sys_sigsuspend(old_sigset_t mask,
	       unsigned long r3, unsigned long r4, unsigned long r5,
	       unsigned long r6, unsigned long r7,
	       struct pt_regs * regs)
{
	sigset_t saveset;

	mask &= _BLOCKABLE;
	spin_lock_irq(&current->sighand->siglock);
	saveset = current->blocked;
	siginitset(&current->blocked, mask);
	recalc_sigpending();
	spin_unlock_irq(&current->sighand->siglock);

	REF_REG_RET = -EINTR;
	while (1) {
		current->state = TASK_INTERRUPTIBLE;
		schedule();
		regs->pc += 4;    /* because sys_sigreturn decrements the pc */
		if (do_signal(regs, &saveset)) {
			/* pc now points at signal handler. Need to decrement
			   it because entry.S will increment it. */
			regs->pc -= 4;
			return -EINTR;
		}
	}
}
sys_sigsuspend(old_sigset_t mask,
	       unsigned long r3, unsigned long r4, unsigned long r5,
	       unsigned long r6, unsigned long r7,
	       struct pt_regs * regs)
{
	sigset_t saveset;

	mask &= _BLOCKABLE;
	spin_lock_irq(&current->sighand->siglock);
	saveset = current->blocked;
	siginitset(&current->blocked, mask);
	recalc_sigpending();
	spin_unlock_irq(&current->sighand->siglock);

	REF_REG_RET = -EINTR;
	while (1) {
		current->state = TASK_INTERRUPTIBLE;
		schedule();
		regs->pc += 4;     
		if (do_signal(regs, &saveset)) {
			 
			regs->pc -= 4;
			return -EINTR;
		}
	}
}