userns: Convert omfs to use kuid and kgid where appropriate

Acked-by: NBob Copeland <me@bobcopeland.com>
Acked-by: NSerge Hallyn <serge.hallyn@canonical.com>
Signed-off-by: NEric W. Biederman <ebiederm@xmission.com>

fs/omfs/inode.c

@@ -391,12 +391,16 @@ static int parse_options(char *options, struct omfs_sb_info *sbi)
 		case Opt_uid:
 			if (match_int(&args[0], &option))
 				return 0;
-			sbi->s_uid = option;
+			sbi->s_uid = make_kuid(current_user_ns(), option);
+			if (!uid_valid(sbi->s_uid))
+				return 0;
 			break;
 		case Opt_gid:
 			if (match_int(&args[0], &option))
 				return 0;
-			sbi->s_gid = option;
+			sbi->s_gid = make_kgid(current_user_ns(), option);
+			if (!gid_valid(sbi->s_gid))
+				return 0;
 			break;
 		case Opt_umask:
 			if (match_octal(&args[0], &option))

fs/omfs/omfs.h

@@ -19,8 +19,8 @@ struct omfs_sb_info {
 	unsigned long **s_imap;
 	int s_imap_size;
 	struct mutex s_bitmap_lock;
-	int s_uid;
-	int s_gid;
+	kuid_t s_uid;
+	kgid_t s_gid;
 	int s_dmask;
 	int s_fmask;
 };

init/Kconfig

@@ -950,7 +950,6 @@ config UIDGID_CONVERTED
 	depends on NFSD = n
 	depends on NFS_FS = n
 	depends on OCFS2_FS = n
-	depends on OMFS_FS = n
 	depends on QNX4FS_FS = n
 	depends on QNX6FS_FS = n
 	depends on REISERFS_FS = n