__cleanup_sighand  903 fs/exec.c      		__cleanup_sighand(oldsighand);
__cleanup_sighand 1844 include/linux/sched.h extern void __cleanup_sighand(struct sighand_struct *);
__cleanup_sighand  141 kernel/exit.c  	__cleanup_sighand(sighand);
__cleanup_sighand 1267 kernel/fork.c  	__cleanup_sighand(p->sighand);