init_sighand 45 init/init_task.c static struct sighand_struct init_sighand = { init_sighand 48 init/init_task.c .siglock = __SPIN_LOCK_UNLOCKED(init_sighand.siglock), init_sighand 49 init/init_task.c .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(init_sighand.signalfd_wqh), init_sighand 109 init/init_task.c .sighand = &init_sighand,