4dcbfbb1ad
Allow CPUSchedulingPolicy to be set to "ext". SCHED_EXT is a new scheduling policy in Linux v6.12 that allows processes to be scheduled using custom BPF schedulers instead of the default in-kernel ones. Selectively setting the SCHED_EXT policy is useful for systems running in "partial mode" where not all processes are run using a custom scheduler. Fallback to SCHED_OTHER and print an error message for systems where SCHED_EXT isn't available.
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