lockup_detector: Combine nmi_watchdog and softlockup detector

[mirror_ubuntu-bionic-kernel.git] / arch / x86 / kernel / traps.c

diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 1168e44541887e441e0cb8422cdaf67e86bfe4e5..bd347c2b34dc6b53f2b5d9e0293f534446ba271e 100644 (file)
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -400,7 +400,13 @@ static notrace __kprobes void default_do_nmi(struct pt_regs *regs)
                if (notify_die(DIE_NMI_IPI, "nmi_ipi", regs, reason, 2, SIGINT)
                                                                == NOTIFY_STOP)
                        return;
+
 #ifdef CONFIG_X86_LOCAL_APIC
+               if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT)
+                                                       == NOTIFY_STOP)
+                       return;
+
+#ifndef CONFIG_LOCKUP_DETECTOR
                /*
                 * Ok, so this is none of the documented NMI sources,
                 * so it must be the NMI watchdog.
@@ -408,6 +414,7 @@ static notrace __kprobes void default_do_nmi(struct pt_regs *regs)
                if (nmi_watchdog_tick(regs, reason))
                        return;
                if (!do_nmi_callback(regs, cpu))
+#endif /* !CONFIG_LOCKUP_DETECTOR */
                        unknown_nmi_error(reason, regs);
 #else
                unknown_nmi_error(reason, regs);