cifs: reinstate the forcegid option

Apparently this was lost when we converted to the standard option
parser in 8830d7e07a5e38bc47650a7554b7c1cfd49902bf

Cc: Sachin Prabhu <sprabhu@redhat.com>
Cc: stable@vger.kernel.org # v3.4+
Reported-by: Gregory Lee Bartholomew <gregory.lee.bartholomew@gmail.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>

diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index 2fdbe08..5c670b9 100644 (file)
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -67,6 +67,7 @@ enum {
        /* Mount options that take no arguments */
        Opt_user_xattr, Opt_nouser_xattr,
        Opt_forceuid, Opt_noforceuid,
+       Opt_forcegid, Opt_noforcegid,
        Opt_noblocksend, Opt_noautotune,
        Opt_hard, Opt_soft, Opt_perm, Opt_noperm,
        Opt_mapchars, Opt_nomapchars, Opt_sfu,
@@ -117,6 +118,8 @@ static const match_table_t cifs_mount_option_tokens = {
        { Opt_nouser_xattr, "nouser_xattr" },
        { Opt_forceuid, "forceuid" },
        { Opt_noforceuid, "noforceuid" },
+       { Opt_forcegid, "forcegid" },
+       { Opt_noforcegid, "noforcegid" },
        { Opt_noblocksend, "noblocksend" },
        { Opt_noautotune, "noautotune" },
        { Opt_hard, "hard" },
@@ -1195,6 +1198,12 @@ cifs_parse_mount_options(const char *mountdata, const char *devname,
                case Opt_noforceuid:
                        override_uid = 0;
                        break;
+               case Opt_forcegid:
+                       override_gid = 1;
+                       break;
+               case Opt_noforcegid:
+                       override_gid = 0;
+                       break;
                case Opt_noblocksend:
                        vol->noblocksnd = 1;
                        break;