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-rw-r--r--include/uapi/linux/btrfs.h20
1 files changed, 19 insertions, 1 deletions
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h
index fa3a5f9338fc..5e39e859a848 100644
--- a/include/uapi/linux/btrfs.h
+++ b/include/uapi/linux/btrfs.h
@@ -412,7 +412,25 @@ struct btrfs_ioctl_received_subvol_args {
* search of clone sources doesn't find an extent. UPDATE_EXTENT
* commands will be sent instead of WRITE commands.
*/
-#define BTRFS_SEND_FLAG_NO_FILE_DATA 0x1
+#define BTRFS_SEND_FLAG_NO_FILE_DATA 0x1
+
+/*
+ * Do not add the leading stream header. Used when multiple snapshots
+ * are sent back to back.
+ */
+#define BTRFS_SEND_FLAG_OMIT_STREAM_HEADER 0x2
+
+/*
+ * Omit the command at the end of the stream that indicated the end
+ * of the stream. This option is used when multiple snapshots are
+ * sent back to back.
+ */
+#define BTRFS_SEND_FLAG_OMIT_END_CMD 0x4
+
+#define BTRFS_SEND_FLAG_MASK \
+ (BTRFS_SEND_FLAG_NO_FILE_DATA | \
+ BTRFS_SEND_FLAG_OMIT_STREAM_HEADER | \
+ BTRFS_SEND_FLAG_OMIT_END_CMD)
struct btrfs_ioctl_send_args {
__s64 send_fd; /* in */
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