diff options
| author | Don Zickus <dzickus@redhat.com> | 2006-09-26 10:52:26 +0200 |
|---|---|---|
| committer | Andi Kleen <andi@basil.nowhere.org> | 2006-09-26 10:52:26 +0200 |
| commit | 3adbbcce9a49b900d4cc118cdccfdefa78bf1afb (patch) | |
| tree | 3163758ed23d973a54b396593957c63470f39a0d /arch/x86_64/kernel/traps.c | |
| parent | b7471c6da94d30d3deadc55986cc38d1ff57f9ca (diff) | |
[PATCH] x86: Cleanup NMI interrupt path
This patch cleans up the NMI interrupt path. Instead of being gated by if
the 'nmi callback' is set, the interrupt handler now calls everyone who is
registered on the die_chain and additionally checks the nmi watchdog,
reseting it if enabled. This allows more subsystems to hook into the NMI if
they need to (without being block by set_nmi_callback).
Signed-off-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/x86_64/kernel/traps.c')
| -rw-r--r-- | arch/x86_64/kernel/traps.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86_64/kernel/traps.c b/arch/x86_64/kernel/traps.c index b1249774d1e..42bc070fdf1 100644 --- a/arch/x86_64/kernel/traps.c +++ b/arch/x86_64/kernel/traps.c @@ -781,12 +781,12 @@ asmlinkage __kprobes void default_do_nmi(struct pt_regs *regs) * Ok, so this is none of the documented NMI sources, * so it must be the NMI watchdog. */ - if (nmi_watchdog > 0) { - nmi_watchdog_tick(regs,reason); + if (nmi_watchdog_tick(regs,reason)) return; - } + if (!do_nmi_callback(regs,cpu)) #endif - unknown_nmi_error(reason, regs); + unknown_nmi_error(reason, regs); + return; } if (notify_die(DIE_NMI, "nmi", regs, reason, 2, SIGINT) == NOTIFY_STOP) |