Thanks for resubmitting this; it was on my to-do list as well.
On 8/9/12 9:19 PM, Dong Hao wrote:
+static bool kvm_events_exist(const char *event)
+{
+ char evt_path[MAXPATHLEN];
+ int fd;
+
+ snprintf(evt_path, MAXPATHLEN, "%s/kvm/%s/id", tracing_events_path,
+ event);
+
+ fd = open(evt_path, O_RDONLY);
Use is_valid_tracepoint().
For consistency, it's worth adding a check for the other events too with
an appropriate config message. e.g.,:
https://lkml.org/lkml/2012/8/9/359
David
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