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, 7 insertions, 13 deletions

diff --git a/arch/avr32/kernel/signal.c b/arch/avr32/kernel/signal.c
index 8b12c3046137..0e2c0527c9fe 100644
--- a/arch/avr32/kernel/signal.c
+++ b/arch/avr32/kernel/signal.c
@@ -224,14 +224,14 @@ static inline void setup_syscall_restart(struct pt_regs *regs)
 
 static inline void
 handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
-              sigset_t *oldset, struct pt_regs *regs, int syscall)
+              struct pt_regs *regs, int syscall)
 {
         int ret;
 
         /*
          * Set up the stack frame
          */
-        ret = setup_rt_frame(sig, ka, info, oldset, regs);
+        ret = setup_rt_frame(sig, ka, info, sigmask_to_save(), regs);
 
         /*
          * Check that the resulting registers are sane
@@ -255,7 +255,7 @@ handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
  * doesn't want to handle. Thus you cannot kill init even with a
  * SIGKILL even by mistake.
  */
-int do_signal(struct pt_regs *regs, sigset_t *oldset, int syscall)
+static void do_signal(struct pt_regs *regs, int syscall)
 {
         siginfo_t info;
         int signr;
@@ -267,12 +267,7 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset, int syscall)
          * without doing anything if so.
          */
         if (!user_mode(regs))
-                return 0;
-
-        if (test_thread_flag(TIF_RESTORE_SIGMASK))
-                oldset = &current->saved_sigmask;
-        else if (!oldset)
-                oldset = &current->blocked;
+                return;
 
         signr = get_signal_to_deliver(&info, &ka, regs, NULL);
         if (syscall) {
@@ -298,11 +293,10 @@ int do_signal(struct pt_regs *regs, sigset_t *oldset, int syscall)
         if (signr == 0) {
                 /* No signal to deliver -- put the saved sigmask back */
                 restore_saved_sigmask();
-                return 0;
+                return;
         }
 
-        handle_signal(signr, &ka, &info, oldset, regs, syscall);
-        return 1;
+        handle_signal(signr, &ka, &info, regs, syscall);
 }
 
 asmlinkage void do_notify_resume(struct pt_regs *regs, struct thread_info *ti)
@@ -313,7 +307,7 @@ asmlinkage void do_notify_resume(struct pt_regs *regs, struct thread_info *ti)
                 syscall = 1;
 
         if (ti->flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
-                do_signal(regs, &current->blocked, syscall);
+                do_signal(regs, syscall);
 
         if (ti->flags & _TIF_NOTIFY_RESUME) {
                 clear_thread_flag(TIF_NOTIFY_RESUME);