oldsighand       1064 fs/exec.c      	struct sighand_struct *oldsighand = tsk->sighand;
oldsighand       1065 fs/exec.c      	spinlock_t *lock = &oldsighand->siglock;
oldsighand       1194 fs/exec.c      	if (refcount_read(&oldsighand->count) != 1) {
oldsighand       1205 fs/exec.c      		memcpy(newsighand->action, oldsighand->action,
oldsighand       1209 fs/exec.c      		spin_lock(&oldsighand->siglock);
oldsighand       1211 fs/exec.c      		spin_unlock(&oldsighand->siglock);
oldsighand       1214 fs/exec.c      		__cleanup_sighand(oldsighand);