Fix: update writeback instrumentation for kernel 4.14

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

diff --git a/lttng-abi.c b/lttng-abi.c
index f2b207cbac95aa9ced52b603242784ca90caaaf3..77e5e9859e7f51099964f4002b932faf98531984 100644 (file)
--- a/lttng-abi.c
+++ b/lttng-abi.c
@@ -684,6 +684,7 @@ long lttng_metadata_ring_buffer_ioctl(struct file *filp,
                 */
                return -ENOSYS;
        }
+       case RING_BUFFER_FLUSH_EMPTY:   /* Fall-through. */
        case RING_BUFFER_FLUSH:
        {
                struct lttng_metadata_stream *stream = filp->private_data;
@@ -705,18 +706,6 @@ long lttng_metadata_ring_buffer_ioctl(struct file *filp,
 
                return put_u64(stream->version, arg);
        }
-       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;
        }
@@ -772,6 +761,7 @@ long lttng_metadata_ring_buffer_compat_ioctl(struct file *filp,
                 */
                return -ENOSYS;
        }
+       case RING_BUFFER_FLUSH_EMPTY:   /* Fall-through. */
        case RING_BUFFER_FLUSH:
        {
                struct lttng_metadata_stream *stream = filp->private_data;
@@ -793,18 +783,6 @@ long lttng_metadata_ring_buffer_compat_ioctl(struct file *filp,
 
                return put_u64(stream->version, arg);
        }
-       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;
        }