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ANDROID: sched: Add trace for __setscheduler_uclamp

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To know per-task uclamp request.

Bug: 191973176
Signed-off-by: Rick Yiu <rickyiu@google.com>
Change-Id: Ibd40391f2228db5daa410198339237879e67a078
This commit is contained in:
Rick Yiu
2021-06-28 14:56:29 +08:00
parent 5eb3930a32
commit 22a57c542b
3 changed files with 8 additions and 0 deletions
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1
drivers/android/vendor_hooks.c
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@@ -338,3 +338,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_aes_decrypt);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_force_compatible_pre);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_force_compatible_post);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_binder_print_transaction_info);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_setscheduler_uclamp);

5
include/trace/hooks/sched.h
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@@ -385,6 +385,11 @@ DECLARE_RESTRICTED_HOOK(android_rvh_force_compatible_pre,
DECLARE_RESTRICTED_HOOK(android_rvh_force_compatible_post,
TP_PROTO(void *unused),
TP_ARGS(unused), 1);
DECLARE_HOOK(android_vh_setscheduler_uclamp,
TP_PROTO(struct task_struct *tsk, int clamp_id, unsigned int value),
TP_ARGS(tsk, clamp_id, value));
/* macro versions of hooks are no longer required */
#endif /* _TRACE_HOOK_SCHED_H */

2
kernel/sched/core.c
View File

@@ -1545,12 +1545,14 @@ static void __setscheduler_uclamp(struct task_struct *p,
attr->sched_util_min != -1) {
uclamp_se_set(&p->uclamp_req[UCLAMP_MIN],
attr->sched_util_min, true);
trace_android_vh_setscheduler_uclamp(p, UCLAMP_MIN, attr->sched_util_min);
}
if (attr->sched_flags & SCHED_FLAG_UTIL_CLAMP_MAX &&
attr->sched_util_max != -1) {
uclamp_se_set(&p->uclamp_req[UCLAMP_MAX],
attr->sched_util_max, true);
trace_android_vh_setscheduler_uclamp(p, UCLAMP_MAX, attr->sched_util_max);
}
}