ANDROID: vendor_hooks: Add hooks to dup_task_struct

Add hook to dup_task_struct for vendor data fields initialisation.

Bug: 188004638

Change-Id: I4b58604ee822fb8d1e0cc37bec72e820e7318427
Signed-off-by: Liangliang Li <liliangliang@vivo.com>
(cherry picked from commit f66d96b14aab5051fdf6b5054d87362c17a7b365)
(cherry picked from commit bafafe0ec46160573bef46d3d0f5d6c65fadaa3b)

include/trace/hooks/sched.h

@@ -313,6 +313,10 @@ DECLARE_RESTRICTED_HOOK(android_rvh_find_new_ilb,
 	TP_PROTO(struct cpumask *nohz_idle_cpus_mask, int *new_ilb),
 	TP_ARGS(nohz_idle_cpus_mask, new_ilb), 1);
 
+DECLARE_HOOK(android_vh_dup_task_struct,
+	TP_PROTO(struct task_struct *tsk, struct task_struct *orig),
+	TP_ARGS(tsk, orig));
+
 /* macro versions of hooks are no longer required */
 
 #endif /* _TRACE_HOOK_SCHED_H */

kernel/fork.c

@@ -1211,6 +1211,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig, int node)
 	android_init_vendor_data(tsk, 1);
 	android_init_oem_data(tsk, 1);
 
+	trace_android_vh_dup_task_struct(tsk, orig);
 	return tsk;
 
 free_stack:

kernel/sched/vendor_hooks.c

@@ -82,3 +82,4 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_update_thermal_stats);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_do_wake_up_sync);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_set_wake_flags);
 EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_find_new_ilb);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_dup_task_struct);