174 #define TASK_TOMBSTONE ((void *)-1L)  macro
178 	return READ_ONCE(event->owner) == TASK_TOMBSTONE;  in is_kernel_event()
287 	if (task == TASK_TOMBSTONE)  in event_function_call()
300 	if (task == TASK_TOMBSTONE) {  in event_function_call()
326 		if (task == TASK_TOMBSTONE)  in event_function_local()
335 	if (task == TASK_TOMBSTONE)  in event_function_local()
1183 		if (ctx->task && ctx->task != TASK_TOMBSTONE)  in put_ctx()
1395 		if (ctx->task == TASK_TOMBSTONE ||  in perf_lock_task_context()
2821 		if (ctx->task == TASK_TOMBSTONE) {  in perf_install_in_context()
2838 	if (WARN_ON_ONCE(task == TASK_TOMBSTONE))  in perf_install_in_context()
2878 	if (WARN_ON_ONCE(task == TASK_TOMBSTONE)) {  in perf_install_in_context()
10661 	if (task == TASK_TOMBSTONE)  in perf_event_addr_filters_apply()
12516 	if (ctx->task == TASK_TOMBSTONE) {  in SYSCALL_DEFINE5()
12781 	event->owner = TASK_TOMBSTONE;  in perf_event_create_kernel_counter()
12798 	if (ctx->task == TASK_TOMBSTONE) {  in perf_event_create_kernel_counter()
12955 		if (task && task != TASK_TOMBSTONE)  in sync_child_event()
13058 	WRITE_ONCE(child_ctx->task, TASK_TOMBSTONE);  in perf_event_exit_task_context()
13163 	WRITE_ONCE(ctx->task, TASK_TOMBSTONE);  in perf_event_free_task()