What is the default scheduling policy of a Linux kernel thread? Are all the policies like SCHED_NORMAL, SCHED_RR, SCHED_FIFO applicable for the kernel threads as well?
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kthread sets default policy to SCHED_NORMAL. See https://elixir.bootlin.com/linux/v5.18/source/kernel/kthread.c#L357 All task structs have a policy field, including kthreads.
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