Fix teardown deadlock

[lttng-modules.git] / lib / ringbuffer / frontend_types.h

diff --git a/lib/ringbuffer/frontend_types.h b/lib/ringbuffer/frontend_types.h
index d269c00a685221086448b249724326f6acc5b81f..0fa2dddfce5efb9339fac01fe77a869786d303f9 100644 (file)
--- a/lib/ringbuffer/frontend_types.h
+++ b/lib/ringbuffer/frontend_types.h
@@ -16,6 +16,7 @@
  * Dual LGPL v2.1/GPL v2 license.
  */
 
+#include <linux/kref.h>
 #include "../../wrapper/ringbuffer/config.h"
 #include "../../wrapper/ringbuffer/backend_types.h"
 #include "../../wrapper/prio_heap.h"   /* For per-CPU read-side iterator */
@@ -62,7 +63,7 @@ struct channel {
        int hp_iter_enable:1;                   /* Enable hp iter notif. */
        wait_queue_head_t read_wait;            /* reader wait queue */
        struct channel_iter iter;               /* Channel read-side iterator */
-       atomic_long_t read_ref;                 /* Reader reference count */
+       struct kref ref;                        /* Reference count */
 };
 
 /* Per-subbuffer commit counters used on the hot path */