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sched: walt: Improve FEEC energy variable nomenclature

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We are using the terms "prev_delta" and "best_delta" to represent energy
consumption values. Change to "prev_energy" and "best_energy" to reflect
the same.

Change-Id: Ie63e3029c3be6ee5e8cc12867d690b0fc708416f
Signed-off-by: Shaleen Agrawal <shalagra@codeaurora.org>
This commit is contained in:
Shaleen Agrawal 2021-04-20 15:41:35 -07:00 committed by Rishabh Bhatnagar
parent c79c755853
commit 1226d14b06
1 changed files with 10 additions and 10 deletions
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20
kernel/sched/walt/walt_cfs.c
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@ -501,7 +501,7 @@ static DEFINE_PER_CPU(cpumask_t, energy_cpus);
int walt_find_energy_efficient_cpu(struct task_struct *p, int prev_cpu,
int sync, int sibling_count_hint)
{
unsigned long prev_delta = ULONG_MAX, best_delta = ULONG_MAX;
unsigned long prev_energy = ULONG_MAX, best_energy = ULONG_MAX;
struct root_domain *rd = cpu_rq(cpumask_first(cpu_active_mask))->rd;
int weight, cpu = smp_processor_id(), best_energy_cpu = prev_cpu;
struct perf_domain *pd;
@ -589,10 +589,10 @@ int walt_find_energy_efficient_cpu(struct task_struct *p, int prev_cpu,
}
if (cpumask_test_cpu(prev_cpu, &p->cpus_mask))
prev_delta = best_delta =
prev_energy = best_energy =
walt_compute_energy(p, prev_cpu, pd);
else
prev_delta = best_delta = ULONG_MAX;
prev_energy = best_energy = ULONG_MAX;
/* Select the best candidate energy-wise. */
for_each_cpu(cpu, candidates) {
@ -601,15 +601,15 @@ int walt_find_energy_efficient_cpu(struct task_struct *p, int prev_cpu,
cur_energy = walt_compute_energy(p, cpu, pd);
trace_sched_compute_energy(p, cpu, cur_energy,
prev_delta, best_delta, best_energy_cpu);
prev_energy, best_energy, best_energy_cpu);
if (cur_energy < best_delta) {
best_delta = cur_energy;
if (cur_energy < best_energy) {
best_energy = cur_energy;
best_energy_cpu = cpu;
} else if (cur_energy == best_delta) {
} else if (cur_energy == best_energy) {
if (select_cpu_same_energy(cpu, best_energy_cpu,
prev_cpu)) {
best_delta = cur_energy;
best_energy = cur_energy;
best_energy_cpu = cpu;
}
}
@ -624,8 +624,8 @@ int walt_find_energy_efficient_cpu(struct task_struct *p, int prev_cpu,
*/
if (!(available_idle_cpu(best_energy_cpu) &&
walt_get_idle_exit_latency(cpu_rq(best_energy_cpu)) <= 1) &&
(prev_delta != ULONG_MAX) && (best_energy_cpu != prev_cpu) &&
((prev_delta - best_delta) <= prev_delta >> 4) &&
(prev_energy != ULONG_MAX) && (best_energy_cpu != prev_cpu) &&
((prev_energy - best_energy) <= prev_energy >> 4) &&
(capacity_orig_of(prev_cpu) <= capacity_orig_of(start_cpu)))
best_energy_cpu = prev_cpu;