Version 2.7.7

[lttng-modules.git] / lttng-abi.c

diff --git a/lttng-abi.c b/lttng-abi.c
index cc3d4b5bf37765a50f8b8860b28b22e9639a241e..9400f5374aad7ce1510e7db59bcc423568b50448 100644 (file)
--- a/lttng-abi.c
+++ b/lttng-abi.c
@@ -684,6 +684,18 @@ long lttng_metadata_ring_buffer_ioctl(struct file *filp,
                        goto err;
                break;
        }
+       case RING_BUFFER_SNAPSHOT:
+       {
+               /*
+                * Force the buffer to quiescent so the ring buffer
+                * don't attempt to perform a SWITCH_FLUSH, which would
+                * desynchronize the client accounting of the amount of
+                * data available in the buffer from the ring buffer
+                * view.
+                */
+               buf->quiescent = true;
+               break;
+       }
        default:
                break;
        }
@@ -754,6 +766,18 @@ long lttng_metadata_ring_buffer_compat_ioctl(struct file *filp,
                        goto err;
                break;
        }
+       case RING_BUFFER_SNAPSHOT:
+       {
+               /*
+                * Force the buffer to quiescent so the ring buffer
+                * don't attempt to perform a SWITCH_FLUSH, which would
+                * desynchronize the client accounting of the amount of
+                * data available in the buffer from the ring buffer
+                * view.
+                */
+               buf->quiescent = true;
+               break;
+       }
        default:
                break;
        }