alpha: switch osf_sigprocmask() to use of sigprocmask()

[net-next-2.6.git] / arch / alpha / kernel / signal.c

diff --git a/arch/alpha/kernel/signal.c b/arch/alpha/kernel/signal.c
index 0f6b51ae865aa87d70c3095cee6cec7057e0834a..06609aa363b61c6b73bba897af25023cea5f4924 100644 (file)
--- a/arch/alpha/kernel/signal.c
+++ b/arch/alpha/kernel/signal.c
@@ -41,46 +41,20 @@ static void do_signal(struct pt_regs *, struct switch_stack *,
 /*
  * The OSF/1 sigprocmask calling sequence is different from the
  * C sigprocmask() sequence..
- *
- * how:
- * 1 - SIG_BLOCK
- * 2 - SIG_UNBLOCK
- * 3 - SIG_SETMASK
- *
- * We change the range to -1 .. 1 in order to let gcc easily
- * use the conditional move instructions.
- *
- * Note that we don't need to acquire the kernel lock for SMP
- * operation, as all of this is local to this thread.
  */
-SYSCALL_DEFINE3(osf_sigprocmask, int, how, unsigned long, newmask,
-               struct pt_regs *, regs)
+SYSCALL_DEFINE2(osf_sigprocmask, int, how, unsigned long, newmask)
 {
-       unsigned long oldmask = -EINVAL;
-
-       if ((unsigned long)how-1 <= 2) {
-               long sign = how-2;              /* -1 .. 1 */
-               unsigned long block, unblock;
-
-               newmask &= _BLOCKABLE;
-               spin_lock_irq(&current->sighand->siglock);
-               oldmask = current->blocked.sig[0];
-
-               unblock = oldmask & ~newmask;
-               block = oldmask | newmask;
-               if (!sign)
-                       block = unblock;
-               if (sign <= 0)
-                       newmask = block;
-               if (_NSIG_WORDS > 1 && sign > 0)
-                       sigemptyset(&current->blocked);
-               current->blocked.sig[0] = newmask;
-               recalc_sigpending();
-               spin_unlock_irq(&current->sighand->siglock);
-
-               regs->r0 = 0;           /* special no error return */
+       sigset_t oldmask;
+       sigset_t mask;
+       unsigned long res;
+
+       siginitset(&mask, newmask & ~_BLOCKABLE);
+       res = siprocmask(how, &mask, &oldmask);
+       if (!res) {
+               force_successful_syscall_return();
+               res = oldmask->sig[0];
        }
-       return oldmask;
+       return res;
 }
 
 SYSCALL_DEFINE3(osf_sigaction, int, sig,