21 static void handle_signal(struct ksignal *ksig, struct pt_regs *regs)  in handle_signal()  argument
32 	if (PT_REGS_SYSCALL_NR(regs) >= 0) {  in handle_signal()
34 		switch (PT_REGS_SYSCALL_RET(regs)) {  in handle_signal()
37 			PT_REGS_SYSCALL_RET(regs) = -EINTR;  in handle_signal()
42 				PT_REGS_SYSCALL_RET(regs) = -EINTR;  in handle_signal()
47 			PT_REGS_RESTART_SYSCALL(regs);  in handle_signal()
48 			PT_REGS_ORIG_SYSCALL(regs) = PT_REGS_SYSCALL_NR(regs);  in handle_signal()
53 	sp = PT_REGS_SP(regs);  in handle_signal()
59 		err = setup_signal_stack_sc(sp, ksig, regs, oldset);  in handle_signal()
62 		err = setup_signal_stack_si(sp, ksig, regs, oldset);  in handle_signal()
67 static int kern_do_signal(struct pt_regs *regs)  in kern_do_signal()  argument
75 		handle_signal(&ksig, regs);  in kern_do_signal()
79 	if (!handled_sig && (PT_REGS_SYSCALL_NR(regs) >= 0)) {  in kern_do_signal()
81 		switch (PT_REGS_SYSCALL_RET(regs)) {  in kern_do_signal()
85 			PT_REGS_ORIG_SYSCALL(regs) = PT_REGS_SYSCALL_NR(regs);  in kern_do_signal()
86 			PT_REGS_RESTART_SYSCALL(regs);  in kern_do_signal()
89 			PT_REGS_ORIG_SYSCALL(regs) = __NR_restart_syscall;  in kern_do_signal()
90 			PT_REGS_RESTART_SYSCALL(regs);  in kern_do_signal()
105 			is_syscall(PT_REGS_IP(&current->thread.regs));  in kern_do_signal()
118 	return kern_do_signal(&current->thread.regs);  in do_signal()