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-rw-r--r--include/sound/core.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/sound/core.h b/include/sound/core.h
index 0e14b7a3e67b..ac8b692b69b4 100644
--- a/include/sound/core.h
+++ b/include/sound/core.h
@@ -120,6 +120,9 @@ struct snd_card {
int sync_irq; /* assigned irq, used for PCM sync */
wait_queue_head_t remove_sleep;
+ size_t total_pcm_alloc_bytes; /* total amount of allocated buffers */
+ struct mutex memory_mutex; /* protection for the above */
+
#ifdef CONFIG_PM
unsigned int power_state; /* power state */
wait_queue_head_t power_sleep;