.llseek = default_llseek,
};
+#ifdef CONFIG_PARAVIRT_SPINLOCKS
+#include <asm/paravirt.h>
+
+static bool __init skip_lockevent(const char *name)
+{
+ static int pv_on __initdata = -1;
+
+ if (pv_on < 0)
+ pv_on = !pv_is_native_spin_unlock();
+ /*
+ * Skip PV qspinlock events on bare metal.
+ */
+ if (!pv_on && !memcmp(name, "pv_", 3))
+ return true;
+ return false;
+}
+#else
+static inline bool skip_lockevent(const char *name)
+{
+ return false;
+}
+#endif
+
/*
* Initialize debugfs for the locking event counts.
*/
* root is allowed to do the read/write to limit impact to system
* performance.
*/
- for (i = 0; i < lockevent_num; i++)
+ for (i = 0; i < lockevent_num; i++) {
+ if (skip_lockevent(lockevent_names[i]))
+ continue;
if (!debugfs_create_file(lockevent_names[i], 0400, d_counts,
(void *)(long)i, &fops_lockevent))
goto fail_undo;
+ }
if (!debugfs_create_file(lockevent_names[LOCKEVENT_reset_cnts], 0200,
d_counts, (void *)(long)LOCKEVENT_reset_cnts,