new helper: sigmask_to_save()

replace boilerplate "should we use ->saved_sigmask or ->blocked?"
with calls of obvious inlined helper...

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

1 files changed, 3 insertions, 8 deletions

diff --git a/arch/mn10300/kernel/signal.c b/arch/mn10300/kernel/signal.c
index b7994c38eacc..26a1d98c62a1 100644
--- a/arch/mn10300/kernel/signal.c
+++ b/arch/mn10300/kernel/signal.c
@@ -430,8 +430,9 @@ static inline void stepback(struct pt_regs *regs)
  */
 static int handle_signal(int sig,
                          siginfo_t *info, struct k_sigaction *ka,
-                         sigset_t *oldset, struct pt_regs *regs)
+                         struct pt_regs *regs)
 {
+        sigset_t *oldset = sigmask_to_save();
         int ret;
 
         /* Are we from a system call? */
@@ -475,7 +476,6 @@ static void do_signal(struct pt_regs *regs)
 {
         struct k_sigaction ka;
         siginfo_t info;
-        sigset_t *oldset;
         int signr;
 
         /* we want the common case to go fast, which is why we may in certain
@@ -483,14 +483,9 @@ static void do_signal(struct pt_regs *regs)
         if (!user_mode(regs))
                 return;
 
-        if (test_thread_flag(TIF_RESTORE_SIGMASK))
-                oldset = &current->saved_sigmask;
-        else
-                oldset = &current->blocked;
-
         signr = get_signal_to_deliver(&info, &ka, regs, NULL);
         if (signr > 0) {
-                if (handle_signal(signr, &info, &ka, oldset, regs) == 0) {
+                if (handle_signal(signr, &info, &ka, regs) == 0) {
                         /* a signal was successfully delivered; the saved
                          * sigmask will have been stored in the signal frame,
                          * and will be restored by sigreturn, so we can simply