From a0dc72601d48b171b4870dfdd0824901a2b2b1a9 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Wed, 5 Sep 2007 14:32:49 +0200 Subject: [PATCH] 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 --- kernel/sched_fair.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index ce39282d9c..810b52d994 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -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 -- 2.39.5