oprofile: Implement performance counter multiplexing
[linux-2.6.git] / drivers / oprofile / oprofile_stats.c
index 3c2270a..77a57a6 100644 (file)
@@ -16,6 +16,9 @@
 #include "cpu_buffer.h"
 
 struct oprofile_stat_struct oprofile_stats;
+#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
+atomic_t multiplex_counter;
+#endif
 
 void oprofile_reset_stats(void)
 {
@@ -34,6 +37,9 @@ void oprofile_reset_stats(void)
        atomic_set(&oprofile_stats.sample_lost_no_mapping, 0);
        atomic_set(&oprofile_stats.event_lost_overflow, 0);
        atomic_set(&oprofile_stats.bt_lost_no_mapping, 0);
+#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
+       atomic_set(&multiplex_counter, 0);
+#endif
 }
 
 
@@ -76,4 +82,8 @@ void oprofile_create_stats_files(struct super_block *sb, struct dentry *root)
                &oprofile_stats.event_lost_overflow);
        oprofilefs_create_ro_atomic(sb, dir, "bt_lost_no_mapping",
                &oprofile_stats.bt_lost_no_mapping);
+#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
+       oprofilefs_create_ro_atomic(sb, dir, "multiplex_counter",
+               &multiplex_counter);
+#endif
 }