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-rw-r--r--include/uapi/linux/nbd.h9
1 files changed, 5 insertions, 4 deletions
diff --git a/include/uapi/linux/nbd.h b/include/uapi/linux/nbd.h
index e08e413d5f71..c91c642ea900 100644
--- a/include/uapi/linux/nbd.h
+++ b/include/uapi/linux/nbd.h
@@ -38,11 +38,12 @@ enum {
};
/* values for flags field */
-#define NBD_FLAG_HAS_FLAGS (1 << 0) /* nbd-server supports flags */
-#define NBD_FLAG_READ_ONLY (1 << 1) /* device is read-only */
-#define NBD_FLAG_SEND_FLUSH (1 << 2) /* can flush writeback cache */
+#define NBD_FLAG_HAS_FLAGS (1 << 0) /* nbd-server supports flags */
+#define NBD_FLAG_READ_ONLY (1 << 1) /* device is read-only */
+#define NBD_FLAG_SEND_FLUSH (1 << 2) /* can flush writeback cache */
/* there is a gap here to match userspace */
-#define NBD_FLAG_SEND_TRIM (1 << 5) /* send trim/discard */
+#define NBD_FLAG_SEND_TRIM (1 << 5) /* send trim/discard */
+#define NBD_FLAG_CAN_MULTI_CONN (1 << 8) /* Server supports multiple connections per export. */
/* userspace doesn't need the nbd_device structure */