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>

2 files changed, 7 insertions, 17 deletions

diff --git a/arch/sh/kernel/signal_32.c b/arch/sh/kernel/signal_32.c
index 92f4173ad29..bfb3d599f03 100644
--- a/arch/sh/kernel/signal_32.c
+++ b/arch/sh/kernel/signal_32.c
@@ -524,8 +524,9 @@ handle_syscall_restart(unsigned long save_r0, struct pt_regs *regs,
  */
 static int
 handle_signal(unsigned long sig, struct k_sigaction *ka, siginfo_t *info,
-              sigset_t *oldset, struct pt_regs *regs, unsigned int save_r0)
+              struct pt_regs *regs, unsigned int save_r0)
 {
+        sigset_t *oldset = sigmask_to_save();
         int ret;
 
         /* Set up the stack frame */
@@ -554,7 +555,6 @@ static void do_signal(struct pt_regs *regs, unsigned int save_r0)
         siginfo_t info;
         int signr;
         struct k_sigaction ka;
-        sigset_t *oldset;
 
         /*
          * We want the common case to go fast, which
@@ -565,17 +565,12 @@ static void do_signal(struct pt_regs *regs, unsigned int save_r0)
         if (!user_mode(regs))
                 return;
 
-        if (current_thread_info()->status & TS_RESTORE_SIGMASK)
-                oldset = &current->saved_sigmask;
-        else
-                oldset = &current->blocked;
-
         signr = get_signal_to_deliver(&info, &ka, regs, NULL);
         if (signr > 0) {
                 handle_syscall_restart(save_r0, regs, &ka.sa);
 
                 /* Whee!  Actually deliver the signal.  */
-                if (handle_signal(signr, &ka, &info, oldset,
+                if (handle_signal(signr, &ka, &info,
                                   regs, save_r0) == 0) {
                         /*
                          * A signal was successfully delivered; the saved
diff --git a/arch/sh/kernel/signal_64.c b/arch/sh/kernel/signal_64.c
index 6e191ef0aa6..cc22d2b2e3f 100644
--- a/arch/sh/kernel/signal_64.c
+++ b/arch/sh/kernel/signal_64.c
@@ -45,7 +45,7 @@
 
 static int
 handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
-                sigset_t *oldset, struct pt_regs * regs);
+                struct pt_regs * regs);
 
 static inline void
 handle_syscall_restart(struct pt_regs *regs, struct sigaction *sa)
@@ -88,7 +88,6 @@ static void do_signal(struct pt_regs *regs)
         siginfo_t info;
         int signr;
         struct k_sigaction ka;
-        sigset_t *oldset;
 
         /*
          * We want the common case to go fast, which
@@ -99,17 +98,12 @@ static void do_signal(struct pt_regs *regs)
         if (!user_mode(regs))
                 return;
 
-        if (current_thread_info()->status & TS_RESTORE_SIGMASK)
-                oldset = &current->saved_sigmask;
-        else
-                oldset = &current->blocked;
-
         signr = get_signal_to_deliver(&info, &ka, regs, 0);
         if (signr > 0) {
                 handle_syscall_restart(regs, &ka.sa);
 
                 /* Whee!  Actually deliver the signal.  */
-                if (handle_signal(signr, &info, &ka, oldset, regs) == 0) {
+                if (handle_signal(signr, &info, &ka, regs) == 0) {
                         /*
                          * If a signal was successfully delivered, the
                          * saved sigmask is in its frame, and we can
@@ -656,8 +650,9 @@ give_sigsegv:
  */
 static int
 handle_signal(unsigned long 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;
 
         /* Set up the stack frame */