cifs: Move and expand MAX_SERVER_SIZE definition

MAX_SERVER_SIZE has been moved to cifs_mount.h and renamed
CIFS_NI_MAXHOST for clarity.  It has been expanded to 1024 as the
previous value of 16 was very short.
Signed-off-by: NScott Lovenberg <scott.lovenberg@gmail.com>
Reviewed-by: NJeff Layton <jlayton@redhat.com>
Signed-off-by: NSteve French <smfrench@gmail.com>

fs/cifs/cifsglob.h

@@ -42,8 +42,7 @@
 #define MAX_SES_INFO 2
 #define MAX_TCON_INFO 4
 
-#define MAX_TREE_SIZE (2 + MAX_SERVER_SIZE + 1 + CIFS_MAX_SHARE_LEN + 1)
-#define MAX_SERVER_SIZE 15
+#define MAX_TREE_SIZE (2 + CIFS_NI_MAXHOST + 1 + CIFS_MAX_SHARE_LEN + 1)
 
 #define CIFS_MIN_RCV_POOL 4
 

include/uapi/linux/cifs/cifs_mount.h

@@ -21,6 +21,7 @@
 #define CIFS_MAX_USERNAME_LEN   256 /* reasonable max for current servers */
 #define CIFS_MAX_PASSWORD_LEN   512 /* Windows max seems to be 256 wide chars */
 #define CIFS_MAX_SHARE_LEN      256 /* reasonable max share name length */
+#define CIFS_NI_MAXHOST        1024 /* max host name length (256 * 4 bytes) */
 
 
 #endif /* _CIFS_MOUNT_H */