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ANDROID: sched: Add vendor hook for util_est_update

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Vendor may have its own estimated utilization.

Bug: 170508405
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: I6055907de75ace4586c3ad854d40f42e3bf40147
This commit is contained in:
Rick Yiu
2021-03-16 10:07:31 +08:00
parent 89ea2f1eca
commit 475aea007d
3 changed files with 10 additions and 0 deletions
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1
drivers/android/vendor_hooks.c
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@@ -205,3 +205,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_memory_ro);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_memory_rw);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_module_permit_before_init);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_module_permit_after_init);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_util_est_update);

4
include/trace/hooks/sched.h
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@@ -288,6 +288,10 @@ DECLARE_RESTRICTED_HOOK(android_rvh_replace_next_task_fair,
TP_PROTO(struct rq *rq, struct task_struct **p, struct sched_entity **se, bool *repick, bool simple),
TP_ARGS(rq, p, se, repick, simple), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_util_est_update,
TP_PROTO(struct cfs_rq *cfs_rq, struct task_struct *p, bool task_sleep, int *ret),
TP_ARGS(cfs_rq, p, task_sleep, ret), 1);
/* macro versions of hooks are no longer required */
#endif /* _TRACE_HOOK_SCHED_H */

5
kernel/sched/fair.c
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@@ -3971,6 +3971,11 @@ static inline void util_est_update(struct cfs_rq *cfs_rq,
{
long last_ewma_diff;
struct util_est ue;
int ret = 0;
trace_android_rvh_util_est_update(cfs_rq, p, task_sleep, &ret);
if (ret)
return;
if (!sched_feat(UTIL_EST))
return;