aboutsummaryrefslogtreecommitdiffstats
path: root/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'kernel')
-rw-r--r--kernel/sched.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 97986f1f0be8..deeb1f8e0c30 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -668,7 +668,7 @@ static u64 div64_likely32(u64 divident, unsigned long divisor)
668/* 668/*
669 * Shift right and round: 669 * Shift right and round:
670 */ 670 */
671#define RSR(x, y) (((x) + (1UL << ((y) - 1))) >> (y)) 671#define SRR(x, y) (((x) + (1UL << ((y) - 1))) >> (y))
672 672
673static unsigned long 673static unsigned long
674calc_delta_mine(unsigned long delta_exec, unsigned long weight, 674calc_delta_mine(unsigned long delta_exec, unsigned long weight,
@@ -684,10 +684,10 @@ calc_delta_mine(unsigned long delta_exec, unsigned long weight,
684 * Check whether we'd overflow the 64-bit multiplication: 684 * Check whether we'd overflow the 64-bit multiplication:
685 */ 685 */
686 if (unlikely(tmp > WMULT_CONST)) 686 if (unlikely(tmp > WMULT_CONST))
687 tmp = RSR(RSR(tmp, WMULT_SHIFT/2) * lw->inv_weight, 687 tmp = SRR(SRR(tmp, WMULT_SHIFT/2) * lw->inv_weight,
688 WMULT_SHIFT/2); 688 WMULT_SHIFT/2);
689 else 689 else
690 tmp = RSR(tmp * lw->inv_weight, WMULT_SHIFT); 690 tmp = SRR(tmp * lw->inv_weight, WMULT_SHIFT);
691 691
692 return (unsigned long)min(tmp, (u64)(unsigned long)LONG_MAX); 692 return (unsigned long)min(tmp, (u64)(unsigned long)LONG_MAX);
693} 693}