sched: cleanup: refactor common code of sleep_on / wait_for_completion
Refactor common code of sleep_on / wait_for_completion These functions were largely cut'n'pasted. This moves the common code into single helpers instead. Advantage is about 1k less code on x86-64 and 91 lines of code removed. It adds one function call to the non timeout version of the functions; i don't expect this to be measurable. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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