From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 14 Mar 2008 21:20:01 +0000 (+0100)
Subject: sched: fix calc_delta_mine()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=27d117266097101dcf79c4576903cdcdd0eabffc;p=linux-beck.git

sched: fix calc_delta_mine()

lw->weight can be 0 for a short time during bootup.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
---

diff --git a/kernel/sched.c b/kernel/sched.c
index 3a4ba3dc0f49..6b06f23261c0 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1084,7 +1084,7 @@ calc_delta_mine(unsigned long delta_exec, unsigned long weight,
 	u64 tmp;
 
 	if (unlikely(!lw->inv_weight))
-		lw->inv_weight = (WMULT_CONST - lw->weight/2) / lw->weight + 1;
+		lw->inv_weight = (WMULT_CONST-lw->weight/2) / (lw->weight+1);
 
 	tmp = (u64)delta_exec * weight;
 	/*