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ANDROID: vendor_hooks: Add hook for trace_android_vh_copy_process

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Add hook for trace_android_vh_copy_process, which gives the vendor a chance to monitor the total thread count of the system and the thread count under a particular process

Bug: 325765508
Bug: 327977501
Change-Id: Ibeb8aa571d44997ac10623321cd00d1686bde033
Signed-off-by: chenweitao <chenweitao@oppo.com>
This commit is contained in:
chenweitao 2024-02-18 11:32:35 +08:00
parent 0cfa80d3c3
commit 239dbc2518
3 changed files with 7 additions and 0 deletions
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5
include/trace/hooks/sched.h
View File

@ -276,6 +276,11 @@ DECLARE_HOOK(android_vh_free_task,
TP_PROTO(struct task_struct *p),
TP_ARGS(p));
DECLARE_HOOK(android_vh_copy_process,
TP_PROTO(struct task_struct *p, int nr_threads, int current_signal_nr_threads),
TP_ARGS(p, nr_threads, current_signal_nr_threads));
DECLARE_HOOK(android_vh_irqtime_account_process_tick,
TP_PROTO(struct task_struct *p, struct rq *rq, int user_tick, int ticks),
TP_ARGS(p, rq, user_tick, ticks));

1
kernel/fork.c
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@ -2590,6 +2590,7 @@ static __latent_entropy struct task_struct *copy_process(
attach_pid(p, PIDTYPE_PID);
nr_threads++;
}
trace_android_vh_copy_process(current, nr_threads, current->signal->nr_threads);
total_forks++;
hlist_del_init(&delayed.node);
spin_unlock(&current->sighand->siglock);

1
kernel/sched/vendor_hooks.c
View File

@ -46,6 +46,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_pick_next_entity);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_check_preempt_wakeup);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_set_cpus_allowed_by_task);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_free_task);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_copy_process);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_uclamp_eff_get);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_after_enqueue_task);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_after_dequeue_task);