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e59a039119
Pull s390 fixes from Alexander Gordeev: - ptep_modify_prot_start() may be called in a loop, which might lead to the preempt_count overflow due to the unnecessary preemption disabling. Do not disable preemption to prevent the overflow - Events of type PERF_TYPE_HARDWARE are not tested for sampling and return -EOPNOTSUPP eventually. Instead, deny all sampling events by CPUMF counter facility and return -ENOENT to allow other PMUs to be tried - The PAI PMU driver returns -EINVAL if an event out of its range. That aborts a search for an alternative PMU driver. Instead, return -ENOENT to allow other PMUs to be tried * tag 's390-6.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/cpum_cf: Deny all sampling events by counter PMU s390/pai: Deny all events not handled by this PMU s390/mm: Prevent possible preempt_count overflow