Merge branch 'master' of /home/trondmy/kernel/linux-2.6/

[linux-2.6] / kernel / sched.c

diff --git a/kernel/sched.c b/kernel/sched.c
index 1fd67e16cd315388a67ba085dad46bb266bb5d93..08f86178aa34da228080edbdd8649a2a5b3a9d71 100644 (file)
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2897,14 +2897,16 @@ static void active_load_balance(struct rq *busiest_rq, int busiest_cpu)
 static void update_load(struct rq *this_rq)
 {
        unsigned long this_load;
-       int i, scale;
+       unsigned int i, scale;
 
        this_load = this_rq->raw_weighted_load;
 
        /* Update our load: */
-       for (i = 0, scale = 1; i < 3; i++, scale <<= 1) {
+       for (i = 0, scale = 1; i < 3; i++, scale += scale) {
                unsigned long old_load, new_load;
 
+               /* scale is effectively 1 << i now, and >> i divides by scale */
+
                old_load = this_rq->cpu_load[i];
                new_load = this_load;
                /*
@@ -2914,7 +2916,7 @@ static void update_load(struct rq *this_rq)
                 */
                if (new_load > old_load)
                        new_load += scale-1;
-               this_rq->cpu_load[i] = (old_load*(scale-1) + new_load) / scale;
+               this_rq->cpu_load[i] = (old_load*(scale-1) + new_load) >> i;
        }
 }