CIFS: Simplify mount code for further shared sb capability

Reorganize code to get mount option at first and when get a superblock.
This lets us use shared superblock model further for equal mounts.

Signed-off-by: Pavel Shilovsky <piastry@etersoft.ru>
Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 3738a32..fdc0dc2 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -150,8 +150,14 @@
 extern int set_cifs_acl(struct cifs_ntsd *, __u32, struct inode *,
 				const char *);
 
+extern void cifs_setup_cifs_sb(struct smb_vol *pvolume_info,
+			       struct cifs_sb_info *cifs_sb);
+extern int cifs_match_super(struct super_block *, void *);
+extern void cifs_cleanup_volume_info(struct smb_vol **pvolume_info);
+extern int cifs_setup_volume_info(struct smb_vol **pvolume_info,
+				  char *mount_data, const char *devname);
 extern int cifs_mount(struct super_block *, struct cifs_sb_info *,
-			const char *);
+		      struct smb_vol *, const char *);
 extern int cifs_umount(struct super_block *, struct cifs_sb_info *);
 extern void cifs_dfs_release_automount_timer(void);
 void cifs_proc_init(void);