > Signed-off-by: Pan Xinhui <xinhuix....@intel.com> > --- > Changes from V1: > codes style fix, comments update > move cpufreq_cpu_put(policy) after we get *driver_data* > --- > drivers/cpufreq/acpi-cpufreq.c | 40 ++++++++++++++++++++++------------------ > 1 file changed, 22 insertions(+), 18 deletions(-)
Acked-by: Viresh Kumar <viresh.ku...@linaro.org> -- viresh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
