Add cpu hotplug support for perf counters

[lttng-modules.git] / ltt-events.h

diff --git a/ltt-events.h b/ltt-events.h
index 6244e8c5a49df5427226f8d9d8163a9a237d5337..ec70eceadc69986627e2b02031a3b41324185c86 100644 (file)
--- a/ltt-events.h
+++ b/ltt-events.h
@@ -128,7 +128,8 @@ struct lttng_ctx_field {
        union {
                struct {
                        struct perf_event **e;  /* per-cpu array */
-                       struct list_head head;
+                       struct notifier_block nb;
+                       int hp_enable;
                        struct perf_event_attr *attr;
                } perf_counter;
        } u;
@@ -273,6 +274,8 @@ void ltt_event_put(const struct lttng_event_desc *desc);
 int ltt_probes_init(void);
 void ltt_probes_exit(void);
 struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx);
+void lttng_remove_context_field(struct lttng_ctx **ctx,
+                               struct lttng_ctx_field *field);
 void lttng_destroy_context(struct lttng_ctx *ctx);
 int lttng_add_pid_to_ctx(struct lttng_ctx **ctx);
 int lttng_add_comm_to_ctx(struct lttng_ctx **ctx);