4 files changed, 21 insertions, 8 deletions

diff --git a/fs/cifs/cifsproto.h b/fs/cifs/cifsproto.h
index 6928c24d1d42..5646727e33f5 100644
--- a/fs/cifs/cifsproto.h
+++ b/fs/cifs/cifsproto.h
@@ -388,4 +388,5 @@ extern int CIFSSMBSetPosixACL(const int xid, struct cifsTconInfo *tcon,
                 const struct nls_table *nls_codepage, int remap_special_chars);
 extern int CIFSGetExtAttr(const int xid, struct cifsTconInfo *tcon,
                         const int netfid, __u64 *pExtAttrBits, __u64 *pMask);
+extern void cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb);
 #endif                  /* _CIFSPROTO_H */
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 5e2492535daa..cababd8a52df 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -512,13 +512,10 @@ int cifs_get_inode_info(struct inode **pinode,
                                         cifs_sb->local_nls,
                                         cifs_sb->mnt_cifs_flags &
                                                 CIFS_MOUNT_MAP_SPECIAL_CHR);
-                        if (rc1) {
+                        if (rc1 || !fattr.cf_uniqueid) {
                                 cFYI(1, ("GetSrvInodeNum rc %d", rc1));
                                 fattr.cf_uniqueid = iunique(sb, ROOT_I);
-                                /* disable serverino if call not supported */
-                                if (rc1 == -EINVAL)
-                                        cifs_sb->mnt_cifs_flags &=
-                                                        ~CIFS_MOUNT_SERVER_INUM;
+                                cifs_autodisable_serverino(cifs_sb);
                         }
                 } else {
                         fattr.cf_uniqueid = iunique(sb, ROOT_I);
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index 0241b25ac33f..1e25efcb55c8 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -715,3 +715,17 @@ cifsConvertToUCS(__le16 *target, const char *source, int maxlen,
 ctoUCS_out:
         return i;
 }
+
+void
+cifs_autodisable_serverino(struct cifs_sb_info *cifs_sb)
+{
+        if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM) {
+                cifs_sb->mnt_cifs_flags &= CIFS_MOUNT_SERVER_INUM;
+                cERROR(1, ("Autodisabling the use of server inode numbers on "
+                           "%s. This server doesn't seem to support them "
+                           "properly. Hardlinks will not be recognized on this "
+                           "mount. Consider mounting with the \"noserverino\" "
+                           "option to silence this message.",
+                           cifs_sb->tcon->treeName));
+        }
+}
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 1f098ca71636..f84062f9a985 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -727,11 +727,12 @@ static int cifs_filldir(char *pfindEntry, struct file *file, filldir_t filldir,
                 cifs_dir_info_to_fattr(&fattr, (FILE_DIRECTORY_INFO *)
                                         pfindEntry, cifs_sb);
 
-        /* FIXME: make _to_fattr functions fill this out */
-        if (pCifsF->srch_inf.info_level == SMB_FIND_FILE_ID_FULL_DIR_INFO)
+        if (inum && (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) {
                 fattr.cf_uniqueid = inum;
-        else
+        } else {
                 fattr.cf_uniqueid = iunique(sb, ROOT_I);
+                cifs_autodisable_serverino(cifs_sb);
+        }
 
         ino = cifs_uniqueid_to_ino_t(fattr.cf_uniqueid);
         tmp_dentry = cifs_readdir_lookup(file->f_dentry, &qstring, &fattr);