517 save_previous_kprobe(struct kprobe_ctlblk *kcb)  in save_previous_kprobe()  argument
519 	kcb->prev_kprobe.kp = kprobe_running();  in save_previous_kprobe()
520 	kcb->prev_kprobe.status = kcb->kprobe_status;  in save_previous_kprobe()
521 	kcb->prev_kprobe.old_flags = kcb->kprobe_old_flags;  in save_previous_kprobe()
522 	kcb->prev_kprobe.saved_flags = kcb->kprobe_saved_flags;  in save_previous_kprobe()
526 restore_previous_kprobe(struct kprobe_ctlblk *kcb)  in restore_previous_kprobe()  argument
528 	__this_cpu_write(current_kprobe, kcb->prev_kprobe.kp);  in restore_previous_kprobe()
529 	kcb->kprobe_status = kcb->prev_kprobe.status;  in restore_previous_kprobe()
530 	kcb->kprobe_old_flags = kcb->prev_kprobe.old_flags;  in restore_previous_kprobe()
531 	kcb->kprobe_saved_flags = kcb->prev_kprobe.saved_flags;  in restore_previous_kprobe()
536 		   struct kprobe_ctlblk *kcb)  in set_current_kprobe()  argument
539 	kcb->kprobe_saved_flags = kcb->kprobe_old_flags  in set_current_kprobe()
542 		kcb->kprobe_saved_flags &= ~X86_EFLAGS_IF;  in set_current_kprobe()
578 			     struct kprobe_ctlblk *kcb, int reenter)  in setup_singlestep()  argument
598 		save_previous_kprobe(kcb);  in setup_singlestep()
599 		set_current_kprobe(p, regs, kcb);  in setup_singlestep()
600 		kcb->kprobe_status = KPROBE_REENTER;  in setup_singlestep()
602 		kcb->kprobe_status = KPROBE_HIT_SS;  in setup_singlestep()
621 			  struct kprobe_ctlblk *kcb)  in reenter_kprobe()  argument
623 	switch (kcb->kprobe_status) {  in reenter_kprobe()
628 		setup_singlestep(p, regs, kcb, 1);  in reenter_kprobe()
658 	struct kprobe_ctlblk *kcb;  in kprobe_int3_handler()  local
670 	kcb = get_kprobe_ctlblk();  in kprobe_int3_handler()
675 			if (reenter_kprobe(p, regs, kcb))  in kprobe_int3_handler()
678 			set_current_kprobe(p, regs, kcb);  in kprobe_int3_handler()
679 			kcb->kprobe_status = KPROBE_HIT_ACTIVE;  in kprobe_int3_handler()
689 				setup_singlestep(p, regs, kcb, 0);  in kprobe_int3_handler()
758 	struct kprobe_ctlblk *kcb;  in trampoline_handler()  local
775 	kcb = get_kprobe_ctlblk();  in trampoline_handler()
777 	kcb->kprobe_status = KPROBE_HIT_ACTIVE;  in trampoline_handler()
908 			     struct kprobe_ctlblk *kcb)  in resume_execution()  argument
922 		*tos |= kcb->kprobe_old_flags;  in resume_execution()
977 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();  in kprobe_debug_handler()  local
982 	resume_execution(cur, regs, kcb);  in kprobe_debug_handler()
983 	regs->flags |= kcb->kprobe_saved_flags;  in kprobe_debug_handler()
985 	if ((kcb->kprobe_status != KPROBE_REENTER) && cur->post_handler) {  in kprobe_debug_handler()
986 		kcb->kprobe_status = KPROBE_HIT_SSDONE;  in kprobe_debug_handler()
991 	if (kcb->kprobe_status == KPROBE_REENTER) {  in kprobe_debug_handler()
992 		restore_previous_kprobe(kcb);  in kprobe_debug_handler()
1012 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();  in kprobe_fault_handler()  local
1016 		WARN_ON(kcb->kprobe_status != KPROBE_HIT_SS &&  in kprobe_fault_handler()
1017 			kcb->kprobe_status != KPROBE_REENTER);  in kprobe_fault_handler()
1037 		regs->flags |= kcb->kprobe_old_flags;  in kprobe_fault_handler()
1039 		if (kcb->kprobe_status == KPROBE_REENTER)  in kprobe_fault_handler()
1040 			restore_previous_kprobe(kcb);  in kprobe_fault_handler()
1043 	} else if (kcb->kprobe_status == KPROBE_HIT_ACTIVE ||  in kprobe_fault_handler()
1044 		   kcb->kprobe_status == KPROBE_HIT_SSDONE) {  in kprobe_fault_handler()