summaryrefslogtreecommitdiffstats
path: root/arch/x86/kernel/nmi.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/kernel/nmi.c')
-rw-r--r--arch/x86/kernel/nmi.c9
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c
index e9bae4c..0920212 100644
--- a/arch/x86/kernel/nmi.c
+++ b/arch/x86/kernel/nmi.c
@@ -30,6 +30,9 @@
#include <asm/nmi.h>
#include <asm/x86_init.h>
+#define CREATE_TRACE_POINTS
+#include <trace/events/nmi.h>
+
struct nmi_desc {
spinlock_t lock;
struct list_head head;
@@ -108,11 +111,13 @@ static int __kprobes nmi_handle(unsigned int type, struct pt_regs *regs, bool b2
*/
list_for_each_entry_rcu(a, &desc->head, list) {
u64 before, delta, whole_msecs;
- int decimal_msecs;
+ int decimal_msecs, thishandled;
before = local_clock();
- handled += a->handler(type, regs);
+ thishandled = a->handler(type, regs);
+ handled += thishandled;
delta = local_clock() - before;
+ trace_nmi_handler(a->handler, (int)delta, thishandled);
if (delta < nmi_longest_ns)
continue;
OpenPOWER on IntegriCloud