X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=lib%2Fringbuffer%2Fvfs.h;h=26cda485e8f8f82c3aadf3bd969932b916cc0156;hb=122c63cb431001238b077b77e88534e18080136b;hp=2061156dd1b19aba0ebab7cf01815ab4e7645f78;hpb=28926981a861e8ded0f9967588873c8cd309227f;p=lttng-modules.git

diff --git a/lib/ringbuffer/vfs.h b/lib/ringbuffer/vfs.h
index 2061156d..26cda485 100644
--- a/lib/ringbuffer/vfs.h
+++ b/lib/ringbuffer/vfs.h
@@ -114,6 +114,12 @@ ssize_t vfs_lib_ring_buffer_splice_read(struct file *in, loff_t *ppos,
 #define RING_BUFFER_METADATA_CACHE_DUMP		_IO(0xF6, 0x10)
 /* Clear ring buffer content. */
 #define RING_BUFFER_CLEAR			_IO(0xF6, 0x11)
+/*
+ * Get next metadata subbuffer, returning a flag indicating whether the
+ * metadata is guaranteed to be in a consistent state at the end of this
+ * sub-buffer (can be parsed).
+ */
+#define RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK	_IOR(0xF6, 0x12, uint32_t)
 
 #ifdef CONFIG_COMPAT
 /* Get a snapshot of the current ring buffer producer and consumer positions */
@@ -161,6 +167,13 @@ ssize_t vfs_lib_ring_buffer_splice_read(struct file *in, loff_t *ppos,
 /* Clear ring buffer content. */
 #define RING_BUFFER_COMPAT_CLEAR			\
 	RING_BUFFER_CLEAR
+/*
+ * Get next metadata subbuffer, returning a flag indicating whether the
+ * metadata is guaranteed to be in a consistent state at the end of this
+ * sub-buffer (can be parsed).
+ */
+#define RING_BUFFER_COMPAT_GET_NEXT_SUBBUF_METADATA_CHECK \
+	RING_BUFFER_GET_NEXT_SUBBUF_METADATA_CHECK
 #endif /* CONFIG_COMPAT */
 
 #endif /* _LIB_RING_BUFFER_VFS_H */