processor: get rid of cpu_relax_yield
stop_machine is the only user left of cpu_relax_yield. Given that it now has special semantics which are tied to stop_machine introduce a weak stop_machine_yield function which architectures can override, and get rid of the generic cpu_relax_yield implementation. Acked-by:Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
Heiko Carstens <heiko.carstens@de.ibm.com>
parent
38f2c691
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