// SPDX-License-Identifier: GPL-2.0 /* * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) */ #include <linux/nfs_fs.h> #include "nfs4_fs.h" #include "internal.h" #define NFSDBG_FACILITY NFSDBG_CLIENT int nfs4_get_rootfh(struct nfs_server *server, struct nfs_fh *mntfh, bool auth_probe) { struct nfs_fsinfo fsinfo; int ret = -ENOMEM; fsinfo.fattr = nfs_alloc_fattr(); if (fsinfo.fattr == NULL) goto out; /* Start by getting the root filehandle from the server */ ret = nfs4_proc_get_rootfh(server, mntfh, &fsinfo, auth_probe); if (ret < 0) { dprintk("nfs4_get_rootfh: getroot error = %d\n", -ret); goto out; } if (!(fsinfo.fattr->valid & NFS_ATTR_FATTR_TYPE) || !S_ISDIR(fsinfo.fattr->mode)) { printk(KERN_ERR "nfs4_get_rootfh:" " getroot encountered non-directory\n"); ret = -ENOTDIR; goto out; } memcpy(&server->fsid, &fsinfo.fattr->fsid, sizeof(server->fsid)); out: nfs_free_fattr(fsinfo.fattr); return ret; }