Commit a0dc7260 authored Sep 05, 2007 by Ingo Molnar

sched: fix niced_granularity() shift



fix niced_granularity(). This resulted in under-scheduling for
CPU-bound negative nice level tasks (and this in turn caused
higher than necessary latencies in nice-0 tasks).

Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent 7fd0d2dd

kernel/sched_fair.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -291,7 +291,7 @@ niced_granularity(struct sched_entity *curr, unsigned long granularity)
		/*
		* It will always fit into 'long':
		*/
		return (long) (tmp >> WMULT_SHIFT);
		return (long) (tmp >> (WMULT_SHIFT-NICE_0_SHIFT));
		}

		static inline void