From: Ingo Molnar <mingo@elte.hu>
Date: Fri, 14 Mar 2008 22:48:28 +0000 (+0100)
Subject: sched: fix update_load_add()/sub()
X-Git-Tag: v2.6.25-rc6~9
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=e89996ae3f9e88d4fd75751a15c10b19d197e702;p=linux-2.6

sched: fix update_load_add()/sub()

Clear the cached inverse value when updating load. This is needed for
calc_delta_mine() to work correctly when using the rq load.

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 9df9ba73cb..3a4ba3dc0f 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -1108,11 +1108,13 @@ calc_delta_fair(unsigned long delta_exec, struct load_weight *lw)
 static inline void update_load_add(struct load_weight *lw, unsigned long inc)
 {
 	lw->weight += inc;
+	lw->inv_weight = 0;
 }
 
 static inline void update_load_sub(struct load_weight *lw, unsigned long dec)
 {
 	lw->weight -= dec;
+	lw->inv_weight = 0;
 }
 
 /*