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Suggested by Linus: Changed time accounting for busy-poll: - Make it microsecond based. - Use unsigned longs. - Revert back to use time_after instead of time_in_range. Reorder poll/select busy loop conditions: - Clear busy_flag after one time we can't busy-poll. - Only init busy_end if we actually are going to busy-poll. Added one more missing need_resched() test. Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>