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, 4 insertions, 14 deletions

diff --git a/arch/sparc/kernel/signal_32.c b/arch/sparc/kernel/signal_32.c
index 9dd97d2e171..5d74410c787 100644
--- a/arch/sparc/kernel/signal_32.c
+++ b/arch/sparc/kernel/signal_32.c
@@ -451,8 +451,9 @@ sigsegv:
 
 static inline int
 handle_signal(unsigned long signr, struct k_sigaction *ka,
-              siginfo_t *info, sigset_t *oldset, struct pt_regs *regs)
+              siginfo_t *info, struct pt_regs *regs)
 {
+        sigset_t *oldset = sigmask_to_save();
         int err;
 
         if (ka->sa.sa_flags & SA_SIGINFO)
@@ -498,7 +499,6 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
 {
         struct k_sigaction ka;
         int restart_syscall;
-        sigset_t *oldset;
         siginfo_t info;
         int signr;
 
@@ -523,11 +523,6 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
         if (pt_regs_is_syscall(regs) && (regs->psr & PSR_C))
                 regs->u_regs[UREG_G6] = orig_i0;
 
-        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 the debugger messes with the program counter, it clears
@@ -544,7 +539,7 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
         if (signr > 0) {
                 if (restart_syscall)
                         syscall_restart(orig_i0, regs, &ka.sa);
-                if (handle_signal(signr, &ka, &info, oldset, regs) == 0) {
+                if (handle_signal(signr, &ka, &info, 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
diff --git a/arch/sparc/kernel/signal_64.c b/arch/sparc/kernel/signal_64.c
index 55b820ee0ac..088a733f83f 100644
--- a/arch/sparc/kernel/signal_64.c
+++ b/arch/sparc/kernel/signal_64.c
@@ -512,7 +512,7 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
 {
         struct k_sigaction ka;
         int restart_syscall;
-        sigset_t *oldset;
+        sigset_t *oldset = sigmask_to_save();
         siginfo_t info;
         int signr;
         
@@ -538,11 +538,6 @@ static void do_signal(struct pt_regs *regs, unsigned long orig_i0)
             (regs->tstate & (TSTATE_XCARRY | TSTATE_ICARRY)))
                 regs->u_regs[UREG_G6] = orig_i0;
 
-        if (current_thread_info()->status & TS_RESTORE_SIGMASK)
-                oldset = &current->saved_sigmask;
-        else
-                oldset = &current->blocked;
-
 #ifdef CONFIG_COMPAT
         if (test_thread_flag(TIF_32BIT)) {
                 extern void do_signal32(sigset_t *, struct pt_regs *);