224 static nokprobe_inline void save_previous_kprobe(struct kprobe_ctlblk *kcb)  in save_previous_kprobe()  argument
226 	kcb->prev_kprobe.kp = kprobe_running();  in save_previous_kprobe()
227 	kcb->prev_kprobe.status = kcb->kprobe_status;  in save_previous_kprobe()
228 	kcb->prev_kprobe.saved_msr = kcb->kprobe_saved_msr;  in save_previous_kprobe()
231 static nokprobe_inline void restore_previous_kprobe(struct kprobe_ctlblk *kcb)  in restore_previous_kprobe()  argument
233 	__this_cpu_write(current_kprobe, kcb->prev_kprobe.kp);  in restore_previous_kprobe()
234 	kcb->kprobe_status = kcb->prev_kprobe.status;  in restore_previous_kprobe()
235 	kcb->kprobe_saved_msr = kcb->prev_kprobe.saved_msr;  in restore_previous_kprobe()
239 				struct kprobe_ctlblk *kcb)  in set_current_kprobe()  argument
242 	kcb->kprobe_saved_msr = regs->msr;  in set_current_kprobe()
301 	struct kprobe_ctlblk *kcb;  in kprobe_handler()  local
315 	kcb = get_kprobe_ctlblk();  in kprobe_handler()
348 		if (kcb->kprobe_status == KPROBE_HIT_SS && is_trap(insn)) {  in kprobe_handler()
352 				kcb->kprobe_saved_msr);  in kprobe_handler()
362 		save_previous_kprobe(kcb);  in kprobe_handler()
363 		set_current_kprobe(p, regs, kcb);  in kprobe_handler()
365 		kcb->kprobe_status = KPROBE_REENTER;  in kprobe_handler()
370 				restore_previous_kprobe(kcb);  in kprobe_handler()
379 	kcb->kprobe_status = KPROBE_HIT_ACTIVE;  in kprobe_handler()
380 	set_current_kprobe(p, regs, kcb);  in kprobe_handler()
395 			kcb->kprobe_status = KPROBE_HIT_SSDONE;  in kprobe_handler()
402 	kcb->kprobe_status = KPROBE_HIT_SS;  in kprobe_handler()
466 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();  in kprobe_post_handler()  local
476 	if ((kcb->kprobe_status != KPROBE_REENTER) && cur->post_handler) {  in kprobe_post_handler()
477 		kcb->kprobe_status = KPROBE_HIT_SSDONE;  in kprobe_post_handler()
483 	regs_set_return_msr(regs, regs->msr | kcb->kprobe_saved_msr);  in kprobe_post_handler()
486 	if (kcb->kprobe_status == KPROBE_REENTER) {  in kprobe_post_handler()
487 		restore_previous_kprobe(kcb);  in kprobe_post_handler()
509 	struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();  in kprobe_fault_handler()  local
512 	switch(kcb->kprobe_status) {  in kprobe_fault_handler()
526 			kcb->kprobe_saved_msr);  in kprobe_fault_handler()
527 		if (kcb->kprobe_status == KPROBE_REENTER)  in kprobe_fault_handler()
528 			restore_previous_kprobe(kcb);  in kprobe_fault_handler()