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Date: Thu, 4 Apr 2013 10:00:48 +0800
From: Alex Shi <alex.shi@...el.com>
To: mingo@...hat.com, peterz@...radead.org, tglx@...utronix.de,
akpm@...ux-foundation.org, arjan@...ux.intel.com, bp@...en8.de,
pjt@...gle.com, namhyung@...nel.org, efault@....de,
morten.rasmussen@....com
Cc: vincent.guittot@...aro.org, gregkh@...uxfoundation.org,
preeti@...ux.vnet.ibm.com, viresh.kumar@...aro.org,
linux-kernel@...r.kernel.org, alex.shi@...el.com,
len.brown@...el.com, rafael.j.wysocki@...el.com, jkosina@...e.cz,
clark.williams@...il.com, tony.luck@...el.com,
keescook@...omium.org, mgorman@...e.de, riel@...hat.com
Subject: [patch v7 07/21] sched: move sg/sd_lb_stats struct ahead
Power aware fork/exec/wake balancing needs both of structs in incoming
patches. So move ahead before it.
Signed-off-by: Alex Shi <alex.shi@...el.com>
---
kernel/sched/fair.c | 99 +++++++++++++++++++++++++++--------------------------
1 file changed, 50 insertions(+), 49 deletions(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 6b7917b..a0bd2f3 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3301,6 +3301,56 @@ done:
}
/*
+ * sd_lb_stats - Structure to store the statistics of a sched_domain
+ * 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 */
+
+ /** Statistics of this group */
+ unsigned long this_load;
+ unsigned long this_load_per_task;
+ unsigned long this_nr_running;
+ unsigned int 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;
+ unsigned long busiest_nr_running;
+ unsigned long busiest_group_capacity;
+ unsigned int busiest_has_capacity;
+ unsigned int busiest_group_weight;
+
+ int group_imb; /* Is there imbalance in this sd */
+
+ /* Varibles of power awaring scheduling */
+ unsigned int sd_util; /* sum utilization of this domain */
+ struct sched_group *group_leader; /* Group which relieves group_min */
+};
+
+/*
+ * sg_lb_stats - stats of a sched_group required for load_balancing
+ */
+struct sg_lb_stats {
+ unsigned long avg_load; /*Avg load across the CPUs of the group */
+ unsigned long group_load; /* Total load over the CPUs of the group */
+ unsigned long sum_nr_running; /* Nr tasks running in the group */
+ unsigned long sum_weighted_load; /* Weighted load of group's tasks */
+ unsigned long group_capacity;
+ unsigned long idle_cpus;
+ unsigned long group_weight;
+ int group_imb; /* Is there an imbalance in the group ? */
+ int group_has_capacity; /* Is there extra capacity in the group? */
+ unsigned int group_util; /* sum utilization of group */
+};
+
+/*
* sched_balance_self: balance the current task (running on cpu) in domains
* that have the 'flag' flag set. In practice, this is SD_BALANCE_FORK and
* SD_BALANCE_EXEC.
@@ -4175,55 +4225,6 @@ static unsigned long task_h_load(struct task_struct *p)
#endif
/********** Helpers for find_busiest_group ************************/
-/*
- * sd_lb_stats - Structure to store the statistics of a sched_domain
- * 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 */
-
- /** Statistics of this group */
- unsigned long this_load;
- unsigned long 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;
- unsigned long busiest_nr_running;
- unsigned long busiest_group_capacity;
- unsigned long busiest_has_capacity;
- unsigned int busiest_group_weight;
-
- int group_imb; /* Is there imbalance in this sd */
-
- /* Varibles of power awaring scheduling */
- unsigned int sd_util; /* sum utilization of this domain */
- struct sched_group *group_leader; /* Group which relieves group_min */
-};
-
-/*
- * sg_lb_stats - stats of a sched_group required for load_balancing
- */
-struct sg_lb_stats {
- unsigned long avg_load; /*Avg load across the CPUs of the group */
- unsigned long group_load; /* Total load over the CPUs of the group */
- unsigned long sum_nr_running; /* Nr tasks running in the group */
- unsigned long sum_weighted_load; /* Weighted load of group's tasks */
- unsigned long group_capacity;
- unsigned long idle_cpus;
- unsigned long group_weight;
- int group_imb; /* Is there an imbalance in the group ? */
- int group_has_capacity; /* Is there extra capacity in the group? */
- unsigned int group_util; /* sum utilization of group */
-};
/**
* get_sd_load_idx - Obtain the load index for a given sched domain.
--
1.7.12
--
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