[CIFS] UID/GID override on CIFS mounts to Samba

When CIFS Unix Extensions are negotiated we get the Unix uid and gid
owners of the file from the server (on the Unix Query Path Info
levels), but if the server's uids don't match the client uid's users
were having to disable the Unix Extensions (which turned off features
they still wanted).   The changeset patch allows users to override uid
and/or gid for file/directory owner with a default uid and/or gid
specified at mount (as is often done when mounting from Linux cifs
client to Windows server).  This changeset also displays the uid
and gid used by default in /proc/mounts (if applicable).

Also cleans up code by adding some of the missing spaces after
"if" keywords per-kernel style guidelines (as suggested by Randy Dunlap
when he reviewed the patch).

Signed-off-by: Steve French <sfrench@us.ibm.com>
diff --git a/fs/cifs/TODO b/fs/cifs/TODO
index b70a69b..78b620e 100644
--- a/fs/cifs/TODO
+++ b/fs/cifs/TODO
@@ -80,7 +80,7 @@
 
 u) DOS attrs - returned as pseudo-xattr in Samba format (check VFAT and NTFS for this too)
 
-v) mount check for unmatched uids - and uid override
+v) mount check for unmatched uids
 
 w) Add mount option for Linux extension disable per mount, and partial
 disable per mount (uid off, symlink/fifo/mknod on but what about posix acls?)