1 files changed, 10 insertions, 47 deletions

diff --git a/arch/frv/kernel/signal.c b/arch/frv/kernel/signal.c
index 595bf1e5a5dc..f3b9064c548c 100644
--- a/arch/frv/kernel/signal.c
+++ b/arch/frv/kernel/signal.c
@@ -28,8 +28,6 @@
 
 #define DEBUG_SIG 0
 
-#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-
 struct fdpic_func_descriptor {
         unsigned long   text;
         unsigned long   GOT;
@@ -149,7 +147,6 @@ asmlinkage int sys_sigreturn(void)
             __copy_from_user(&set.sig[1], &frame->extramask, sizeof(frame->extramask)))
                 goto badframe;
 
-        sigdelsetmask(&set, ~_BLOCKABLE);
         set_current_blocked(&set);
 
         if (restore_sigcontext(&frame->sc, &gr8))
@@ -172,7 +169,6 @@ asmlinkage int sys_rt_sigreturn(void)
         if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
                 goto badframe;
 
-        sigdelsetmask(&set, ~_BLOCKABLE);
         set_current_blocked(&set);
 
         if (restore_sigcontext(&frame->uc.uc_mcontext, &gr8))
@@ -426,9 +422,10 @@ give_sigsegv:
 /*
  * OK, we're invoking a handler
  */
-static int handle_signal(unsigned long sig, siginfo_t *info,
-                         struct k_sigaction *ka, sigset_t *oldset)
+static void handle_signal(unsigned long sig, siginfo_t *info,
+                         struct k_sigaction *ka)
 {
+        sigset_t *oldset = sigmask_to_save();
         int ret;
 
         /* Are we from a system call? */
@@ -460,11 +457,11 @@ static int handle_signal(unsigned long sig, siginfo_t *info,
         else
                 ret = setup_frame(sig, ka, oldset);
 
-        if (ret == 0)
-                block_sigmask(ka, sig);
-
-        return ret;
+        if (ret)
+                return;
 
+        signal_delivered(sig, info, ka, __frame,
+                                 test_thread_flag(TIF_SINGLESTEP));
 } /* end handle_signal() */
 
 /*****************************************************************************/
@@ -477,44 +474,14 @@ static void do_signal(void)
 {
         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 cases get here from
-         * kernel mode. Just return without doing anything
-         * if so.
-         */
-        if (!user_mode(__frame))
-                return;
-
-        if (try_to_freeze())
-                goto no_signal;
-
-        if (test_thread_flag(TIF_RESTORE_SIGMASK))
-                oldset = &current->saved_sigmask;
-        else
-                oldset = &current->blocked;
-
         signr = get_signal_to_deliver(&info, &ka, __frame, NULL);
         if (signr > 0) {
-                if (handle_signal(signr, &info, &ka, oldset) == 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
-                         * clear the TIF_RESTORE_SIGMASK flag */
-                        if (test_thread_flag(TIF_RESTORE_SIGMASK))
-                                clear_thread_flag(TIF_RESTORE_SIGMASK);
-
-                        tracehook_signal_handler(signr, &info, &ka, __frame,
-                                                 test_thread_flag(TIF_SINGLESTEP));
-                }
-
+                handle_signal(signr, &info, &ka);
                 return;
         }
 
-no_signal:
         /* Did we come from a system call? */
         if (__frame->syscallno != -1) {
                 /* Restart the system call - no handlers present */
@@ -536,11 +503,7 @@ no_signal:
 
         /* if there's no signal to deliver, we just put the saved sigmask
          * back */
-        if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
-                clear_thread_flag(TIF_RESTORE_SIGMASK);
-                sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
-        }
-
+        restore_saved_sigmask();
 } /* end do_signal() */
 
 /*****************************************************************************/
@@ -555,7 +518,7 @@ asmlinkage void do_notify_resume(__u32 thread_info_flags)
                 clear_thread_flag(TIF_SINGLESTEP);
 
         /* deal with pending signal delivery */
-        if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
+        if (thread_info_flags & _TIF_SIGPENDING))
                 do_signal();
 
         /* deal with notification on about to resume userspace execution */