| | 1 | /* |
| | 2 | * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved. |
| | 3 | * Written by David Howells (dhowells@redhat.com) |
| | 4 | */ |
| | 5 | |
| | 6 | #include <linux/nfs_fs.h> |
| | 7 | #include "nfs4_fs.h" |
| | 8 | #include "internal.h" |
| | 9 | |
| | 10 | #define NFSDBG_FACILITY NFSDBG_CLIENT |
| | 11 | |
| | 12 | int nfs4_get_rootfh(struct nfs_server *server, struct nfs_fh *mntfh) |
| | 13 | { |
| | 14 | struct nfs_fsinfo fsinfo; |
| | 15 | int ret = -ENOMEM; |
| | 16 | |
| | 17 | dprintk("--> nfs4_get_rootfh()\n"); |
| | 18 | |
| | 19 | fsinfo.fattr = nfs_alloc_fattr(); |
| | 20 | if (fsinfo.fattr == NULL) |
| | 21 | goto out; |
| | 22 | |
| | 23 | /* Start by getting the root filehandle from the server */ |
| | 24 | ret = nfs4_proc_get_rootfh(server, mntfh, &fsinfo); |
| | 25 | if (ret < 0) { |
| | 26 | dprintk("nfs4_get_rootfh: getroot error = %d\n", -ret); |
| | 27 | goto out; |
| | 28 | } |
| | 29 | |
| | 30 | if (!(fsinfo.fattr->valid & NFS_ATTR_FATTR_TYPE) |
| | 31 | || !S_ISDIR(fsinfo.fattr->mode)) { |
| | 32 | printk(KERN_ERR "nfs4_get_rootfh:" |
| | 33 | " getroot encountered non-directory\n"); |
| | 34 | ret = -ENOTDIR; |
| | 35 | goto out; |
| | 36 | } |
| | 37 | |
| | 38 | if (fsinfo.fattr->valid & NFS_ATTR_FATTR_V4_REFERRAL) { |
| | 39 | printk(KERN_ERR "nfs4_get_rootfh:" |
| | 40 | " getroot obtained referral\n"); |
| | 41 | ret = -EREMOTE; |
| | 42 | goto out; |
| | 43 | } |
| | 44 | |
| | 45 | memcpy(&server->fsid, &fsinfo.fattr->fsid, sizeof(server->fsid)); |
| | 46 | out: |
| | 47 | nfs_free_fattr(fsinfo.fattr); |
| | 48 | dprintk("<-- nfs4_get_rootfh() = %d\n", ret); |
| | 49 | return ret; |
| | 50 | } |
projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame_incremental