X-Git-Url: http://git.monstr.eu/?p=linux-2.6-microblaze.git;a=blobdiff_plain;f=arch%2Fs390%2Fkernel%2Fsignal.c;h=fce1b2a28a4001ff60d1c4cd04d8201835839ec1;hp=b27b6c1f058d07e8175e85c640c243254e4efa84;hb=56e62a7370283601;hpb=d64c6f96ba86bd8b97ed8d6762a8c8cc1770d214

diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index b27b6c1f058d..fce1b2a28a40 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -170,6 +170,7 @@ static int restore_sigregs(struct pt_regs *regs, _sigregs __user *sregs)
 	fpregs_load(&user_sregs.fpregs, &current->thread.fpu);
 
 	clear_pt_regs_flag(regs, PIF_SYSCALL); /* No longer in a system call */
+	clear_pt_regs_flag(regs, PIF_SYSCALL_RESTART);
 	return 0;
 }
 
@@ -459,7 +460,8 @@ static void handle_signal(struct ksignal *ksig, sigset_t *oldset,
  * the kernel can handle, and then we build all the user-level signal handling
  * stack-frames in one go after that.
  */
-void do_signal(struct pt_regs *regs)
+
+void arch_do_signal_or_restart(struct pt_regs *regs, bool has_signal)
 {
 	struct ksignal ksig;
 	sigset_t *oldset = sigmask_to_save();
@@ -472,7 +474,7 @@ void do_signal(struct pt_regs *regs)
 	current->thread.system_call =
 		test_pt_regs_flag(regs, PIF_SYSCALL) ? regs->int_code : 0;
 
-	if (test_thread_flag(TIF_SIGPENDING) && get_signal(&ksig)) {
+	if (has_signal && get_signal(&ksig)) {
 		/* Whee!  Actually deliver the signal.  */
 		if (current->thread.system_call) {
 			regs->int_code = current->thread.system_call;
@@ -498,6 +500,7 @@ void do_signal(struct pt_regs *regs)
 		}
 		/* No longer in a system call */
 		clear_pt_regs_flag(regs, PIF_SYSCALL);
+		clear_pt_regs_flag(regs, PIF_SYSCALL_RESTART);
 		rseq_signal_deliver(&ksig, regs);
 		if (is_compat_task())
 			handle_signal32(&ksig, oldset, regs);
@@ -508,6 +511,7 @@ void do_signal(struct pt_regs *regs)
 
 	/* No handlers present - check for system call restart */
 	clear_pt_regs_flag(regs, PIF_SYSCALL);
+	clear_pt_regs_flag(regs, PIF_SYSCALL_RESTART);
 	if (current->thread.system_call) {
 		regs->int_code = current->thread.system_call;
 		switch (regs->gprs[2]) {
@@ -520,9 +524,9 @@ void do_signal(struct pt_regs *regs)
 		case -ERESTARTNOINTR:
 			/* Restart system call with magic TIF bit. */
 			regs->gprs[2] = regs->orig_gpr2;
-			set_pt_regs_flag(regs, PIF_SYSCALL);
+			set_pt_regs_flag(regs, PIF_SYSCALL_RESTART);
 			if (test_thread_flag(TIF_SINGLE_STEP))
-				clear_pt_regs_flag(regs, PIF_PER_TRAP);
+				clear_thread_flag(TIF_PER_TRAP);
 			break;
 		}
 	}