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-rw-r--r--include/linux/nbd.h9
1 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/nbd.h b/include/linux/nbd.h
index d146ca10c0f..4b8ed5a1cfb 100644
--- a/include/linux/nbd.h
+++ b/include/linux/nbd.h
@@ -27,6 +27,7 @@
#define NBD_SET_SIZE_BLOCKS _IO( 0xab, 7 )
#define NBD_DISCONNECT _IO( 0xab, 8 )
#define NBD_SET_TIMEOUT _IO( 0xab, 9 )
+#define NBD_SET_FLAGS _IO( 0xab, 10)
enum {
NBD_CMD_READ = 0,
@@ -34,6 +35,10 @@ enum {
NBD_CMD_DISC = 2
};
+/* 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_cmd(req) ((req)->cmd[0])
/* userspace doesn't need the nbd_device structure */
@@ -42,10 +47,6 @@ enum {
#include <linux/wait.h>
#include <linux/mutex.h>
-/* values for flags field */
-#define NBD_READ_ONLY 0x0001
-#define NBD_WRITE_NOCHK 0x0002
-
struct request;
struct nbd_device {