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Subject[RFC][Patch 12/18] sched: Update update_sd_lb_stats() to use u64
Date
Update update_sd_lb_stats() and helper functions to use u64/s64 for weight
calculations.

Signed-off-by: Nikhil Rao <ncrao@google.com>
---
kernel/sched_fair.c | 22 +++++++++++-----------
1 files changed, 11 insertions(+), 11 deletions(-)
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index d5b1276..12b25b7 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -2308,23 +2308,23 @@ static int move_tasks(struct rq *this_rq, int this_cpu, struct rq *busiest,
* during load balancing.
*/
struct sd_lb_stats {
- struct sched_group *busiest; /* Busiest group in this sd */
- struct sched_group *this; /* Local group in this sd */
- unsigned long total_load; /* Total load of all groups in sd */
- unsigned long total_pwr; /* Total power of all groups in sd */
- unsigned long avg_load; /* Average load across all groups in sd */
+ struct sched_group *busiest; /* Busiest group in this sd */
+ struct sched_group *this; /* Local group in this sd */
+ u64 total_load; /* Total load of all groups in sd */
+ unsigned long total_pwr; /* Total power of all groups in sd */
+ u64 avg_load; /* Avg load across all groups in sd */

/** Statistics of this group */
- unsigned long this_load;
- unsigned long this_load_per_task;
+ u64 this_load;
+ u64 this_load_per_task;
unsigned long this_nr_running;
unsigned long this_has_capacity;
unsigned int this_idle_cpus;

/* Statistics of the busiest group */
unsigned int busiest_idle_cpus;
- unsigned long max_load;
- unsigned long busiest_load_per_task;
+ u64 max_load;
+ u64 busiest_load_per_task;
unsigned long busiest_nr_running;
unsigned long busiest_group_capacity;
unsigned long busiest_has_capacity;
@@ -2461,8 +2461,8 @@ static inline void update_sd_power_savings_stats(struct sched_group *group,
group_first_cpu(group) > group_first_cpu(sds->group_min))) {
sds->group_min = group;
sds->min_nr_running = sgs->sum_nr_running;
- sds->min_load_per_task = sgs->sum_weighted_load /
- sgs->sum_nr_running;
+ sds->min_load_per_task = div_u64(sgs->sum_weighted_load,
+ sgs->sum_nr_running);
}

/*
--
1.7.3.1


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