SoW-2019-0002: Dynamic Snapshot

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

diff --git a/lib/ringbuffer/frontend_types.h b/lib/ringbuffer/frontend_types.h
index 0d340afb50b3de8f32b9519823fe817ac2c242a2..9cfde8fa328823a38463ba42ef9213f6277a6a70 100644 (file)
--- a/lib/ringbuffer/frontend_types.h
+++ b/lib/ringbuffer/frontend_types.h
@@ -13,6 +13,7 @@
 #define _LIB_RING_BUFFER_FRONTEND_TYPES_H
 
 #include <linux/kref.h>
+#include <linux/irq_work.h>
 #include <wrapper/ringbuffer/config.h>
 #include <wrapper/ringbuffer/backend_types.h>
 #include <lib/prio_heap/lttng_prio_heap.h>     /* For per-CPU read-side iterator */
@@ -66,6 +67,7 @@ struct channel {
        struct notifier_block tick_nohz_notifier; /* CPU nohz notifier */
        wait_queue_head_t read_wait;            /* reader wait queue */
        wait_queue_head_t hp_wait;              /* CPU hotplug wait queue */
+       struct irq_work wakeup_pending;         /* Pending wakeup irq work */
        int finalized;                          /* Has channel been finalized */
        struct channel_iter iter;               /* Channel read-side iterator */
        struct kref ref;                        /* Reference count */
@@ -146,6 +148,7 @@ struct lib_ring_buffer {
        union v_atomic records_overrun; /* Number of overwritten records */
        wait_queue_head_t read_wait;    /* reader buffer-level wait queue */
        wait_queue_head_t write_wait;   /* writer buffer-level wait queue (for metadata only) */
+       struct irq_work wakeup_pending;         /* Pending wakeup irq work */
        int finalized;                  /* buffer has been finalized */
        struct timer_list switch_timer; /* timer for periodical switch */
        struct timer_list read_timer;   /* timer for read poll */