537 	struct nmi_stats *nsp = this_cpu_ptr(&nmi_stats);  in DEFINE_IDTENTRY_RAW()  local
545 		raw_atomic_long_inc(&nsp->idt_calls);  in DEFINE_IDTENTRY_RAW()
562 		WRITE_ONCE(nsp->idt_seq, nsp->idt_seq + 1);  in DEFINE_IDTENTRY_RAW()
563 		WARN_ON_ONCE(!(nsp->idt_seq & 0x1));  in DEFINE_IDTENTRY_RAW()
564 		WRITE_ONCE(nsp->recv_jiffies, jiffies);  in DEFINE_IDTENTRY_RAW()
580 		WRITE_ONCE(nsp->idt_ignored, nsp->idt_ignored + 1);  in DEFINE_IDTENTRY_RAW()
583 			WRITE_ONCE(nsp->idt_nmi_seq, nsp->idt_nmi_seq + 1);  in DEFINE_IDTENTRY_RAW()
584 			WARN_ON_ONCE(!(nsp->idt_nmi_seq & 0x1));  in DEFINE_IDTENTRY_RAW()
588 			WRITE_ONCE(nsp->idt_nmi_seq, nsp->idt_nmi_seq + 1);  in DEFINE_IDTENTRY_RAW()
589 			WARN_ON_ONCE(nsp->idt_nmi_seq & 0x1);  in DEFINE_IDTENTRY_RAW()
602 		WRITE_ONCE(nsp->idt_seq, nsp->idt_seq + 1);  in DEFINE_IDTENTRY_RAW()
603 		WARN_ON_ONCE(nsp->idt_seq & 0x1);  in DEFINE_IDTENTRY_RAW()
604 		WRITE_ONCE(nsp->recv_jiffies, jiffies);  in DEFINE_IDTENTRY_RAW()
624 /* +--------- nsp->idt_seq_snap & 0x1: CPU is in NMI handler.		*/
626 /* | | +--- nsp->idt_calls_snap != atomic_long_read(&nsp->idt_calls):	*/
643 	struct nmi_stats *nsp;  in nmi_backtrace_stall_snap()  local
646 		nsp = per_cpu_ptr(&nmi_stats, cpu);  in nmi_backtrace_stall_snap()
647 		nsp->idt_seq_snap = READ_ONCE(nsp->idt_seq);  in nmi_backtrace_stall_snap()
648 		nsp->idt_nmi_seq_snap = READ_ONCE(nsp->idt_nmi_seq);  in nmi_backtrace_stall_snap()
649 		nsp->idt_ignored_snap = READ_ONCE(nsp->idt_ignored);  in nmi_backtrace_stall_snap()
650 		nsp->idt_calls_snap = atomic_long_read(&nsp->idt_calls);  in nmi_backtrace_stall_snap()
663 	struct nmi_stats *nsp;  in nmi_backtrace_stall_check()  local
666 		nsp = per_cpu_ptr(&nmi_stats, cpu);  in nmi_backtrace_stall_check()
669 		nmi_seq = READ_ONCE(nsp->idt_nmi_seq);  in nmi_backtrace_stall_check()
670 		if (nsp->idt_nmi_seq_snap + 1 == nmi_seq && (nmi_seq & 0x1)) {  in nmi_backtrace_stall_check()
672 		} else if ((nsp->idt_nmi_seq_snap & 0x1) != (nmi_seq & 0x1)) {  in nmi_backtrace_stall_check()
675 			idx = ((nsp->idt_seq_snap & 0x1) << 2) |  in nmi_backtrace_stall_check()
677 			      (nsp->idt_calls_snap != atomic_long_read(&nsp->idt_calls));  in nmi_backtrace_stall_check()
679 			if (nsp->idt_ignored_snap != READ_ONCE(nsp->idt_ignored) && (idx & 0x1))  in nmi_backtrace_stall_check()
683 			else if (nsp->idt_nmi_seq_snap + 1 == nmi_seq)  in nmi_backtrace_stall_check()
687 			 __func__, cpu, msgp, modp, msghp, j - READ_ONCE(nsp->recv_jiffies));  in nmi_backtrace_stall_check()