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authorDon Zickus <dzickus@redhat.com>2010-02-06 02:47:03 (GMT)
committerIngo Molnar <mingo@elte.hu>2010-02-08 07:29:02 (GMT)
commite40b17208b6805be50ffe891878662b6076206b9 (patch)
tree69792633302099f5e0cfdba7e283f29710e8beb1 /arch/x86/kernel/traps.c
parent076dc4a65a6d99a16979e2c7917e669fb8c91ee5 (diff)
downloadlinux-e40b17208b6805be50ffe891878662b6076206b9.tar.xz
x86: Move notify_die from nmi.c to traps.c
In order to handle a new nmi_watchdog approach, I need to move the notify_die() routine out of nmi_watchdog_tick() and into default_do_nmi(). This lets me easily swap out the old nmi_watchdog with the new one with just a config change. The change probably makes sense from a high level perspective because the nmi_watchdog shouldn't be handling notify_die routines anyway. However, this move does change the semantics a little bit. Instead of checking on every nmi interrupt if the cpus are stuck, only check them on the nmi_watchdog interrupts. v2: Move notify_die call into #idef block Signed-off-by: Don Zickus <dzickus@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: gorcunov@gmail.com Cc: aris@redhat.com Cc: peterz@infradead.org LKML-Reference: <1265424425-31562-2-git-send-email-dzickus@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/traps.c')
-rw-r--r--arch/x86/kernel/traps.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c
index 1168e44..51ef893f 100644
--- a/arch/x86/kernel/traps.c
+++ b/arch/x86/kernel/traps.c
@@ -400,7 +400,12 @@ 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;
+
/*
* Ok, so this is none of the documented NMI sources,
* so it must be the NMI watchdog.