tracehook_tracer_task — return the task that is tracing the given task
struct task_struct * tracehook_tracer_task ( | struct task_struct * tsk); |
Returns NULL if noone is tracing task, or the struct task_struct
pointer to its tracer.
Must called under rcu_read_lock. The pointer returned might be kept
live only by RCU. During exec, this may be called with task_lock
held on task, still held from when tracehook_unsafe_exec was called.