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ANDROID: sched: Add vendor hook for update_load_sum

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vendor may have the need to modify update_load_sum function

Bug: 181105055
Change-Id: I35964977a4b8917c62773d48a37340f880774e38
Signed-off-by: Chungkai Mei <chungkai@google.com>
This commit is contained in:
Chungkai Mei
2023-11-02 05:31:05 +00:00
committed by Chung-Kai (Michael) Mei
parent f88c9605bd
commit 984523c368
3 changed files with 9 additions and 0 deletions
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5
include/trace/hooks/sched.h
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@@ -434,6 +434,11 @@ DECLARE_RESTRICTED_HOOK(android_rvh_update_load_avg,
TP_PROTO(u64 now, struct cfs_rq *cfs_rq, struct sched_entity *se),
TP_ARGS(now, cfs_rq, se), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_update_load_sum,
TP_PROTO(struct sched_avg *sa, u64 *delta, unsigned int *sched_pelt_lshift),
TP_ARGS(sa, delta, sched_pelt_lshift), 1);
DECLARE_RESTRICTED_HOOK(android_rvh_remove_entity_load_avg,
TP_PROTO(struct cfs_rq *cfs_rq, struct sched_entity *se),
TP_ARGS(cfs_rq, se), 1);

3
kernel/sched/pelt.c
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@@ -25,6 +25,7 @@
*/
#include <linux/sched.h>
#include <trace/hooks/sched.h>
#include "sched.h"
#include "pelt.h"
@@ -205,6 +206,8 @@ int ___update_load_sum(u64 now, struct sched_avg *sa,
sa->last_update_time += delta << 10;
trace_android_rvh_update_load_sum(sa, &delta, &sched_pelt_lshift);
/*
* running is a subset of runnable (weight) so running can't be set if
* runnable is clear. But there are some corner cases where the current

1
kernel/sched/vendor_hooks.c
View File

@@ -104,6 +104,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_dup_task_struct);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_account_task_time);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_attach_entity_load_avg);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_detach_entity_load_avg);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_load_sum);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_load_avg);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_remove_entity_load_avg);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_blocked_fair);