diff --git a/fs/ncpfs/inode.c b/fs/ncpfs/inode.c
index 1acdad7..e2be336 100644
--- a/fs/ncpfs/inode.c
+++ b/fs/ncpfs/inode.c
@@ -331,12 +331,15 @@
 	struct ncp_server *server = NCP_SBP(root->d_sb);
 	unsigned int tmp;
 
-	if (server->m.uid != 0)
-		seq_printf(seq, ",uid=%u", server->m.uid);
-	if (server->m.gid != 0)
-		seq_printf(seq, ",gid=%u", server->m.gid);
-	if (server->m.mounted_uid != 0)
-		seq_printf(seq, ",owner=%u", server->m.mounted_uid);
+	if (!uid_eq(server->m.uid, GLOBAL_ROOT_UID))
+		seq_printf(seq, ",uid=%u",
+			   from_kuid_munged(&init_user_ns, server->m.uid));
+	if (!gid_eq(server->m.gid, GLOBAL_ROOT_GID))
+		seq_printf(seq, ",gid=%u",
+			   from_kgid_munged(&init_user_ns, server->m.gid));
+	if (!uid_eq(server->m.mounted_uid, GLOBAL_ROOT_UID))
+		seq_printf(seq, ",owner=%u",
+			   from_kuid_munged(&init_user_ns, server->m.mounted_uid));
 	tmp = server->m.file_mode & S_IALLUGO;
 	if (tmp != NCP_DEFAULT_FILE_MODE)
 		seq_printf(seq, ",mode=0%o", tmp);
@@ -381,13 +384,13 @@
 
 	data->flags = 0;
 	data->int_flags = 0;
-	data->mounted_uid = 0;
+	data->mounted_uid = GLOBAL_ROOT_UID;
 	data->wdog_pid = NULL;
 	data->ncp_fd = ~0;
 	data->time_out = NCP_DEFAULT_TIME_OUT;
 	data->retry_count = NCP_DEFAULT_RETRY_COUNT;
-	data->uid = 0;
-	data->gid = 0;
+	data->uid = GLOBAL_ROOT_UID;
+	data->gid = GLOBAL_ROOT_GID;
 	data->file_mode = NCP_DEFAULT_FILE_MODE;
 	data->dir_mode = NCP_DEFAULT_DIR_MODE;
 	data->info_fd = -1;
@@ -399,13 +402,19 @@
 			goto err;
 		switch (optval) {
 			case 'u':
-				data->uid = optint;
+				data->uid = make_kuid(current_user_ns(), optint);
+				if (!uid_valid(data->uid))
+					goto err;
 				break;
 			case 'g':
-				data->gid = optint;
+				data->gid = make_kgid(current_user_ns(), optint);
+				if (!gid_valid(data->gid))
+					goto err;
 				break;
 			case 'o':
-				data->mounted_uid = optint;
+				data->mounted_uid = make_kuid(current_user_ns(), optint);
+				if (!uid_valid(data->mounted_uid))
+					goto err;
 				break;
 			case 'm':
 				data->file_mode = optint;
@@ -480,13 +489,13 @@
 
 				data.flags = md->flags;
 				data.int_flags = NCP_IMOUNT_LOGGEDIN_POSSIBLE;
-				data.mounted_uid = md->mounted_uid;
+				data.mounted_uid = make_kuid(current_user_ns(), md->mounted_uid);
 				data.wdog_pid = find_get_pid(md->wdog_pid);
 				data.ncp_fd = md->ncp_fd;
 				data.time_out = md->time_out;
 				data.retry_count = md->retry_count;
-				data.uid = md->uid;
-				data.gid = md->gid;
+				data.uid = make_kuid(current_user_ns(), md->uid);
+				data.gid = make_kgid(current_user_ns(), md->gid);
 				data.file_mode = md->file_mode;
 				data.dir_mode = md->dir_mode;
 				data.info_fd = -1;
@@ -499,13 +508,13 @@
 				struct ncp_mount_data_v4* md = (struct ncp_mount_data_v4*)raw_data;
 
 				data.flags = md->flags;
-				data.mounted_uid = md->mounted_uid;
+				data.mounted_uid = make_kuid(current_user_ns(), md->mounted_uid);
 				data.wdog_pid = find_get_pid(md->wdog_pid);
 				data.ncp_fd = md->ncp_fd;
 				data.time_out = md->time_out;
 				data.retry_count = md->retry_count;
-				data.uid = md->uid;
-				data.gid = md->gid;
+				data.uid = make_kuid(current_user_ns(), md->uid);
+				data.gid = make_kgid(current_user_ns(), md->gid);
 				data.file_mode = md->file_mode;
 				data.dir_mode = md->dir_mode;
 				data.info_fd = -1;
@@ -520,6 +529,10 @@
 				goto out;
 			break;
 	}
+	error = -EINVAL;
+	if (!uid_valid(data.mounted_uid) || !uid_valid(data.uid) ||
+	    !gid_valid(data.gid))
+		goto out;
 	error = -EBADF;
 	ncp_filp = fget(data.ncp_fd);
 	if (!ncp_filp)
@@ -886,12 +899,10 @@
 		goto out;
 
 	result = -EPERM;
-	if (((attr->ia_valid & ATTR_UID) &&
-	     (attr->ia_uid != server->m.uid)))
+	if ((attr->ia_valid & ATTR_UID) && !uid_eq(attr->ia_uid, server->m.uid))
 		goto out;
 
-	if (((attr->ia_valid & ATTR_GID) &&
-	     (attr->ia_gid != server->m.gid)))
+	if ((attr->ia_valid & ATTR_GID) && !gid_eq(attr->ia_gid, server->m.gid))
 		goto out;
 
 	if (((attr->ia_valid & ATTR_MODE) &&
diff --git a/fs/ncpfs/ioctl.c b/fs/ncpfs/ioctl.c
index 6958adf..d44318d 100644
--- a/fs/ncpfs/ioctl.c
+++ b/fs/ncpfs/ioctl.c
@@ -45,7 +45,7 @@
 		return -EINVAL;
 	}
 	/* TODO: info.addr = server->m.serv_addr; */
-	SET_UID(info.mounted_uid, server->m.mounted_uid);
+	SET_UID(info.mounted_uid, from_kuid_munged(current_user_ns(), server->m.mounted_uid));
 	info.connection		= server->connection;
 	info.buffer_size	= server->buffer_size;
 	info.volume_number	= NCP_FINFO(inode)->volNumber;
@@ -69,7 +69,7 @@
 		DPRINTK("info.version invalid: %d\n", info2.version);
 		return -EINVAL;
 	}
-	info2.mounted_uid   = server->m.mounted_uid;
+	info2.mounted_uid   = from_kuid_munged(current_user_ns(), server->m.mounted_uid);
 	info2.connection    = server->connection;
 	info2.buffer_size   = server->buffer_size;
 	info2.volume_number = NCP_FINFO(inode)->volNumber;
@@ -135,7 +135,7 @@
 		DPRINTK("info.version invalid: %d\n", info2.version);
 		return -EINVAL;
 	}
-	info2.mounted_uid   = server->m.mounted_uid;
+	info2.mounted_uid   = from_kuid_munged(current_user_ns(), server->m.mounted_uid);
 	info2.connection    = server->connection;
 	info2.buffer_size   = server->buffer_size;
 	info2.volume_number = NCP_FINFO(inode)->volNumber;
@@ -348,22 +348,25 @@
 		{
 			u16 uid;
 
-			SET_UID(uid, server->m.mounted_uid);
+			SET_UID(uid, from_kuid_munged(current_user_ns(), server->m.mounted_uid));
 			if (put_user(uid, (u16 __user *)argp))
 				return -EFAULT;
 			return 0;
 		}
 	case NCP_IOC_GETMOUNTUID32:
-		if (put_user(server->m.mounted_uid,
-			     (u32 __user *)argp))
+	{
+		uid_t uid = from_kuid_munged(current_user_ns(), server->m.mounted_uid);
+		if (put_user(uid, (u32 __user *)argp))
 			return -EFAULT;
 		return 0;
+	}
 	case NCP_IOC_GETMOUNTUID64:
-		if (put_user(server->m.mounted_uid,
-			     (u64 __user *)argp))
+	{
+		uid_t uid = from_kuid_munged(current_user_ns(), server->m.mounted_uid);
+		if (put_user(uid, (u64 __user *)argp))
 			return -EFAULT;
 		return 0;
-
+	}
 	case NCP_IOC_GETROOT:
 		{
 			struct ncp_setroot_ioctl sr;
@@ -810,7 +813,7 @@
 {
 	struct inode *inode = filp->f_dentry->d_inode;
 	struct ncp_server *server = NCP_SERVER(inode);
-	uid_t uid = current_uid();
+	kuid_t uid = current_uid();
 	int need_drop_write = 0;
 	long ret;
 
@@ -824,7 +827,7 @@
 		}
 		break;
 	}
-	if (server->m.mounted_uid != uid) {
+	if (!uid_eq(server->m.mounted_uid, uid)) {
 		switch (cmd) {
 		/*
 		 * Only mount owner can issue these ioctls.  Information
diff --git a/fs/ncpfs/ncp_fs_sb.h b/fs/ncpfs/ncp_fs_sb.h
index 54cc0cd..c51b2c5 100644
--- a/fs/ncpfs/ncp_fs_sb.h
+++ b/fs/ncpfs/ncp_fs_sb.h
@@ -23,15 +23,15 @@
 	unsigned long    flags;		/* NCP_MOUNT_* flags */
 	unsigned int	 int_flags;	/* internal flags */
 #define NCP_IMOUNT_LOGGEDIN_POSSIBLE	0x0001
-	uid_t		 mounted_uid;	/* Who may umount() this filesystem? */
+	kuid_t		 mounted_uid;	/* Who may umount() this filesystem? */
 	struct pid      *wdog_pid;	/* Who cares for our watchdog packets? */
 	unsigned int     ncp_fd;	/* The socket to the ncp port */
 	unsigned int     time_out;	/* How long should I wait after
 					   sending a NCP request? */
 	unsigned int     retry_count;	/* And how often should I retry? */
 	unsigned char	 mounted_vol[NCP_VOLNAME_LEN + 1];
-	uid_t		 uid;
-	gid_t		 gid;
+	kuid_t		 uid;
+	kgid_t		 gid;
 	umode_t		 file_mode;
 	umode_t		 dir_mode;
 	int		 info_fd;
diff --git a/init/Kconfig b/init/Kconfig
index 591fc75..b526f4c 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1072,7 +1072,6 @@
 
 	# Filesystems
 	depends on CIFS = n
-	depends on NCP_FS = n
 	depends on NFSD = n
 	depends on NFS_FS = n
 	depends on XFS_FS = n