[PATCH] fuse: bump interface version

Change interface version to 7.4.

Following changes will need backward compatibility support, so store the minor
version returned by userspace.

Signed-off-by: Miklos Szeredi <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

fs/fuse/dev.c

@@ -178,6 +178,8 @@ static void request_end(struct fuse_conn *fc, struct fuse_req *req)
 		if (req->misc.init_in_out.major != FUSE_KERNEL_VERSION)
 			fc->conn_error = 1;
 
+		fc->minor = req->misc.init_in_out.minor;
+
 		/* After INIT reply is received other requests can go
 		   out.  So do (FUSE_MAX_OUTSTANDING - 1) number of
 		   up()s on outstanding_sem.  The last up() is done in

fs/fuse/fuse_i.h

@@ -272,6 +272,9 @@ struct fuse_conn {
 	/** Is create not implemented by fs? */
 	unsigned no_create : 1;
 
+	/** Negotiated minor version */
+	unsigned minor;
+
 	/** Backing dev info */
 	struct backing_dev_info bdi;
 };

include/linux/fuse.h

@@ -14,7 +14,7 @@
 #define FUSE_KERNEL_VERSION 7
 
 /** Minor version number of this interface */
-#define FUSE_KERNEL_MINOR_VERSION 3
+#define FUSE_KERNEL_MINOR_VERSION 4
 
 /** The node ID of the root inode */
 #define FUSE_ROOT_ID 1