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ANDROID: vendor_hooks: Add hooks to dup_task_struct

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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)
This commit is contained in:
Liangliang Li
2021-05-13 15:01:26 +08:00
committed by Todd Kjos
parent d450a89aa1
commit 50a2b178c5
3 changed files with 6 additions and 0 deletions
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1
drivers/android/vendor_hooks.c
View File

@@ -217,6 +217,7 @@ EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_cma_drain_all_pages_bypass);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_pcplist_add_cma_pages_bypass);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_irqtime_account_process_tick);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_free_task);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_dup_task_struct);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_after_enqueue_task);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_after_dequeue_task);
EXPORT_TRACEPOINT_SYMBOL_GPL(android_rvh_enqueue_entity);

4
include/trace/hooks/sched.h
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@@ -402,6 +402,10 @@ DECLARE_HOOK(android_vh_force_compatible_post,
TP_PROTO(void *unused),
TP_ARGS(unused));
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 */

1
kernel/fork.c
View File

@@ -1018,6 +1018,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig, int node)
memset(&tsk->android_vendor_data1, 0, sizeof(tsk->android_vendor_data1));
memset(&tsk->android_oem_data1, 0, sizeof(tsk->android_oem_data1));
#endif
trace_android_vh_dup_task_struct(tsk, orig);
return tsk;
free_stack: