[CIFS] Fix paths when share is in DFS to include proper prefix

Some versions of Samba (3.2-pre e.g.) are stricter about checking to make sure that
paths in DFS name spaces are sent in the form \\server\share\dir\subdir ...
instead of \dir\subdir

Acked-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 3 insertions, 23 deletions

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 7c2e5ea03305..d5747e30f1c9 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -1419,27 +1419,6 @@ find_unc(__be32 new_target_ip_addr, char *uncName, char *userName)
 }
 
 int
-connect_to_dfs_path(int xid, struct cifsSesInfo *pSesInfo,
-                    const char *old_path, const struct nls_table *nls_codepage,
-                    int remap)
-{
-        struct dfs_info3_param *referrals = NULL;
-        unsigned int num_referrals;
-        int rc = 0;
-
-        rc = get_dfs_path(xid, pSesInfo, old_path, nls_codepage,
-                        &num_referrals, &referrals, remap);
-
-        /* BB Add in code to: if valid refrl, if not ip address contact
-                the helper that resolves tcp names, mount to it, try to
-                tcon to it unmount it if fail */
-
-        kfree(referrals);
-
-        return rc;
-}
-
-int
 get_dfs_path(int xid, struct cifsSesInfo *pSesInfo, const char *old_path,
              const struct nls_table *nls_codepage, unsigned int *pnum_referrals,
              struct dfs_info3_param **preferrals, int remap)
@@ -2161,10 +2140,11 @@ cifs_mount(struct super_block *sb, struct cifs_sb_info *cifs_sb,
                                 if ((strchr(volume_info.UNC + 3, '\\') == NULL)
                                     && (strchr(volume_info.UNC + 3, '/') ==
                                         NULL)) {
-                                        rc = connect_to_dfs_path(xid, pSesInfo,
+/*                                      rc = connect_to_dfs_path(xid, pSesInfo,
                                                 "", cifs_sb->local_nls,
                                                 cifs_sb->mnt_cifs_flags &
-                                                  CIFS_MOUNT_MAP_SPECIAL_CHR);
+                                                  CIFS_MOUNT_MAP_SPECIAL_CHR);*/
+                                        cFYI(1, ("DFS root not supported"));
                                         rc = -ENODEV;
                                         goto out;
                                 } else {