new helper: restore_saved_sigmask()

first fruits of ..._restore_sigmask() helpers: now we can take
boilerplate "signal didn't have a handler, clear RESTORE_SIGMASK
and restore the blocked mask from ->saved_mask" into a common
helper.  Open-coded instances switched...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

1 files changed, 2 insertions, 4 deletions

diff --git a/arch/um/kernel/signal.c b/arch/um/kernel/signal.c
index 292e706016c5..6acf13c1740b 100644
--- a/arch/um/kernel/signal.c
+++ b/arch/um/kernel/signal.c
@@ -130,10 +130,8 @@ static int kern_do_signal(struct pt_regs *regs)
          * if there's no signal to deliver, we just put the saved sigmask
          * back
          */
-        if (!handled_sig && test_thread_flag(TIF_RESTORE_SIGMASK)) {
-                clear_thread_flag(TIF_RESTORE_SIGMASK);
-                sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
-        }
+        if (!handled_sig)
+                restore_saved_sigmask();
         return handled_sig;
 }