1b2441318SGreg Kroah-Hartman // SPDX-License-Identifier: GPL-2.0 21da177e4SLinus Torvalds /* 31da177e4SLinus Torvalds * linux/fs/nfs/proc.c 41da177e4SLinus Torvalds * 51da177e4SLinus Torvalds * Copyright (C) 1992, 1993, 1994 Rick Sladkey 61da177e4SLinus Torvalds * 71da177e4SLinus Torvalds * OS-independent nfs remote procedure call functions 81da177e4SLinus Torvalds * 91da177e4SLinus Torvalds * Tuned by Alan Cox <A.Cox@swansea.ac.uk> for >3K buffers 101da177e4SLinus Torvalds * so at last we can have decent(ish) throughput off a 111da177e4SLinus Torvalds * Sun server. 121da177e4SLinus Torvalds * 131da177e4SLinus Torvalds * Coding optimized and cleaned up by Florian La Roche. 141da177e4SLinus Torvalds * Note: Error returns are optimized for NFS_OK, which isn't translated via 151da177e4SLinus Torvalds * nfs_stat_to_errno(), but happens to be already the right return code. 161da177e4SLinus Torvalds * 171da177e4SLinus Torvalds * Also, the code currently doesn't check the size of the packet, when 181da177e4SLinus Torvalds * it decodes the packet. 191da177e4SLinus Torvalds * 201da177e4SLinus Torvalds * Feel free to fix it and mail me the diffs if it worries you. 211da177e4SLinus Torvalds * 221da177e4SLinus Torvalds * Completely rewritten to support the new RPC call interface; 231da177e4SLinus Torvalds * rewrote and moved the entire XDR stuff to xdr.c 241da177e4SLinus Torvalds * --Olaf Kirch June 1996 251da177e4SLinus Torvalds * 261da177e4SLinus Torvalds * The code below initializes all auto variables explicitly, otherwise 271da177e4SLinus Torvalds * it will fail to work as a module (gcc generates a memset call for an 281da177e4SLinus Torvalds * incomplete struct). 291da177e4SLinus Torvalds */ 301da177e4SLinus Torvalds 311da177e4SLinus Torvalds #include <linux/types.h> 321da177e4SLinus Torvalds #include <linux/param.h> 331da177e4SLinus Torvalds #include <linux/time.h> 341da177e4SLinus Torvalds #include <linux/mm.h> 351da177e4SLinus Torvalds #include <linux/errno.h> 361da177e4SLinus Torvalds #include <linux/string.h> 371da177e4SLinus Torvalds #include <linux/in.h> 381da177e4SLinus Torvalds #include <linux/pagemap.h> 391da177e4SLinus Torvalds #include <linux/sunrpc/clnt.h> 401da177e4SLinus Torvalds #include <linux/nfs.h> 411da177e4SLinus Torvalds #include <linux/nfs2.h> 421da177e4SLinus Torvalds #include <linux/nfs_fs.h> 431da177e4SLinus Torvalds #include <linux/nfs_page.h> 441da177e4SLinus Torvalds #include <linux/lockd/bind.h> 45d310310cSJeff Layton #include <linux/freezer.h> 46f7b422b1SDavid Howells #include "internal.h" 471da177e4SLinus Torvalds 481da177e4SLinus Torvalds #define NFSDBG_FACILITY NFSDBG_PROC 491da177e4SLinus Torvalds 501da177e4SLinus Torvalds /* 511da177e4SLinus Torvalds * Bare-bones access to getattr: this is for nfs_read_super. 521da177e4SLinus Torvalds */ 531da177e4SLinus Torvalds static int 541da177e4SLinus Torvalds nfs_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle, 551da177e4SLinus Torvalds struct nfs_fsinfo *info) 561da177e4SLinus Torvalds { 571da177e4SLinus Torvalds struct nfs_fattr *fattr = info->fattr; 581da177e4SLinus Torvalds struct nfs2_fsstat fsinfo; 59dead28daSChuck Lever struct rpc_message msg = { 60dead28daSChuck Lever .rpc_proc = &nfs_procedures[NFSPROC_GETATTR], 61dead28daSChuck Lever .rpc_argp = fhandle, 62dead28daSChuck Lever .rpc_resp = fattr, 63dead28daSChuck Lever }; 641da177e4SLinus Torvalds int status; 651da177e4SLinus Torvalds 663110ff80SHarvey Harrison dprintk("%s: call getattr\n", __func__); 670e574af1STrond Myklebust nfs_fattr_init(fattr); 6837ca8f5cSEG Keizer status = rpc_call_sync(server->client, &msg, 0); 6937ca8f5cSEG Keizer /* Retry with default authentication if different */ 7037ca8f5cSEG Keizer if (status && server->nfs_client->cl_rpcclient != server->client) 715006a76cSDavid Howells status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0); 723110ff80SHarvey Harrison dprintk("%s: reply getattr: %d\n", __func__, status); 731da177e4SLinus Torvalds if (status) 741da177e4SLinus Torvalds return status; 753110ff80SHarvey Harrison dprintk("%s: call statfs\n", __func__); 76dead28daSChuck Lever msg.rpc_proc = &nfs_procedures[NFSPROC_STATFS]; 77dead28daSChuck Lever msg.rpc_resp = &fsinfo; 7837ca8f5cSEG Keizer status = rpc_call_sync(server->client, &msg, 0); 7937ca8f5cSEG Keizer /* Retry with default authentication if different */ 8037ca8f5cSEG Keizer if (status && server->nfs_client->cl_rpcclient != server->client) 815006a76cSDavid Howells status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0); 823110ff80SHarvey Harrison dprintk("%s: reply statfs: %d\n", __func__, status); 831da177e4SLinus Torvalds if (status) 841da177e4SLinus Torvalds return status; 851da177e4SLinus Torvalds info->rtmax = NFS_MAXDATA; 861da177e4SLinus Torvalds info->rtpref = fsinfo.tsize; 871da177e4SLinus Torvalds info->rtmult = fsinfo.bsize; 881da177e4SLinus Torvalds info->wtmax = NFS_MAXDATA; 891da177e4SLinus Torvalds info->wtpref = fsinfo.tsize; 901da177e4SLinus Torvalds info->wtmult = fsinfo.bsize; 911da177e4SLinus Torvalds info->dtpref = fsinfo.tsize; 921da177e4SLinus Torvalds info->maxfilesize = 0x7FFFFFFF; 931da177e4SLinus Torvalds info->lease_time = 0; 941da177e4SLinus Torvalds return 0; 951da177e4SLinus Torvalds } 961da177e4SLinus Torvalds 971da177e4SLinus Torvalds /* 981da177e4SLinus Torvalds * One function for each procedure in the NFS protocol. 991da177e4SLinus Torvalds */ 1001da177e4SLinus Torvalds static int 1011da177e4SLinus Torvalds nfs_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle, 1021775fd3eSDavid Quigley struct nfs_fattr *fattr, struct nfs4_label *label) 1031da177e4SLinus Torvalds { 104dead28daSChuck Lever struct rpc_message msg = { 105dead28daSChuck Lever .rpc_proc = &nfs_procedures[NFSPROC_GETATTR], 106dead28daSChuck Lever .rpc_argp = fhandle, 107dead28daSChuck Lever .rpc_resp = fattr, 108dead28daSChuck Lever }; 1091da177e4SLinus Torvalds int status; 1101da177e4SLinus Torvalds 1111da177e4SLinus Torvalds dprintk("NFS call getattr\n"); 1120e574af1STrond Myklebust nfs_fattr_init(fattr); 113dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 1141da177e4SLinus Torvalds dprintk("NFS reply getattr: %d\n", status); 1151da177e4SLinus Torvalds return status; 1161da177e4SLinus Torvalds } 1171da177e4SLinus Torvalds 1181da177e4SLinus Torvalds static int 1191da177e4SLinus Torvalds nfs_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr, 1201da177e4SLinus Torvalds struct iattr *sattr) 1211da177e4SLinus Torvalds { 1222b0143b5SDavid Howells struct inode *inode = d_inode(dentry); 1231da177e4SLinus Torvalds struct nfs_sattrargs arg = { 1241da177e4SLinus Torvalds .fh = NFS_FH(inode), 1251da177e4SLinus Torvalds .sattr = sattr 1261da177e4SLinus Torvalds }; 127dead28daSChuck Lever struct rpc_message msg = { 128dead28daSChuck Lever .rpc_proc = &nfs_procedures[NFSPROC_SETATTR], 129dead28daSChuck Lever .rpc_argp = &arg, 130dead28daSChuck Lever .rpc_resp = fattr, 131dead28daSChuck Lever }; 1321da177e4SLinus Torvalds int status; 1331da177e4SLinus Torvalds 134cf3fff54STrond Myklebust /* Mask out the non-modebit related stuff from attr->ia_mode */ 135cf3fff54STrond Myklebust sattr->ia_mode &= S_IALLUGO; 136cf3fff54STrond Myklebust 1371da177e4SLinus Torvalds dprintk("NFS call setattr\n"); 138659bfcd6STrond Myklebust if (sattr->ia_valid & ATTR_FILE) 139659bfcd6STrond Myklebust msg.rpc_cred = nfs_file_cred(sattr->ia_file); 1400e574af1STrond Myklebust nfs_fattr_init(fattr); 141dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 14265e4308dSTrond Myklebust if (status == 0) 143f044636dSTrond Myklebust nfs_setattr_update_inode(inode, sattr, fattr); 1441da177e4SLinus Torvalds dprintk("NFS reply setattr: %d\n", status); 1451da177e4SLinus Torvalds return status; 1461da177e4SLinus Torvalds } 1471da177e4SLinus Torvalds 1481da177e4SLinus Torvalds static int 149beffb8feSAl Viro nfs_proc_lookup(struct inode *dir, const struct qstr *name, 1501775fd3eSDavid Quigley struct nfs_fh *fhandle, struct nfs_fattr *fattr, 1511775fd3eSDavid Quigley struct nfs4_label *label) 1521da177e4SLinus Torvalds { 1531da177e4SLinus Torvalds struct nfs_diropargs arg = { 1541da177e4SLinus Torvalds .fh = NFS_FH(dir), 1551da177e4SLinus Torvalds .name = name->name, 1561da177e4SLinus Torvalds .len = name->len 1571da177e4SLinus Torvalds }; 1581da177e4SLinus Torvalds struct nfs_diropok res = { 1591da177e4SLinus Torvalds .fh = fhandle, 1601da177e4SLinus Torvalds .fattr = fattr 1611da177e4SLinus Torvalds }; 162dead28daSChuck Lever struct rpc_message msg = { 163dead28daSChuck Lever .rpc_proc = &nfs_procedures[NFSPROC_LOOKUP], 164dead28daSChuck Lever .rpc_argp = &arg, 165dead28daSChuck Lever .rpc_resp = &res, 166dead28daSChuck Lever }; 1671da177e4SLinus Torvalds int status; 1681da177e4SLinus Torvalds 1691da177e4SLinus Torvalds dprintk("NFS call lookup %s\n", name->name); 1700e574af1STrond Myklebust nfs_fattr_init(fattr); 171dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 1721da177e4SLinus Torvalds dprintk("NFS reply lookup: %d\n", status); 1731da177e4SLinus Torvalds return status; 1741da177e4SLinus Torvalds } 1751da177e4SLinus Torvalds 1761da177e4SLinus Torvalds static int nfs_proc_readlink(struct inode *inode, struct page *page, 1771da177e4SLinus Torvalds unsigned int pgbase, unsigned int pglen) 1781da177e4SLinus Torvalds { 1791da177e4SLinus Torvalds struct nfs_readlinkargs args = { 1801da177e4SLinus Torvalds .fh = NFS_FH(inode), 1811da177e4SLinus Torvalds .pgbase = pgbase, 1821da177e4SLinus Torvalds .pglen = pglen, 1831da177e4SLinus Torvalds .pages = &page 1841da177e4SLinus Torvalds }; 185dead28daSChuck Lever struct rpc_message msg = { 186dead28daSChuck Lever .rpc_proc = &nfs_procedures[NFSPROC_READLINK], 187dead28daSChuck Lever .rpc_argp = &args, 188dead28daSChuck Lever }; 1891da177e4SLinus Torvalds int status; 1901da177e4SLinus Torvalds 1911da177e4SLinus Torvalds dprintk("NFS call readlink\n"); 192dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 1931da177e4SLinus Torvalds dprintk("NFS reply readlink: %d\n", status); 1941da177e4SLinus Torvalds return status; 1951da177e4SLinus Torvalds } 1961da177e4SLinus Torvalds 197eb872f0cSTrond Myklebust struct nfs_createdata { 198eb872f0cSTrond Myklebust struct nfs_createargs arg; 199eb872f0cSTrond Myklebust struct nfs_diropok res; 200eb872f0cSTrond Myklebust struct nfs_fh fhandle; 201eb872f0cSTrond Myklebust struct nfs_fattr fattr; 202eb872f0cSTrond Myklebust }; 203eb872f0cSTrond Myklebust 204eb872f0cSTrond Myklebust static struct nfs_createdata *nfs_alloc_createdata(struct inode *dir, 205eb872f0cSTrond Myklebust struct dentry *dentry, struct iattr *sattr) 206eb872f0cSTrond Myklebust { 207eb872f0cSTrond Myklebust struct nfs_createdata *data; 208eb872f0cSTrond Myklebust 209eb872f0cSTrond Myklebust data = kmalloc(sizeof(*data), GFP_KERNEL); 210eb872f0cSTrond Myklebust 211eb872f0cSTrond Myklebust if (data != NULL) { 212eb872f0cSTrond Myklebust data->arg.fh = NFS_FH(dir); 213eb872f0cSTrond Myklebust data->arg.name = dentry->d_name.name; 214eb872f0cSTrond Myklebust data->arg.len = dentry->d_name.len; 215eb872f0cSTrond Myklebust data->arg.sattr = sattr; 216eb872f0cSTrond Myklebust nfs_fattr_init(&data->fattr); 217eb872f0cSTrond Myklebust data->fhandle.size = 0; 218eb872f0cSTrond Myklebust data->res.fh = &data->fhandle; 219eb872f0cSTrond Myklebust data->res.fattr = &data->fattr; 220eb872f0cSTrond Myklebust } 221eb872f0cSTrond Myklebust return data; 222eb872f0cSTrond Myklebust }; 223eb872f0cSTrond Myklebust 224eb872f0cSTrond Myklebust static void nfs_free_createdata(const struct nfs_createdata *data) 225eb872f0cSTrond Myklebust { 226eb872f0cSTrond Myklebust kfree(data); 227eb872f0cSTrond Myklebust } 228eb872f0cSTrond Myklebust 2291da177e4SLinus Torvalds static int 2301da177e4SLinus Torvalds nfs_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 2318867fe58SMiklos Szeredi int flags) 2321da177e4SLinus Torvalds { 233eb872f0cSTrond Myklebust struct nfs_createdata *data; 234dead28daSChuck Lever struct rpc_message msg = { 235dead28daSChuck Lever .rpc_proc = &nfs_procedures[NFSPROC_CREATE], 236dead28daSChuck Lever }; 237eb872f0cSTrond Myklebust int status = -ENOMEM; 2381da177e4SLinus Torvalds 2396de1472fSAl Viro dprintk("NFS call create %pd\n", dentry); 240eb872f0cSTrond Myklebust data = nfs_alloc_createdata(dir, dentry, sattr); 241eb872f0cSTrond Myklebust if (data == NULL) 242eb872f0cSTrond Myklebust goto out; 243eb872f0cSTrond Myklebust msg.rpc_argp = &data->arg; 244eb872f0cSTrond Myklebust msg.rpc_resp = &data->res; 245dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 246bad2a524STrond Myklebust nfs_mark_for_revalidate(dir); 2471da177e4SLinus Torvalds if (status == 0) 2481775fd3eSDavid Quigley status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL); 249eb872f0cSTrond Myklebust nfs_free_createdata(data); 250eb872f0cSTrond Myklebust out: 2511da177e4SLinus Torvalds dprintk("NFS reply create: %d\n", status); 2521da177e4SLinus Torvalds return status; 2531da177e4SLinus Torvalds } 2541da177e4SLinus Torvalds 2551da177e4SLinus Torvalds /* 2561da177e4SLinus Torvalds * In NFSv2, mknod is grafted onto the create call. 2571da177e4SLinus Torvalds */ 2581da177e4SLinus Torvalds static int 2591da177e4SLinus Torvalds nfs_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr, 2601da177e4SLinus Torvalds dev_t rdev) 2611da177e4SLinus Torvalds { 262eb872f0cSTrond Myklebust struct nfs_createdata *data; 263dead28daSChuck Lever struct rpc_message msg = { 264dead28daSChuck Lever .rpc_proc = &nfs_procedures[NFSPROC_CREATE], 265dead28daSChuck Lever }; 266eb872f0cSTrond Myklebust umode_t mode; 267eb872f0cSTrond Myklebust int status = -ENOMEM; 2681da177e4SLinus Torvalds 2696de1472fSAl Viro dprintk("NFS call mknod %pd\n", dentry); 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds mode = sattr->ia_mode; 2721da177e4SLinus Torvalds if (S_ISFIFO(mode)) { 2731da177e4SLinus Torvalds sattr->ia_mode = (mode & ~S_IFMT) | S_IFCHR; 2741da177e4SLinus Torvalds sattr->ia_valid &= ~ATTR_SIZE; 2751da177e4SLinus Torvalds } else if (S_ISCHR(mode) || S_ISBLK(mode)) { 2761da177e4SLinus Torvalds sattr->ia_valid |= ATTR_SIZE; 2771da177e4SLinus Torvalds sattr->ia_size = new_encode_dev(rdev);/* get out your barf bag */ 2781da177e4SLinus Torvalds } 2791da177e4SLinus Torvalds 280eb872f0cSTrond Myklebust data = nfs_alloc_createdata(dir, dentry, sattr); 281eb872f0cSTrond Myklebust if (data == NULL) 282eb872f0cSTrond Myklebust goto out; 283eb872f0cSTrond Myklebust msg.rpc_argp = &data->arg; 284eb872f0cSTrond Myklebust msg.rpc_resp = &data->res; 285eb872f0cSTrond Myklebust 286dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 287decf491fSTrond Myklebust nfs_mark_for_revalidate(dir); 2881da177e4SLinus Torvalds 2891da177e4SLinus Torvalds if (status == -EINVAL && S_ISFIFO(mode)) { 2901da177e4SLinus Torvalds sattr->ia_mode = mode; 291eb872f0cSTrond Myklebust nfs_fattr_init(data->res.fattr); 292dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 2931da177e4SLinus Torvalds } 2941da177e4SLinus Torvalds if (status == 0) 2951775fd3eSDavid Quigley status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL); 296eb872f0cSTrond Myklebust nfs_free_createdata(data); 297eb872f0cSTrond Myklebust out: 2981da177e4SLinus Torvalds dprintk("NFS reply mknod: %d\n", status); 2991da177e4SLinus Torvalds return status; 3001da177e4SLinus Torvalds } 3011da177e4SLinus Torvalds 3021da177e4SLinus Torvalds static int 303912678dbSTrond Myklebust nfs_proc_remove(struct inode *dir, struct dentry *dentry) 3041da177e4SLinus Torvalds { 3054fdc17b2STrond Myklebust struct nfs_removeargs arg = { 3061da177e4SLinus Torvalds .fh = NFS_FH(dir), 307912678dbSTrond Myklebust .name = dentry->d_name, 3081da177e4SLinus Torvalds }; 3091da177e4SLinus Torvalds struct rpc_message msg = { 3101da177e4SLinus Torvalds .rpc_proc = &nfs_procedures[NFSPROC_REMOVE], 3111da177e4SLinus Torvalds .rpc_argp = &arg, 3121da177e4SLinus Torvalds }; 3131da177e4SLinus Torvalds int status; 3141da177e4SLinus Torvalds 315912678dbSTrond Myklebust dprintk("NFS call remove %pd2\n",dentry); 3161da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 317decf491fSTrond Myklebust nfs_mark_for_revalidate(dir); 3181da177e4SLinus Torvalds 3191da177e4SLinus Torvalds dprintk("NFS reply remove: %d\n", status); 3201da177e4SLinus Torvalds return status; 3211da177e4SLinus Torvalds } 3221da177e4SLinus Torvalds 323e4eff1a6STrond Myklebust static void 324ed7e9ad0STrond Myklebust nfs_proc_unlink_setup(struct rpc_message *msg, 325ed7e9ad0STrond Myklebust struct dentry *dentry, 326ed7e9ad0STrond Myklebust struct inode *inode) 3271da177e4SLinus Torvalds { 3281da177e4SLinus Torvalds msg->rpc_proc = &nfs_procedures[NFSPROC_REMOVE]; 3291da177e4SLinus Torvalds } 3301da177e4SLinus Torvalds 33134e137ccSBryan Schumaker static void nfs_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data) 33234e137ccSBryan Schumaker { 33334e137ccSBryan Schumaker rpc_call_start(task); 33434e137ccSBryan Schumaker } 33534e137ccSBryan Schumaker 336e4eff1a6STrond Myklebust static int nfs_proc_unlink_done(struct rpc_task *task, struct inode *dir) 3371da177e4SLinus Torvalds { 338e4eff1a6STrond Myklebust nfs_mark_for_revalidate(dir); 339e4eff1a6STrond Myklebust return 1; 3401da177e4SLinus Torvalds } 3411da177e4SLinus Torvalds 342d3d4152aSJeff Layton static void 343f2c2c552STrond Myklebust nfs_proc_rename_setup(struct rpc_message *msg, 344f2c2c552STrond Myklebust struct dentry *old_dentry, 345f2c2c552STrond Myklebust struct dentry *new_dentry) 346d3d4152aSJeff Layton { 347d3d4152aSJeff Layton msg->rpc_proc = &nfs_procedures[NFSPROC_RENAME]; 348d3d4152aSJeff Layton } 349d3d4152aSJeff Layton 350c6bfa1a1SBryan Schumaker static void nfs_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data) 351c6bfa1a1SBryan Schumaker { 352c6bfa1a1SBryan Schumaker rpc_call_start(task); 353c6bfa1a1SBryan Schumaker } 354c6bfa1a1SBryan Schumaker 355d3d4152aSJeff Layton static int 356d3d4152aSJeff Layton nfs_proc_rename_done(struct rpc_task *task, struct inode *old_dir, 357d3d4152aSJeff Layton struct inode *new_dir) 358d3d4152aSJeff Layton { 359d3d4152aSJeff Layton nfs_mark_for_revalidate(old_dir); 360d3d4152aSJeff Layton nfs_mark_for_revalidate(new_dir); 361d3d4152aSJeff Layton return 1; 362d3d4152aSJeff Layton } 363d3d4152aSJeff Layton 3641da177e4SLinus Torvalds static int 365beffb8feSAl Viro nfs_proc_link(struct inode *inode, struct inode *dir, const struct qstr *name) 3661da177e4SLinus Torvalds { 3671da177e4SLinus Torvalds struct nfs_linkargs arg = { 3681da177e4SLinus Torvalds .fromfh = NFS_FH(inode), 3691da177e4SLinus Torvalds .tofh = NFS_FH(dir), 3701da177e4SLinus Torvalds .toname = name->name, 3711da177e4SLinus Torvalds .tolen = name->len 3721da177e4SLinus Torvalds }; 373dead28daSChuck Lever struct rpc_message msg = { 374dead28daSChuck Lever .rpc_proc = &nfs_procedures[NFSPROC_LINK], 375dead28daSChuck Lever .rpc_argp = &arg, 376dead28daSChuck Lever }; 3771da177e4SLinus Torvalds int status; 3781da177e4SLinus Torvalds 3791da177e4SLinus Torvalds dprintk("NFS call link %s\n", name->name); 380dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0); 3815ba7cc48STrond Myklebust nfs_mark_for_revalidate(inode); 382decf491fSTrond Myklebust nfs_mark_for_revalidate(dir); 3831da177e4SLinus Torvalds dprintk("NFS reply link: %d\n", status); 3841da177e4SLinus Torvalds return status; 3851da177e4SLinus Torvalds } 3861da177e4SLinus Torvalds 3871da177e4SLinus Torvalds static int 38894a6d753SChuck Lever nfs_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page, 38994a6d753SChuck Lever unsigned int len, struct iattr *sattr) 3901da177e4SLinus Torvalds { 39123a30612STrond Myklebust struct nfs_fh *fh; 39223a30612STrond Myklebust struct nfs_fattr *fattr; 3931da177e4SLinus Torvalds struct nfs_symlinkargs arg = { 3941da177e4SLinus Torvalds .fromfh = NFS_FH(dir), 3954f390c15SChuck Lever .fromname = dentry->d_name.name, 3964f390c15SChuck Lever .fromlen = dentry->d_name.len, 39794a6d753SChuck Lever .pages = &page, 39894a6d753SChuck Lever .pathlen = len, 3991da177e4SLinus Torvalds .sattr = sattr 4001da177e4SLinus Torvalds }; 401dead28daSChuck Lever struct rpc_message msg = { 402dead28daSChuck Lever .rpc_proc = &nfs_procedures[NFSPROC_SYMLINK], 403dead28daSChuck Lever .rpc_argp = &arg, 404dead28daSChuck Lever }; 40523a30612STrond Myklebust int status = -ENAMETOOLONG; 4064f390c15SChuck Lever 4076de1472fSAl Viro dprintk("NFS call symlink %pd\n", dentry); 40894a6d753SChuck Lever 40923a30612STrond Myklebust if (len > NFS2_MAXPATHLEN) 41023a30612STrond Myklebust goto out; 41123a30612STrond Myklebust 41223a30612STrond Myklebust fh = nfs_alloc_fhandle(); 41323a30612STrond Myklebust fattr = nfs_alloc_fattr(); 41423a30612STrond Myklebust status = -ENOMEM; 41523a30612STrond Myklebust if (fh == NULL || fattr == NULL) 416878215feSJesper Juhl goto out_free; 41723a30612STrond Myklebust 418dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 419decf491fSTrond Myklebust nfs_mark_for_revalidate(dir); 4204f390c15SChuck Lever 4214f390c15SChuck Lever /* 4224f390c15SChuck Lever * V2 SYMLINK requests don't return any attributes. Setting the 4234f390c15SChuck Lever * filehandle size to zero indicates to nfs_instantiate that it 4244f390c15SChuck Lever * should fill in the data with a LOOKUP call on the wire. 4254f390c15SChuck Lever */ 42623a30612STrond Myklebust if (status == 0) 4271775fd3eSDavid Quigley status = nfs_instantiate(dentry, fh, fattr, NULL); 4284f390c15SChuck Lever 429878215feSJesper Juhl out_free: 43023a30612STrond Myklebust nfs_free_fattr(fattr); 43123a30612STrond Myklebust nfs_free_fhandle(fh); 43223a30612STrond Myklebust out: 4331da177e4SLinus Torvalds dprintk("NFS reply symlink: %d\n", status); 4341da177e4SLinus Torvalds return status; 4351da177e4SLinus Torvalds } 4361da177e4SLinus Torvalds 4371da177e4SLinus Torvalds static int 4381da177e4SLinus Torvalds nfs_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr) 4391da177e4SLinus Torvalds { 440eb872f0cSTrond Myklebust struct nfs_createdata *data; 441dead28daSChuck Lever struct rpc_message msg = { 442dead28daSChuck Lever .rpc_proc = &nfs_procedures[NFSPROC_MKDIR], 443dead28daSChuck Lever }; 444eb872f0cSTrond Myklebust int status = -ENOMEM; 4451da177e4SLinus Torvalds 4466de1472fSAl Viro dprintk("NFS call mkdir %pd\n", dentry); 447eb872f0cSTrond Myklebust data = nfs_alloc_createdata(dir, dentry, sattr); 448eb872f0cSTrond Myklebust if (data == NULL) 449eb872f0cSTrond Myklebust goto out; 450eb872f0cSTrond Myklebust msg.rpc_argp = &data->arg; 451eb872f0cSTrond Myklebust msg.rpc_resp = &data->res; 452eb872f0cSTrond Myklebust 453dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 454decf491fSTrond Myklebust nfs_mark_for_revalidate(dir); 4551da177e4SLinus Torvalds if (status == 0) 4561775fd3eSDavid Quigley status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL); 457eb872f0cSTrond Myklebust nfs_free_createdata(data); 458eb872f0cSTrond Myklebust out: 4591da177e4SLinus Torvalds dprintk("NFS reply mkdir: %d\n", status); 4601da177e4SLinus Torvalds return status; 4611da177e4SLinus Torvalds } 4621da177e4SLinus Torvalds 4631da177e4SLinus Torvalds static int 464beffb8feSAl Viro nfs_proc_rmdir(struct inode *dir, const struct qstr *name) 4651da177e4SLinus Torvalds { 4661da177e4SLinus Torvalds struct nfs_diropargs arg = { 4671da177e4SLinus Torvalds .fh = NFS_FH(dir), 4681da177e4SLinus Torvalds .name = name->name, 4691da177e4SLinus Torvalds .len = name->len 4701da177e4SLinus Torvalds }; 471dead28daSChuck Lever struct rpc_message msg = { 472dead28daSChuck Lever .rpc_proc = &nfs_procedures[NFSPROC_RMDIR], 473dead28daSChuck Lever .rpc_argp = &arg, 474dead28daSChuck Lever }; 4751da177e4SLinus Torvalds int status; 4761da177e4SLinus Torvalds 4771da177e4SLinus Torvalds dprintk("NFS call rmdir %s\n", name->name); 478dead28daSChuck Lever status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 479decf491fSTrond Myklebust nfs_mark_for_revalidate(dir); 4801da177e4SLinus Torvalds dprintk("NFS reply rmdir: %d\n", status); 4811da177e4SLinus Torvalds return status; 4821da177e4SLinus Torvalds } 4831da177e4SLinus Torvalds 4841da177e4SLinus Torvalds /* 4851da177e4SLinus Torvalds * The READDIR implementation is somewhat hackish - we pass a temporary 4861da177e4SLinus Torvalds * buffer to the encode function, which installs it in the receive 4871da177e4SLinus Torvalds * the receive iovec. The decode function just parses the reply to make 4881da177e4SLinus Torvalds * sure it is syntactically correct; the entries itself are decoded 4891da177e4SLinus Torvalds * from nfs_readdir by calling the decode_entry function directly. 4901da177e4SLinus Torvalds */ 4911da177e4SLinus Torvalds static int 4921da177e4SLinus Torvalds nfs_proc_readdir(struct dentry *dentry, struct rpc_cred *cred, 493a7a3b1e9SBenjamin Coddington u64 cookie, struct page **pages, unsigned int count, bool plus) 4941da177e4SLinus Torvalds { 4952b0143b5SDavid Howells struct inode *dir = d_inode(dentry); 4961da177e4SLinus Torvalds struct nfs_readdirargs arg = { 4971da177e4SLinus Torvalds .fh = NFS_FH(dir), 4981da177e4SLinus Torvalds .cookie = cookie, 4991da177e4SLinus Torvalds .count = count, 50056e4ebf8SBryan Schumaker .pages = pages, 5011da177e4SLinus Torvalds }; 5021da177e4SLinus Torvalds struct rpc_message msg = { 5031da177e4SLinus Torvalds .rpc_proc = &nfs_procedures[NFSPROC_READDIR], 5041da177e4SLinus Torvalds .rpc_argp = &arg, 505dead28daSChuck Lever .rpc_cred = cred, 5061da177e4SLinus Torvalds }; 5071da177e4SLinus Torvalds int status; 5081da177e4SLinus Torvalds 5091da177e4SLinus Torvalds dprintk("NFS call readdir %d\n", (unsigned int)cookie); 5101da177e4SLinus Torvalds status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0); 5111da177e4SLinus Torvalds 512c4812998STrond Myklebust nfs_invalidate_atime(dir); 513c4812998STrond Myklebust 5141da177e4SLinus Torvalds dprintk("NFS reply readdir: %d\n", status); 5151da177e4SLinus Torvalds return status; 5161da177e4SLinus Torvalds } 5171da177e4SLinus Torvalds 5181da177e4SLinus Torvalds static int 5191da177e4SLinus Torvalds nfs_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle, 5201da177e4SLinus Torvalds struct nfs_fsstat *stat) 5211da177e4SLinus Torvalds { 5221da177e4SLinus Torvalds struct nfs2_fsstat fsinfo; 523dead28daSChuck Lever struct rpc_message msg = { 524dead28daSChuck Lever .rpc_proc = &nfs_procedures[NFSPROC_STATFS], 525dead28daSChuck Lever .rpc_argp = fhandle, 526dead28daSChuck Lever .rpc_resp = &fsinfo, 527dead28daSChuck Lever }; 5281da177e4SLinus Torvalds int status; 5291da177e4SLinus Torvalds 5301da177e4SLinus Torvalds dprintk("NFS call statfs\n"); 5310e574af1STrond Myklebust nfs_fattr_init(stat->fattr); 532dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 5331da177e4SLinus Torvalds dprintk("NFS reply statfs: %d\n", status); 5341da177e4SLinus Torvalds if (status) 5351da177e4SLinus Torvalds goto out; 5361da177e4SLinus Torvalds stat->tbytes = (u64)fsinfo.blocks * fsinfo.bsize; 5371da177e4SLinus Torvalds stat->fbytes = (u64)fsinfo.bfree * fsinfo.bsize; 5381da177e4SLinus Torvalds stat->abytes = (u64)fsinfo.bavail * fsinfo.bsize; 5391da177e4SLinus Torvalds stat->tfiles = 0; 5401da177e4SLinus Torvalds stat->ffiles = 0; 5411da177e4SLinus Torvalds stat->afiles = 0; 5421da177e4SLinus Torvalds out: 5431da177e4SLinus Torvalds return status; 5441da177e4SLinus Torvalds } 5451da177e4SLinus Torvalds 5461da177e4SLinus Torvalds static int 5471da177e4SLinus Torvalds nfs_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle, 5481da177e4SLinus Torvalds struct nfs_fsinfo *info) 5491da177e4SLinus Torvalds { 5501da177e4SLinus Torvalds struct nfs2_fsstat fsinfo; 551dead28daSChuck Lever struct rpc_message msg = { 552dead28daSChuck Lever .rpc_proc = &nfs_procedures[NFSPROC_STATFS], 553dead28daSChuck Lever .rpc_argp = fhandle, 554dead28daSChuck Lever .rpc_resp = &fsinfo, 555dead28daSChuck Lever }; 5561da177e4SLinus Torvalds int status; 5571da177e4SLinus Torvalds 5581da177e4SLinus Torvalds dprintk("NFS call fsinfo\n"); 5590e574af1STrond Myklebust nfs_fattr_init(info->fattr); 560dead28daSChuck Lever status = rpc_call_sync(server->client, &msg, 0); 5611da177e4SLinus Torvalds dprintk("NFS reply fsinfo: %d\n", status); 5621da177e4SLinus Torvalds if (status) 5631da177e4SLinus Torvalds goto out; 5641da177e4SLinus Torvalds info->rtmax = NFS_MAXDATA; 5651da177e4SLinus Torvalds info->rtpref = fsinfo.tsize; 5661da177e4SLinus Torvalds info->rtmult = fsinfo.bsize; 5671da177e4SLinus Torvalds info->wtmax = NFS_MAXDATA; 5681da177e4SLinus Torvalds info->wtpref = fsinfo.tsize; 5691da177e4SLinus Torvalds info->wtmult = fsinfo.bsize; 5701da177e4SLinus Torvalds info->dtpref = fsinfo.tsize; 5711da177e4SLinus Torvalds info->maxfilesize = 0x7FFFFFFF; 5721da177e4SLinus Torvalds info->lease_time = 0; 5731da177e4SLinus Torvalds out: 5741da177e4SLinus Torvalds return status; 5751da177e4SLinus Torvalds } 5761da177e4SLinus Torvalds 5771da177e4SLinus Torvalds static int 5781da177e4SLinus Torvalds nfs_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle, 5791da177e4SLinus Torvalds struct nfs_pathconf *info) 5801da177e4SLinus Torvalds { 5811da177e4SLinus Torvalds info->max_link = 0; 5821da177e4SLinus Torvalds info->max_namelen = NFS2_MAXNAMLEN; 5831da177e4SLinus Torvalds return 0; 5841da177e4SLinus Torvalds } 5851da177e4SLinus Torvalds 586d45f60c6SWeston Andros Adamson static int nfs_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr) 5871da177e4SLinus Torvalds { 588d45f60c6SWeston Andros Adamson struct inode *inode = hdr->inode; 589cd841605SFred Isaman 590cd841605SFred Isaman nfs_invalidate_atime(inode); 5911da177e4SLinus Torvalds if (task->tk_status >= 0) { 592d45f60c6SWeston Andros Adamson nfs_refresh_inode(inode, hdr->res.fattr); 5931da177e4SLinus Torvalds /* Emulate the eof flag, which isn't normally needed in NFSv2 5941da177e4SLinus Torvalds * as it is guaranteed to always return the file attributes 5951da177e4SLinus Torvalds */ 596d45f60c6SWeston Andros Adamson if (hdr->args.offset + hdr->res.count >= hdr->res.fattr->size) 597d45f60c6SWeston Andros Adamson hdr->res.eof = 1; 5981da177e4SLinus Torvalds } 599ec06c096STrond Myklebust return 0; 6001da177e4SLinus Torvalds } 6011da177e4SLinus Torvalds 602d45f60c6SWeston Andros Adamson static void nfs_proc_read_setup(struct nfs_pgio_header *hdr, 603d45f60c6SWeston Andros Adamson struct rpc_message *msg) 6041da177e4SLinus Torvalds { 605bdc7f021STrond Myklebust msg->rpc_proc = &nfs_procedures[NFSPROC_READ]; 6061da177e4SLinus Torvalds } 6071da177e4SLinus Torvalds 608d45f60c6SWeston Andros Adamson static int nfs_proc_pgio_rpc_prepare(struct rpc_task *task, 609d45f60c6SWeston Andros Adamson struct nfs_pgio_header *hdr) 610ea7c3303SBryan Schumaker { 611ea7c3303SBryan Schumaker rpc_call_start(task); 612ef1820f9SNeilBrown return 0; 613ea7c3303SBryan Schumaker } 614ea7c3303SBryan Schumaker 615d45f60c6SWeston Andros Adamson static int nfs_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr) 6161da177e4SLinus Torvalds { 6171da177e4SLinus Torvalds if (task->tk_status >= 0) 618a08a8cd3STrond Myklebust nfs_writeback_update_inode(hdr); 619788e7a89STrond Myklebust return 0; 6201da177e4SLinus Torvalds } 6211da177e4SLinus Torvalds 622d45f60c6SWeston Andros Adamson static void nfs_proc_write_setup(struct nfs_pgio_header *hdr, 623fb91fb0eSAnna Schumaker struct rpc_message *msg, 624fb91fb0eSAnna Schumaker struct rpc_clnt **clnt) 6251da177e4SLinus Torvalds { 6261da177e4SLinus Torvalds /* Note: NFSv2 ignores @stable and always uses NFS_FILE_SYNC */ 627d45f60c6SWeston Andros Adamson hdr->args.stable = NFS_FILE_SYNC; 628bdc7f021STrond Myklebust msg->rpc_proc = &nfs_procedures[NFSPROC_WRITE]; 6291da177e4SLinus Torvalds } 6301da177e4SLinus Torvalds 6310b7c0153SFred Isaman static void nfs_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data) 6320b7c0153SFred Isaman { 6330b7c0153SFred Isaman BUG(); 6340b7c0153SFred Isaman } 6350b7c0153SFred Isaman 6361da177e4SLinus Torvalds static void 637e9ae1ee2SAnna Schumaker nfs_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg, 638e9ae1ee2SAnna Schumaker struct rpc_clnt **clnt) 6391da177e4SLinus Torvalds { 6401da177e4SLinus Torvalds BUG(); 6411da177e4SLinus Torvalds } 6421da177e4SLinus Torvalds 6431da177e4SLinus Torvalds static int 6441da177e4SLinus Torvalds nfs_proc_lock(struct file *filp, int cmd, struct file_lock *fl) 6451da177e4SLinus Torvalds { 646496ad9aaSAl Viro struct inode *inode = file_inode(filp); 6471093a60eSChuck Lever 648b1ece737SBenjamin Coddington return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl, NULL); 6491da177e4SLinus Torvalds } 6501da177e4SLinus Torvalds 6512116271aSTrond Myklebust /* Helper functions for NFS lock bounds checking */ 6522116271aSTrond Myklebust #define NFS_LOCK32_OFFSET_MAX ((__s32)0x7fffffffUL) 6532116271aSTrond Myklebust static int nfs_lock_check_bounds(const struct file_lock *fl) 6542116271aSTrond Myklebust { 6552116271aSTrond Myklebust __s32 start, end; 6562116271aSTrond Myklebust 6572116271aSTrond Myklebust start = (__s32)fl->fl_start; 6582116271aSTrond Myklebust if ((loff_t)start != fl->fl_start) 6592116271aSTrond Myklebust goto out_einval; 6602116271aSTrond Myklebust 6612116271aSTrond Myklebust if (fl->fl_end != OFFSET_MAX) { 6622116271aSTrond Myklebust end = (__s32)fl->fl_end; 6632116271aSTrond Myklebust if ((loff_t)end != fl->fl_end) 6642116271aSTrond Myklebust goto out_einval; 6652116271aSTrond Myklebust } else 6662116271aSTrond Myklebust end = NFS_LOCK32_OFFSET_MAX; 6672116271aSTrond Myklebust 6682116271aSTrond Myklebust if (start < 0 || start > end) 6692116271aSTrond Myklebust goto out_einval; 6702116271aSTrond Myklebust return 0; 6712116271aSTrond Myklebust out_einval: 6722116271aSTrond Myklebust return -EINVAL; 6732116271aSTrond Myklebust } 6741da177e4SLinus Torvalds 675011e2a7fSBryan Schumaker static int nfs_have_delegation(struct inode *inode, fmode_t flags) 676011e2a7fSBryan Schumaker { 677011e2a7fSBryan Schumaker return 0; 678011e2a7fSBryan Schumaker } 679011e2a7fSBryan Schumaker 680597d9289SBryan Schumaker static const struct inode_operations nfs_dir_inode_operations = { 681597d9289SBryan Schumaker .create = nfs_create, 682597d9289SBryan Schumaker .lookup = nfs_lookup, 683597d9289SBryan Schumaker .link = nfs_link, 684597d9289SBryan Schumaker .unlink = nfs_unlink, 685597d9289SBryan Schumaker .symlink = nfs_symlink, 686597d9289SBryan Schumaker .mkdir = nfs_mkdir, 687597d9289SBryan Schumaker .rmdir = nfs_rmdir, 688597d9289SBryan Schumaker .mknod = nfs_mknod, 689597d9289SBryan Schumaker .rename = nfs_rename, 690597d9289SBryan Schumaker .permission = nfs_permission, 691597d9289SBryan Schumaker .getattr = nfs_getattr, 692597d9289SBryan Schumaker .setattr = nfs_setattr, 693597d9289SBryan Schumaker }; 694597d9289SBryan Schumaker 695597d9289SBryan Schumaker static const struct inode_operations nfs_file_inode_operations = { 696597d9289SBryan Schumaker .permission = nfs_permission, 697597d9289SBryan Schumaker .getattr = nfs_getattr, 698597d9289SBryan Schumaker .setattr = nfs_setattr, 699597d9289SBryan Schumaker }; 700597d9289SBryan Schumaker 701509de811SDavid Howells const struct nfs_rpc_ops nfs_v2_clientops = { 7021da177e4SLinus Torvalds .version = 2, /* protocol version */ 7031da177e4SLinus Torvalds .dentry_ops = &nfs_dentry_operations, 7041da177e4SLinus Torvalds .dir_inode_ops = &nfs_dir_inode_operations, 70592cfc62cSJ. Bruce Fields .file_inode_ops = &nfs_file_inode_operations, 7061788ea6eSJeff Layton .file_ops = &nfs_file_operations, 7071da177e4SLinus Torvalds .getroot = nfs_proc_get_root, 708281cad46SBryan Schumaker .submount = nfs_submount, 709ff9099f2SBryan Schumaker .try_mount = nfs_try_mount, 7101da177e4SLinus Torvalds .getattr = nfs_proc_getattr, 7111da177e4SLinus Torvalds .setattr = nfs_proc_setattr, 7121da177e4SLinus Torvalds .lookup = nfs_proc_lookup, 7131da177e4SLinus Torvalds .access = NULL, /* access */ 7141da177e4SLinus Torvalds .readlink = nfs_proc_readlink, 7151da177e4SLinus Torvalds .create = nfs_proc_create, 7161da177e4SLinus Torvalds .remove = nfs_proc_remove, 7171da177e4SLinus Torvalds .unlink_setup = nfs_proc_unlink_setup, 71834e137ccSBryan Schumaker .unlink_rpc_prepare = nfs_proc_unlink_rpc_prepare, 7191da177e4SLinus Torvalds .unlink_done = nfs_proc_unlink_done, 720d3d4152aSJeff Layton .rename_setup = nfs_proc_rename_setup, 721c6bfa1a1SBryan Schumaker .rename_rpc_prepare = nfs_proc_rename_rpc_prepare, 722d3d4152aSJeff Layton .rename_done = nfs_proc_rename_done, 7231da177e4SLinus Torvalds .link = nfs_proc_link, 7241da177e4SLinus Torvalds .symlink = nfs_proc_symlink, 7251da177e4SLinus Torvalds .mkdir = nfs_proc_mkdir, 7261da177e4SLinus Torvalds .rmdir = nfs_proc_rmdir, 7271da177e4SLinus Torvalds .readdir = nfs_proc_readdir, 7281da177e4SLinus Torvalds .mknod = nfs_proc_mknod, 7291da177e4SLinus Torvalds .statfs = nfs_proc_statfs, 7301da177e4SLinus Torvalds .fsinfo = nfs_proc_fsinfo, 7311da177e4SLinus Torvalds .pathconf = nfs_proc_pathconf, 732f796f8b3SChuck Lever .decode_dirent = nfs2_decode_dirent, 733a4cdda59SAnna Schumaker .pgio_rpc_prepare = nfs_proc_pgio_rpc_prepare, 7341da177e4SLinus Torvalds .read_setup = nfs_proc_read_setup, 735ec06c096STrond Myklebust .read_done = nfs_read_done, 7361da177e4SLinus Torvalds .write_setup = nfs_proc_write_setup, 737788e7a89STrond Myklebust .write_done = nfs_write_done, 7381da177e4SLinus Torvalds .commit_setup = nfs_proc_commit_setup, 7390b7c0153SFred Isaman .commit_rpc_prepare = nfs_proc_commit_rpc_prepare, 7401da177e4SLinus Torvalds .lock = nfs_proc_lock, 7412116271aSTrond Myklebust .lock_check_bounds = nfs_lock_check_bounds, 7427fe5c398STrond Myklebust .close_context = nfs_close_context, 743011e2a7fSBryan Schumaker .have_delegation = nfs_have_delegation, 7446663ee7fSBryan Schumaker .alloc_client = nfs_alloc_client, 74545a52a02SAndy Adamson .init_client = nfs_init_client, 746cdb7ecedSBryan Schumaker .free_client = nfs_free_client, 7471179acc6SBryan Schumaker .create_server = nfs_create_server, 7481179acc6SBryan Schumaker .clone_server = nfs_clone_server, 7491da177e4SLinus Torvalds }; 750