X-Git-Url: http://git.lttng.org/?p=lttng-modules.git;a=blobdiff_plain;f=lib%2Fringbuffer%2Fvfs.h;h=e2bc401002fd0b70d5cc5c6409f7c825d7e8b7d8;hp=b2e5b1c84810a606b4368a84673bc8dca410ccb6;hb=d1344afaa0bc9707015a0ded9b312e43e58ed2d9;hpb=4d328377868e2f8fc2027c2492c3cd53615dffdc

diff --git a/lib/ringbuffer/vfs.h b/lib/ringbuffer/vfs.h
index b2e5b1c8..e2bc4010 100644
--- a/lib/ringbuffer/vfs.h
+++ b/lib/ringbuffer/vfs.h
@@ -123,6 +123,11 @@ ssize_t vfs_lib_ring_buffer_splice_read(struct file *in, loff_t *ppos,
 #define RING_BUFFER_SNAPSHOT_SAMPLE_POSITIONS	_IO(0xF6, 0x0E)
 /* Flush the current sub-buffer, even if empty. */
 #define RING_BUFFER_FLUSH_EMPTY			_IO(0xF6, 0x0F)
+/*
+ * Reset the position of what has been consumed from the metadata cache to 0
+ * so it can be read again.
+ */
+#define RING_BUFFER_METADATA_CACHE_DUMP		_IO(0xF6, 0x10)
 
 #ifdef CONFIG_COMPAT
 /* Get a snapshot of the current ring buffer producer and consumer positions */