X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=lib%2Fringbuffer%2Fring_buffer_vfs.c;h=97be835655a8c0f665526f8471aa1030e140b561;hb=4b691a7da344d131db8786135f60ddca95956457;hp=15da212d3fa313e3b3a027b2638132cacbb1db40;hpb=7cf44d034bdda1896f6b0c6374c90c06d45ee4fd;p=lttng-modules.git

diff --git a/lib/ringbuffer/ring_buffer_vfs.c b/lib/ringbuffer/ring_buffer_vfs.c
index 15da212d..97be8356 100644
--- a/lib/ringbuffer/ring_buffer_vfs.c
+++ b/lib/ringbuffer/ring_buffer_vfs.c
@@ -191,17 +191,11 @@ long lib_ring_buffer_ioctl(struct file *filp, unsigned int cmd,
 
 	switch (cmd) {
 	case RING_BUFFER_SNAPSHOT:
-		/*
-		 * First, ensure we perform a "final" flush onto the
-		 * stream.  This will ensure we create a packet of
-		 * padding if we encounter an empty packet. This ensures
-		 * the time-stamps right before the snapshot is used as
-		 * end of packet timestamp.
-		 */
-		if (!buf->quiescent)
-			lib_ring_buffer_switch_remote_empty(buf);
 		return lib_ring_buffer_snapshot(buf, &buf->cons_snapshot,
 					    &buf->prod_snapshot);
+	case RING_BUFFER_SNAPSHOT_SAMPLE_POSITIONS:
+		return lib_ring_buffer_snapshot_sample_positions(buf,
+				&buf->cons_snapshot, &buf->prod_snapshot);
 	case RING_BUFFER_SNAPSHOT_GET_CONSUMED:
 		return put_ulong(buf->cons_snapshot, arg);
 	case RING_BUFFER_SNAPSHOT_GET_PRODUCED:
@@ -279,6 +273,9 @@ long lib_ring_buffer_ioctl(struct file *filp, unsigned int cmd,
 	case RING_BUFFER_FLUSH:
 		lib_ring_buffer_switch_remote(buf);
 		return 0;
+	case RING_BUFFER_FLUSH_EMPTY:
+		lib_ring_buffer_switch_remote_empty(buf);
+		return 0;
 	default:
 		return -ENOIOCTLCMD;
 	}
@@ -329,17 +326,11 @@ long lib_ring_buffer_compat_ioctl(struct file *filp, unsigned int cmd,
 
 	switch (cmd) {
 	case RING_BUFFER_COMPAT_SNAPSHOT:
-		/*
-		 * First, ensure we perform a "final" flush onto the
-		 * stream.  This will ensure we create a packet of
-		 * padding if we encounter an empty packet. This ensures
-		 * the time-stamps right before the snapshot is used as
-		 * end of packet timestamp.
-		 */
-		if (!buf->quiescent)
-			lib_ring_buffer_switch_remote_empty(buf);
 		return lib_ring_buffer_snapshot(buf, &buf->cons_snapshot,
 						&buf->prod_snapshot);
+	case RING_BUFFER_COMPAT_SNAPSHOT_SAMPLE_POSITIONS:
+		return lib_ring_buffer_snapshot_sample_positions(buf,
+				&buf->cons_snapshot, &buf->prod_snapshot);
 	case RING_BUFFER_COMPAT_SNAPSHOT_GET_CONSUMED:
 		return compat_put_ulong(buf->cons_snapshot, arg);
 	case RING_BUFFER_COMPAT_SNAPSHOT_GET_PRODUCED:
@@ -433,6 +424,9 @@ long lib_ring_buffer_compat_ioctl(struct file *filp, unsigned int cmd,
 	case RING_BUFFER_COMPAT_FLUSH:
 		lib_ring_buffer_switch_remote(buf);
 		return 0;
+	case RING_BUFFER_COMPAT_FLUSH_EMPTY:
+		lib_ring_buffer_switch_remote_empty(buf);
+		return 0;
 	default:
 		return -ENOIOCTLCMD;
 	}