__cleanup_sighand 1214 fs/exec.c      		__cleanup_sighand(oldsighand);
__cleanup_sighand  556 include/linux/sched/signal.h extern void __cleanup_sighand(struct sighand_struct *);
__cleanup_sighand  168 kernel/exit.c  	__cleanup_sighand(sighand);
__cleanup_sighand 2256 kernel/fork.c  	__cleanup_sighand(p->sighand);