blob: e7daa42bbc86e888a7ebdc19e25aac30dfd3c3eb [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * linux/fs/nfs/nfs3proc.c
3 *
4 * Client-side NFSv3 procedures stubs.
5 *
6 * Copyright (C) 1997, Olaf Kirch
7 */
8
9#include <linux/mm.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070010#include <linux/errno.h>
11#include <linux/string.h>
12#include <linux/sunrpc/clnt.h>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090013#include <linux/slab.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070014#include <linux/nfs.h>
15#include <linux/nfs3.h>
16#include <linux/nfs_fs.h>
17#include <linux/nfs_page.h>
18#include <linux/lockd/bind.h>
Andreas Gruenbacherb7fa0552005-06-22 17:16:27 +000019#include <linux/nfs_mount.h>
Jeff Laytond3103102011-12-01 22:44:39 +010020#include <linux/freezer.h>
Tejun Heo0a6be652014-02-03 14:31:07 -050021#include <linux/xattr.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070022
Chuck Lever006ea732006-03-20 13:44:14 -050023#include "iostat.h"
David Howellsf7b422b2006-06-09 09:34:33 -040024#include "internal.h"
Chuck Lever006ea732006-03-20 13:44:14 -050025
Linus Torvalds1da177e2005-04-16 15:20:36 -070026#define NFSDBG_FACILITY NFSDBG_PROC
27
Andy Adamsoneb96d5c2012-11-27 10:34:19 -050028/* A wrapper to handle the EJUKEBOX error messages */
Linus Torvalds1da177e2005-04-16 15:20:36 -070029static int
30nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
31{
Linus Torvalds1da177e2005-04-16 15:20:36 -070032 int res;
Linus Torvalds1da177e2005-04-16 15:20:36 -070033 do {
34 res = rpc_call_sync(clnt, msg, flags);
Andy Adamsoneb96d5c2012-11-27 10:34:19 -050035 if (res != -EJUKEBOX)
Linus Torvalds1da177e2005-04-16 15:20:36 -070036 break;
Colin Cross416ad3c2013-05-06 23:50:06 +000037 freezable_schedule_timeout_killable_unsafe(NFS_JUKEBOX_RETRY_TIME);
Linus Torvalds1da177e2005-04-16 15:20:36 -070038 res = -ERESTARTSYS;
Matthew Wilcox150030b2007-12-06 16:24:39 -050039 } while (!fatal_signal_pending(current));
Linus Torvalds1da177e2005-04-16 15:20:36 -070040 return res;
41}
42
Chuck Leverdead28d2006-03-20 13:44:23 -050043#define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -070044
45static int
Chuck Lever006ea732006-03-20 13:44:14 -050046nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -070047{
Andy Adamsoneb96d5c2012-11-27 10:34:19 -050048 if (task->tk_status != -EJUKEBOX)
Linus Torvalds1da177e2005-04-16 15:20:36 -070049 return 0;
Jeff Laytonb68d69b2010-01-07 09:42:04 -050050 if (task->tk_status == -EJUKEBOX)
51 nfs_inc_stats(inode, NFSIOS_DELAY);
Linus Torvalds1da177e2005-04-16 15:20:36 -070052 task->tk_status = 0;
53 rpc_restart_call(task);
54 rpc_delay(task, NFS_JUKEBOX_RETRY_TIME);
55 return 1;
56}
57
J. Bruce Fields03c21732006-01-03 09:55:48 +010058static int
59do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle,
60 struct nfs_fsinfo *info)
61{
Chuck Leverdead28d2006-03-20 13:44:23 -050062 struct rpc_message msg = {
63 .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
64 .rpc_argp = fhandle,
65 .rpc_resp = info,
66 };
J. Bruce Fields03c21732006-01-03 09:55:48 +010067 int status;
68
Harvey Harrison3110ff82008-05-02 13:42:44 -070069 dprintk("%s: call fsinfo\n", __func__);
J. Bruce Fields03c21732006-01-03 09:55:48 +010070 nfs_fattr_init(info->fattr);
Chuck Leverdead28d2006-03-20 13:44:23 -050071 status = rpc_call_sync(client, &msg, 0);
Harvey Harrison3110ff82008-05-02 13:42:44 -070072 dprintk("%s: reply fsinfo: %d\n", __func__, status);
Trond Myklebust08660042012-08-20 12:42:15 -040073 if (status == 0 && !(info->fattr->valid & NFS_ATTR_FATTR)) {
Chuck Leverdead28d2006-03-20 13:44:23 -050074 msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
75 msg.rpc_resp = info->fattr;
76 status = rpc_call_sync(client, &msg, 0);
Harvey Harrison3110ff82008-05-02 13:42:44 -070077 dprintk("%s: reply getattr: %d\n", __func__, status);
J. Bruce Fields03c21732006-01-03 09:55:48 +010078 }
79 return status;
80}
81
Linus Torvalds1da177e2005-04-16 15:20:36 -070082/*
David Howells54ceac42006-08-22 20:06:13 -040083 * Bare-bones access to getattr: this is for nfs_get_root/nfs_get_sb
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 */
85static int
86nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
87 struct nfs_fsinfo *info)
88{
89 int status;
90
J. Bruce Fields03c21732006-01-03 09:55:48 +010091 status = do_proc_get_root(server->client, fhandle, info);
David Howells5006a762006-08-22 20:06:12 -040092 if (status && server->nfs_client->cl_rpcclient != server->client)
93 status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info);
Linus Torvalds1da177e2005-04-16 15:20:36 -070094 return status;
95}
96
97/*
98 * One function for each procedure in the NFS protocol.
99 */
100static int
101nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
David Quigley1775fd32013-05-22 12:50:42 -0400102 struct nfs_fattr *fattr, struct nfs4_label *label)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103{
Chuck Leverdead28d2006-03-20 13:44:23 -0500104 struct rpc_message msg = {
105 .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR],
106 .rpc_argp = fhandle,
107 .rpc_resp = fattr,
108 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109 int status;
110
111 dprintk("NFS call getattr\n");
Trond Myklebust0e574af2005-10-27 22:12:38 -0400112 nfs_fattr_init(fattr);
Chuck Leverdead28d2006-03-20 13:44:23 -0500113 status = rpc_call_sync(server->client, &msg, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114 dprintk("NFS reply getattr: %d\n", status);
115 return status;
116}
117
118static int
119nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
120 struct iattr *sattr)
121{
122 struct inode *inode = dentry->d_inode;
123 struct nfs3_sattrargs arg = {
124 .fh = NFS_FH(inode),
125 .sattr = sattr,
126 };
Chuck Leverdead28d2006-03-20 13:44:23 -0500127 struct rpc_message msg = {
128 .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR],
129 .rpc_argp = &arg,
130 .rpc_resp = fattr,
131 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132 int status;
133
134 dprintk("NFS call setattr\n");
Trond Myklebust659bfcd2008-06-10 19:39:41 -0400135 if (sattr->ia_valid & ATTR_FILE)
136 msg.rpc_cred = nfs_file_cred(sattr->ia_file);
Trond Myklebust0e574af2005-10-27 22:12:38 -0400137 nfs_fattr_init(fattr);
Chuck Leverdead28d2006-03-20 13:44:23 -0500138 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
Trond Myklebust65e43082005-08-16 11:49:44 -0400139 if (status == 0)
140 nfs_setattr_update_inode(inode, sattr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141 dprintk("NFS reply setattr: %d\n", status);
142 return status;
143}
144
145static int
Bryan Schumaker80a16b22012-04-27 13:27:46 -0400146nfs3_proc_lookup(struct inode *dir, struct qstr *name,
David Quigley1775fd32013-05-22 12:50:42 -0400147 struct nfs_fh *fhandle, struct nfs_fattr *fattr,
148 struct nfs4_label *label)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150 struct nfs3_diropargs arg = {
151 .fh = NFS_FH(dir),
152 .name = name->name,
153 .len = name->len
154 };
155 struct nfs3_diropres res = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156 .fh = fhandle,
157 .fattr = fattr
158 };
Chuck Leverdead28d2006-03-20 13:44:23 -0500159 struct rpc_message msg = {
160 .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP],
161 .rpc_argp = &arg,
162 .rpc_resp = &res,
163 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700164 int status;
165
166 dprintk("NFS call lookup %s\n", name->name);
Trond Myklebuste1fb4d02010-04-16 16:22:47 -0400167 res.dir_attr = nfs_alloc_fattr();
168 if (res.dir_attr == NULL)
169 return -ENOMEM;
170
Trond Myklebust0e574af2005-10-27 22:12:38 -0400171 nfs_fattr_init(fattr);
Chuck Leverdead28d2006-03-20 13:44:23 -0500172 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
Trond Myklebuste1fb4d02010-04-16 16:22:47 -0400173 nfs_refresh_inode(dir, res.dir_attr);
Chuck Leverdead28d2006-03-20 13:44:23 -0500174 if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) {
175 msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
176 msg.rpc_argp = fhandle;
177 msg.rpc_resp = fattr;
178 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
179 }
Trond Myklebuste1fb4d02010-04-16 16:22:47 -0400180 nfs_free_fattr(res.dir_attr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181 dprintk("NFS reply lookup: %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182 return status;
183}
184
185static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
186{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187 struct nfs3_accessargs arg = {
188 .fh = NFS_FH(inode),
189 };
Trond Myklebustc407d412010-04-16 16:22:48 -0400190 struct nfs3_accessres res;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700191 struct rpc_message msg = {
192 .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS],
193 .rpc_argp = &arg,
194 .rpc_resp = &res,
Chuck Leverdead28d2006-03-20 13:44:23 -0500195 .rpc_cred = entry->cred,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196 };
197 int mode = entry->mask;
Trond Myklebustc407d412010-04-16 16:22:48 -0400198 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700199
200 dprintk("NFS call access\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201
202 if (mode & MAY_READ)
203 arg.access |= NFS3_ACCESS_READ;
204 if (S_ISDIR(inode->i_mode)) {
205 if (mode & MAY_WRITE)
206 arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE;
207 if (mode & MAY_EXEC)
208 arg.access |= NFS3_ACCESS_LOOKUP;
209 } else {
210 if (mode & MAY_WRITE)
211 arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND;
212 if (mode & MAY_EXEC)
213 arg.access |= NFS3_ACCESS_EXECUTE;
214 }
Trond Myklebustc407d412010-04-16 16:22:48 -0400215
216 res.fattr = nfs_alloc_fattr();
217 if (res.fattr == NULL)
218 goto out;
219
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
Trond Myklebustc407d412010-04-16 16:22:48 -0400221 nfs_refresh_inode(inode, res.fattr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700222 if (status == 0) {
223 entry->mask = 0;
224 if (res.access & NFS3_ACCESS_READ)
225 entry->mask |= MAY_READ;
226 if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE))
227 entry->mask |= MAY_WRITE;
228 if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE))
229 entry->mask |= MAY_EXEC;
230 }
Trond Myklebustc407d412010-04-16 16:22:48 -0400231 nfs_free_fattr(res.fattr);
232out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233 dprintk("NFS reply access: %d\n", status);
234 return status;
235}
236
237static int nfs3_proc_readlink(struct inode *inode, struct page *page,
238 unsigned int pgbase, unsigned int pglen)
239{
Trond Myklebust3b14d652010-04-16 16:22:50 -0400240 struct nfs_fattr *fattr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241 struct nfs3_readlinkargs args = {
242 .fh = NFS_FH(inode),
243 .pgbase = pgbase,
244 .pglen = pglen,
245 .pages = &page
246 };
Chuck Leverdead28d2006-03-20 13:44:23 -0500247 struct rpc_message msg = {
248 .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK],
249 .rpc_argp = &args,
Chuck Leverdead28d2006-03-20 13:44:23 -0500250 };
Trond Myklebust3b14d652010-04-16 16:22:50 -0400251 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700252
253 dprintk("NFS call readlink\n");
Trond Myklebust3b14d652010-04-16 16:22:50 -0400254 fattr = nfs_alloc_fattr();
255 if (fattr == NULL)
256 goto out;
257 msg.rpc_resp = fattr;
258
Chuck Leverdead28d2006-03-20 13:44:23 -0500259 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
Trond Myklebust3b14d652010-04-16 16:22:50 -0400260 nfs_refresh_inode(inode, fattr);
261 nfs_free_fattr(fattr);
262out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263 dprintk("NFS reply readlink: %d\n", status);
264 return status;
265}
266
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400267struct nfs3_createdata {
268 struct rpc_message msg;
269 union {
270 struct nfs3_createargs create;
271 struct nfs3_mkdirargs mkdir;
272 struct nfs3_symlinkargs symlink;
273 struct nfs3_mknodargs mknod;
274 } arg;
275 struct nfs3_diropres res;
276 struct nfs_fh fh;
277 struct nfs_fattr fattr;
278 struct nfs_fattr dir_attr;
279};
280
281static struct nfs3_createdata *nfs3_alloc_createdata(void)
282{
283 struct nfs3_createdata *data;
284
285 data = kzalloc(sizeof(*data), GFP_KERNEL);
286 if (data != NULL) {
287 data->msg.rpc_argp = &data->arg;
288 data->msg.rpc_resp = &data->res;
289 data->res.fh = &data->fh;
290 data->res.fattr = &data->fattr;
291 data->res.dir_attr = &data->dir_attr;
292 nfs_fattr_init(data->res.fattr);
293 nfs_fattr_init(data->res.dir_attr);
294 }
295 return data;
296}
297
298static int nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data)
299{
300 int status;
301
302 status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0);
303 nfs_post_op_update_inode(dir, data->res.dir_attr);
304 if (status == 0)
David Quigley1775fd32013-05-22 12:50:42 -0400305 status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL);
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400306 return status;
307}
308
309static void nfs3_free_createdata(struct nfs3_createdata *data)
310{
311 kfree(data);
312}
313
Linus Torvalds1da177e2005-04-16 15:20:36 -0700314/*
315 * Create a regular file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700316 */
317static int
318nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
Miklos Szeredi8867fe52012-06-05 15:10:19 +0200319 int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700320{
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800321 struct posix_acl *default_acl, *acl;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400322 struct nfs3_createdata *data;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400323 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700324
Al Viro6de14722013-09-16 10:53:17 -0400325 dprintk("NFS call create %pd\n", dentry);
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400326
327 data = nfs3_alloc_createdata();
328 if (data == NULL)
329 goto out;
330
331 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE];
332 data->arg.create.fh = NFS_FH(dir);
333 data->arg.create.name = dentry->d_name.name;
334 data->arg.create.len = dentry->d_name.len;
335 data->arg.create.sattr = sattr;
336
337 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338 if (flags & O_EXCL) {
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400339 data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE;
Trond Myklebusta9943d12013-08-20 21:04:11 -0400340 data->arg.create.verifier[0] = cpu_to_be32(jiffies);
341 data->arg.create.verifier[1] = cpu_to_be32(current->pid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700342 }
343
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800344 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
345 if (status)
346 goto out;
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000347
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400348 for (;;) {
349 status = nfs3_do_create(dir, dentry, data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700350
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400351 if (status != -ENOTSUPP)
352 break;
353 /* If the server doesn't support the exclusive creation
354 * semantics, try again with simple 'guarded' mode. */
355 switch (data->arg.create.createmode) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700356 case NFS3_CREATE_EXCLUSIVE:
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400357 data->arg.create.createmode = NFS3_CREATE_GUARDED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700358 break;
359
360 case NFS3_CREATE_GUARDED:
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400361 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700362 break;
363
364 case NFS3_CREATE_UNCHECKED:
365 goto out;
366 }
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400367 nfs_fattr_init(data->res.dir_attr);
368 nfs_fattr_init(data->res.fattr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700369 }
370
Linus Torvalds1da177e2005-04-16 15:20:36 -0700371 if (status != 0)
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800372 goto out_release_acls;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700373
374 /* When we created the file with exclusive semantics, make
375 * sure we set the attributes afterwards. */
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400376 if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700377 dprintk("NFS call setattr (post-create)\n");
378
379 if (!(sattr->ia_valid & ATTR_ATIME_SET))
380 sattr->ia_valid |= ATTR_ATIME;
381 if (!(sattr->ia_valid & ATTR_MTIME_SET))
382 sattr->ia_valid |= ATTR_MTIME;
383
384 /* Note: we could use a guarded setattr here, but I'm
385 * not sure this buys us anything (and I'd have
386 * to revamp the NFSv3 XDR code) */
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400387 status = nfs3_proc_setattr(dentry, data->res.fattr, sattr);
388 nfs_post_op_update_inode(dentry->d_inode, data->res.fattr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700389 dprintk("NFS reply setattr (post-create): %d\n", status);
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400390 if (status != 0)
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800391 goto out_release_acls;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392 }
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800393
394 status = nfs3_proc_setacls(dentry->d_inode, acl, default_acl);
395
396out_release_acls:
397 posix_acl_release(acl);
398 posix_acl_release(default_acl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700399out:
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400400 nfs3_free_createdata(data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401 dprintk("NFS reply create: %d\n", status);
402 return status;
403}
404
405static int
406nfs3_proc_remove(struct inode *dir, struct qstr *name)
407{
Trond Myklebust4fdc17b2007-07-14 15:39:57 -0400408 struct nfs_removeargs arg = {
409 .fh = NFS_FH(dir),
Linus Torvalds26fe5752012-05-10 13:14:12 -0700410 .name = *name,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700411 };
Trond Myklebust4fdc17b2007-07-14 15:39:57 -0400412 struct nfs_removeres res;
413 struct rpc_message msg = {
414 .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE],
415 .rpc_argp = &arg,
416 .rpc_resp = &res,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700417 };
Trond Myklebustd3468902010-04-16 16:22:50 -0400418 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700419
420 dprintk("NFS call remove %s\n", name->name);
Trond Myklebustd3468902010-04-16 16:22:50 -0400421 res.dir_attr = nfs_alloc_fattr();
422 if (res.dir_attr == NULL)
423 goto out;
424
Linus Torvalds1da177e2005-04-16 15:20:36 -0700425 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
Trond Myklebustd3468902010-04-16 16:22:50 -0400426 nfs_post_op_update_inode(dir, res.dir_attr);
427 nfs_free_fattr(res.dir_attr);
428out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700429 dprintk("NFS reply remove: %d\n", status);
430 return status;
431}
432
Trond Myklebuste4eff1a2007-07-14 15:39:58 -0400433static void
434nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700435{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436 msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437}
438
Bryan Schumaker34e137c2012-03-19 14:54:41 -0400439static void nfs3_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data)
440{
441 rpc_call_start(task);
442}
443
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444static int
Trond Myklebuste4eff1a2007-07-14 15:39:58 -0400445nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446{
Trond Myklebuste4eff1a2007-07-14 15:39:58 -0400447 struct nfs_removeres *res;
448 if (nfs3_async_handle_jukebox(task, dir))
449 return 0;
450 res = task->tk_msg.rpc_resp;
Trond Myklebustd3468902010-04-16 16:22:50 -0400451 nfs_post_op_update_inode(dir, res->dir_attr);
Trond Myklebuste4eff1a2007-07-14 15:39:58 -0400452 return 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700453}
454
Jeff Laytond3d41522010-09-17 17:31:57 -0400455static void
456nfs3_proc_rename_setup(struct rpc_message *msg, struct inode *dir)
457{
458 msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME];
459}
460
Bryan Schumakerc6bfa1a2012-03-19 14:54:42 -0400461static void nfs3_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data)
462{
463 rpc_call_start(task);
464}
465
Jeff Laytond3d41522010-09-17 17:31:57 -0400466static int
467nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
468 struct inode *new_dir)
469{
470 struct nfs_renameres *res;
471
472 if (nfs3_async_handle_jukebox(task, old_dir))
473 return 0;
474 res = task->tk_msg.rpc_resp;
475
476 nfs_post_op_update_inode(old_dir, res->old_fattr);
477 nfs_post_op_update_inode(new_dir, res->new_fattr);
478 return 1;
479}
480
Linus Torvalds1da177e2005-04-16 15:20:36 -0700481static int
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
483{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484 struct nfs3_linkargs arg = {
485 .fromfh = NFS_FH(inode),
486 .tofh = NFS_FH(dir),
487 .toname = name->name,
488 .tolen = name->len
489 };
Trond Myklebust136f2622010-04-16 16:22:49 -0400490 struct nfs3_linkres res;
Chuck Leverdead28d2006-03-20 13:44:23 -0500491 struct rpc_message msg = {
492 .rpc_proc = &nfs3_procedures[NFS3PROC_LINK],
493 .rpc_argp = &arg,
494 .rpc_resp = &res,
495 };
Trond Myklebust136f2622010-04-16 16:22:49 -0400496 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700497
498 dprintk("NFS call link %s\n", name->name);
Trond Myklebust136f2622010-04-16 16:22:49 -0400499 res.fattr = nfs_alloc_fattr();
500 res.dir_attr = nfs_alloc_fattr();
501 if (res.fattr == NULL || res.dir_attr == NULL)
502 goto out;
503
Chuck Leverdead28d2006-03-20 13:44:23 -0500504 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
Trond Myklebust136f2622010-04-16 16:22:49 -0400505 nfs_post_op_update_inode(dir, res.dir_attr);
506 nfs_post_op_update_inode(inode, res.fattr);
507out:
508 nfs_free_fattr(res.dir_attr);
509 nfs_free_fattr(res.fattr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700510 dprintk("NFS reply link: %d\n", status);
511 return status;
512}
513
514static int
Chuck Lever94a6d752006-08-22 20:06:23 -0400515nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
516 unsigned int len, struct iattr *sattr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700517{
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400518 struct nfs3_createdata *data;
519 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700520
Chuck Lever94a6d752006-08-22 20:06:23 -0400521 if (len > NFS3_MAXPATHLEN)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700522 return -ENAMETOOLONG;
Chuck Lever4f390c12006-08-22 20:06:22 -0400523
Al Viro6de14722013-09-16 10:53:17 -0400524 dprintk("NFS call symlink %pd\n", dentry);
Chuck Lever94a6d752006-08-22 20:06:23 -0400525
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400526 data = nfs3_alloc_createdata();
527 if (data == NULL)
Chuck Lever4f390c12006-08-22 20:06:22 -0400528 goto out;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400529 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK];
530 data->arg.symlink.fromfh = NFS_FH(dir);
531 data->arg.symlink.fromname = dentry->d_name.name;
532 data->arg.symlink.fromlen = dentry->d_name.len;
533 data->arg.symlink.pages = &page;
534 data->arg.symlink.pathlen = len;
535 data->arg.symlink.sattr = sattr;
536
537 status = nfs3_do_create(dir, dentry, data);
538
539 nfs3_free_createdata(data);
Chuck Lever4f390c12006-08-22 20:06:22 -0400540out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700541 dprintk("NFS reply symlink: %d\n", status);
542 return status;
543}
544
545static int
546nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
547{
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800548 struct posix_acl *default_acl, *acl;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400549 struct nfs3_createdata *data;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400550 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700551
Al Viro6de14722013-09-16 10:53:17 -0400552 dprintk("NFS call mkdir %pd\n", dentry);
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000553
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400554 data = nfs3_alloc_createdata();
555 if (data == NULL)
556 goto out;
557
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800558 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
559 if (status)
560 goto out;
561
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400562 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR];
563 data->arg.mkdir.fh = NFS_FH(dir);
564 data->arg.mkdir.name = dentry->d_name.name;
565 data->arg.mkdir.len = dentry->d_name.len;
566 data->arg.mkdir.sattr = sattr;
567
568 status = nfs3_do_create(dir, dentry, data);
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000569 if (status != 0)
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800570 goto out_release_acls;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400571
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800572 status = nfs3_proc_setacls(dentry->d_inode, acl, default_acl);
573
574out_release_acls:
575 posix_acl_release(acl);
576 posix_acl_release(default_acl);
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000577out:
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400578 nfs3_free_createdata(data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579 dprintk("NFS reply mkdir: %d\n", status);
580 return status;
581}
582
583static int
584nfs3_proc_rmdir(struct inode *dir, struct qstr *name)
585{
Trond Myklebust39967dd2010-04-16 16:22:50 -0400586 struct nfs_fattr *dir_attr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700587 struct nfs3_diropargs arg = {
588 .fh = NFS_FH(dir),
589 .name = name->name,
590 .len = name->len
591 };
Chuck Leverdead28d2006-03-20 13:44:23 -0500592 struct rpc_message msg = {
593 .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR],
594 .rpc_argp = &arg,
Chuck Leverdead28d2006-03-20 13:44:23 -0500595 };
Trond Myklebust39967dd2010-04-16 16:22:50 -0400596 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700597
598 dprintk("NFS call rmdir %s\n", name->name);
Trond Myklebust39967dd2010-04-16 16:22:50 -0400599 dir_attr = nfs_alloc_fattr();
600 if (dir_attr == NULL)
601 goto out;
602
603 msg.rpc_resp = dir_attr;
Chuck Leverdead28d2006-03-20 13:44:23 -0500604 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
Trond Myklebust39967dd2010-04-16 16:22:50 -0400605 nfs_post_op_update_inode(dir, dir_attr);
606 nfs_free_fattr(dir_attr);
607out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700608 dprintk("NFS reply rmdir: %d\n", status);
609 return status;
610}
611
612/*
613 * The READDIR implementation is somewhat hackish - we pass the user buffer
614 * to the encode function, which installs it in the receive iovec.
615 * The decode function itself doesn't perform any decoding, it just makes
616 * sure the reply is syntactically correct.
617 *
618 * Also note that this implementation handles both plain readdir and
619 * readdirplus.
620 */
621static int
622nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
Bryan Schumaker56e4ebf2010-10-20 15:44:37 -0400623 u64 cookie, struct page **pages, unsigned int count, int plus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700624{
625 struct inode *dir = dentry->d_inode;
Trond Myklebustc3f52af2012-09-03 14:56:02 -0400626 __be32 *verf = NFS_I(dir)->cookieverf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700627 struct nfs3_readdirargs arg = {
628 .fh = NFS_FH(dir),
629 .cookie = cookie,
630 .verf = {verf[0], verf[1]},
631 .plus = plus,
632 .count = count,
Bryan Schumaker56e4ebf2010-10-20 15:44:37 -0400633 .pages = pages
Linus Torvalds1da177e2005-04-16 15:20:36 -0700634 };
635 struct nfs3_readdirres res = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636 .verf = verf,
637 .plus = plus
638 };
639 struct rpc_message msg = {
640 .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR],
641 .rpc_argp = &arg,
642 .rpc_resp = &res,
643 .rpc_cred = cred
644 };
Trond Myklebustaa49b4c2010-04-16 16:22:49 -0400645 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700646
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647 if (plus)
648 msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS];
649
650 dprintk("NFS call readdir%s %d\n",
651 plus? "plus" : "", (unsigned int) cookie);
652
Trond Myklebustaa49b4c2010-04-16 16:22:49 -0400653 res.dir_attr = nfs_alloc_fattr();
654 if (res.dir_attr == NULL)
655 goto out;
656
Linus Torvalds1da177e2005-04-16 15:20:36 -0700657 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
Trond Myklebustc4812992007-09-28 17:11:45 -0400658
659 nfs_invalidate_atime(dir);
Trond Myklebustaa49b4c2010-04-16 16:22:49 -0400660 nfs_refresh_inode(dir, res.dir_attr);
Trond Myklebustc4812992007-09-28 17:11:45 -0400661
Trond Myklebustaa49b4c2010-04-16 16:22:49 -0400662 nfs_free_fattr(res.dir_attr);
663out:
Chuck Leverd141d972010-09-21 16:55:47 -0400664 dprintk("NFS reply readdir%s: %d\n",
665 plus? "plus" : "", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666 return status;
667}
668
669static int
670nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
671 dev_t rdev)
672{
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800673 struct posix_acl *default_acl, *acl;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400674 struct nfs3_createdata *data;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400675 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676
Al Viro6de14722013-09-16 10:53:17 -0400677 dprintk("NFS call mknod %pd %u:%u\n", dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678 MAJOR(rdev), MINOR(rdev));
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000679
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400680 data = nfs3_alloc_createdata();
681 if (data == NULL)
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000682 goto out;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400683
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800684 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
685 if (status)
686 goto out;
687
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400688 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD];
689 data->arg.mknod.fh = NFS_FH(dir);
690 data->arg.mknod.name = dentry->d_name.name;
691 data->arg.mknod.len = dentry->d_name.len;
692 data->arg.mknod.sattr = sattr;
693 data->arg.mknod.rdev = rdev;
694
695 switch (sattr->ia_mode & S_IFMT) {
696 case S_IFBLK:
697 data->arg.mknod.type = NF3BLK;
698 break;
699 case S_IFCHR:
700 data->arg.mknod.type = NF3CHR;
701 break;
702 case S_IFIFO:
703 data->arg.mknod.type = NF3FIFO;
704 break;
705 case S_IFSOCK:
706 data->arg.mknod.type = NF3SOCK;
707 break;
708 default:
709 status = -EINVAL;
710 goto out;
711 }
712
713 status = nfs3_do_create(dir, dentry, data);
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000714 if (status != 0)
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800715 goto out_release_acls;
716
717 status = nfs3_proc_setacls(dentry->d_inode, acl, default_acl);
718
719out_release_acls:
720 posix_acl_release(acl);
721 posix_acl_release(default_acl);
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000722out:
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400723 nfs3_free_createdata(data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700724 dprintk("NFS reply mknod: %d\n", status);
725 return status;
726}
727
728static int
729nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
730 struct nfs_fsstat *stat)
731{
Chuck Leverdead28d2006-03-20 13:44:23 -0500732 struct rpc_message msg = {
733 .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT],
734 .rpc_argp = fhandle,
735 .rpc_resp = stat,
736 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700737 int status;
738
739 dprintk("NFS call fsstat\n");
Trond Myklebust0e574af2005-10-27 22:12:38 -0400740 nfs_fattr_init(stat->fattr);
Chuck Leverdead28d2006-03-20 13:44:23 -0500741 status = rpc_call_sync(server->client, &msg, 0);
Chuck Leverd141d972010-09-21 16:55:47 -0400742 dprintk("NFS reply fsstat: %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700743 return status;
744}
745
746static int
EG Keizer37ca8f52008-08-19 16:34:36 -0400747do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700748 struct nfs_fsinfo *info)
749{
Chuck Leverdead28d2006-03-20 13:44:23 -0500750 struct rpc_message msg = {
751 .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
752 .rpc_argp = fhandle,
753 .rpc_resp = info,
754 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700755 int status;
756
757 dprintk("NFS call fsinfo\n");
Trond Myklebust0e574af2005-10-27 22:12:38 -0400758 nfs_fattr_init(info->fattr);
EG Keizer37ca8f52008-08-19 16:34:36 -0400759 status = rpc_call_sync(client, &msg, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700760 dprintk("NFS reply fsinfo: %d\n", status);
761 return status;
762}
763
EG Keizer37ca8f52008-08-19 16:34:36 -0400764/*
765 * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via
766 * nfs_create_server
767 */
768static int
769nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
770 struct nfs_fsinfo *info)
771{
772 int status;
773
774 status = do_proc_fsinfo(server->client, fhandle, info);
775 if (status && server->nfs_client->cl_rpcclient != server->client)
776 status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info);
777 return status;
778}
779
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780static int
781nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
782 struct nfs_pathconf *info)
783{
Chuck Leverdead28d2006-03-20 13:44:23 -0500784 struct rpc_message msg = {
785 .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF],
786 .rpc_argp = fhandle,
787 .rpc_resp = info,
788 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700789 int status;
790
791 dprintk("NFS call pathconf\n");
Trond Myklebust0e574af2005-10-27 22:12:38 -0400792 nfs_fattr_init(info->fattr);
Chuck Leverdead28d2006-03-20 13:44:23 -0500793 status = rpc_call_sync(server->client, &msg, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794 dprintk("NFS reply pathconf: %d\n", status);
795 return status;
796}
797
Anna Schumaker9c7e1b32014-05-06 09:12:26 -0400798static int nfs3_read_done(struct rpc_task *task, struct nfs_pgio_data *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700799{
Fred Isamancd841602012-04-20 14:47:44 -0400800 struct inode *inode = data->header->inode;
801
802 if (nfs3_async_handle_jukebox(task, inode))
Trond Myklebustec06c092006-03-20 13:44:27 -0500803 return -EAGAIN;
Trond Myklebust8850df92007-09-28 17:20:07 -0400804
Fred Isamancd841602012-04-20 14:47:44 -0400805 nfs_invalidate_atime(inode);
806 nfs_refresh_inode(inode, &data->fattr);
Trond Myklebustec06c092006-03-20 13:44:27 -0500807 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700808}
809
Anna Schumaker9c7e1b32014-05-06 09:12:26 -0400810static void nfs3_proc_read_setup(struct nfs_pgio_data *data, struct rpc_message *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700811{
Trond Myklebustbdc7f022007-07-14 15:40:00 -0400812 msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700813}
814
Anna Schumakera4cdda52014-05-06 09:12:31 -0400815static int nfs3_proc_pgio_rpc_prepare(struct rpc_task *task, struct nfs_pgio_data *data)
Bryan Schumakerea7c3302012-03-19 14:54:40 -0400816{
817 rpc_call_start(task);
NeilBrownef1820f2013-09-04 17:04:49 +1000818 return 0;
Bryan Schumakerea7c3302012-03-19 14:54:40 -0400819}
820
Anna Schumaker9c7e1b32014-05-06 09:12:26 -0400821static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_data *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822{
Fred Isamancd841602012-04-20 14:47:44 -0400823 struct inode *inode = data->header->inode;
824
825 if (nfs3_async_handle_jukebox(task, inode))
Trond Myklebust788e7a82006-03-20 13:44:27 -0500826 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827 if (task->tk_status >= 0)
Fred Isamancd841602012-04-20 14:47:44 -0400828 nfs_post_op_update_inode_force_wcc(inode, data->res.fattr);
Trond Myklebust788e7a82006-03-20 13:44:27 -0500829 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700830}
831
Anna Schumaker9c7e1b32014-05-06 09:12:26 -0400832static void nfs3_proc_write_setup(struct nfs_pgio_data *data, struct rpc_message *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700833{
Trond Myklebustbdc7f022007-07-14 15:40:00 -0400834 msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835}
836
Fred Isaman0b7c0152012-04-20 14:47:39 -0400837static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
838{
839 rpc_call_start(task);
840}
841
842static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843{
Chuck Lever006ea732006-03-20 13:44:14 -0500844 if (nfs3_async_handle_jukebox(task, data->inode))
Trond Myklebust788e7a82006-03-20 13:44:27 -0500845 return -EAGAIN;
Trond Myklebust9e08a3c2007-10-08 14:10:31 -0400846 nfs_refresh_inode(data->inode, data->res.fattr);
Trond Myklebust788e7a82006-03-20 13:44:27 -0500847 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700848}
849
Fred Isaman0b7c0152012-04-20 14:47:39 -0400850static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851{
Trond Myklebustbdc7f022007-07-14 15:40:00 -0400852 msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853}
854
855static int
856nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
857{
Al Viro496ad9a2013-01-23 17:07:38 -0500858 struct inode *inode = file_inode(filp);
Chuck Lever1093a602008-01-11 17:09:59 -0500859
860 return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861}
862
Bryan Schumaker011e2a72012-06-20 15:53:43 -0400863static int nfs3_have_delegation(struct inode *inode, fmode_t flags)
864{
865 return 0;
866}
867
Bryan Schumaker57ec14c2012-06-20 15:53:44 -0400868static int nfs3_return_delegation(struct inode *inode)
869{
870 nfs_wb_all(inode);
871 return 0;
872}
873
Bryan Schumakerab962912012-07-16 16:39:11 -0400874static const struct inode_operations nfs3_dir_inode_operations = {
875 .create = nfs_create,
876 .lookup = nfs_lookup,
877 .link = nfs_link,
878 .unlink = nfs_unlink,
879 .symlink = nfs_symlink,
880 .mkdir = nfs_mkdir,
881 .rmdir = nfs_rmdir,
882 .mknod = nfs_mknod,
883 .rename = nfs_rename,
884 .permission = nfs_permission,
885 .getattr = nfs_getattr,
886 .setattr = nfs_setattr,
Christoph Hellwig5f13ee92014-01-30 06:01:52 -0800887#ifdef CONFIG_NFS_V3_ACL
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800888 .listxattr = generic_listxattr,
889 .getxattr = generic_getxattr,
890 .setxattr = generic_setxattr,
891 .removexattr = generic_removexattr,
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800892 .get_acl = nfs3_get_acl,
893 .set_acl = nfs3_set_acl,
894#endif
Bryan Schumakerab962912012-07-16 16:39:11 -0400895};
896
897static const struct inode_operations nfs3_file_inode_operations = {
898 .permission = nfs_permission,
899 .getattr = nfs_getattr,
900 .setattr = nfs_setattr,
Christoph Hellwig5f13ee92014-01-30 06:01:52 -0800901#ifdef CONFIG_NFS_V3_ACL
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800902 .listxattr = generic_listxattr,
903 .getxattr = generic_getxattr,
904 .setxattr = generic_setxattr,
905 .removexattr = generic_removexattr,
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800906 .get_acl = nfs3_get_acl,
907 .set_acl = nfs3_set_acl,
908#endif
Bryan Schumakerab962912012-07-16 16:39:11 -0400909};
910
David Howells509de812006-08-22 20:06:11 -0400911const struct nfs_rpc_ops nfs_v3_clientops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700912 .version = 3, /* protocol version */
913 .dentry_ops = &nfs_dentry_operations,
Andreas Gruenbacherb7fa0552005-06-22 17:16:27 +0000914 .dir_inode_ops = &nfs3_dir_inode_operations,
915 .file_inode_ops = &nfs3_file_inode_operations,
Jeff Layton1788ea62011-11-04 13:31:21 -0400916 .file_ops = &nfs_file_operations,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917 .getroot = nfs3_proc_get_root,
Bryan Schumaker281cad42012-04-27 13:27:45 -0400918 .submount = nfs_submount,
Bryan Schumakerff9099f22012-07-30 16:05:18 -0400919 .try_mount = nfs_try_mount,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920 .getattr = nfs3_proc_getattr,
921 .setattr = nfs3_proc_setattr,
922 .lookup = nfs3_proc_lookup,
923 .access = nfs3_proc_access,
924 .readlink = nfs3_proc_readlink,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925 .create = nfs3_proc_create,
926 .remove = nfs3_proc_remove,
927 .unlink_setup = nfs3_proc_unlink_setup,
Bryan Schumaker34e137c2012-03-19 14:54:41 -0400928 .unlink_rpc_prepare = nfs3_proc_unlink_rpc_prepare,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700929 .unlink_done = nfs3_proc_unlink_done,
Jeff Laytond3d41522010-09-17 17:31:57 -0400930 .rename_setup = nfs3_proc_rename_setup,
Bryan Schumakerc6bfa1a2012-03-19 14:54:42 -0400931 .rename_rpc_prepare = nfs3_proc_rename_rpc_prepare,
Jeff Laytond3d41522010-09-17 17:31:57 -0400932 .rename_done = nfs3_proc_rename_done,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933 .link = nfs3_proc_link,
934 .symlink = nfs3_proc_symlink,
935 .mkdir = nfs3_proc_mkdir,
936 .rmdir = nfs3_proc_rmdir,
937 .readdir = nfs3_proc_readdir,
938 .mknod = nfs3_proc_mknod,
939 .statfs = nfs3_proc_statfs,
940 .fsinfo = nfs3_proc_fsinfo,
941 .pathconf = nfs3_proc_pathconf,
942 .decode_dirent = nfs3_decode_dirent,
Anna Schumakera4cdda52014-05-06 09:12:31 -0400943 .pgio_rpc_prepare = nfs3_proc_pgio_rpc_prepare,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944 .read_setup = nfs3_proc_read_setup,
Trond Myklebustec06c092006-03-20 13:44:27 -0500945 .read_done = nfs3_read_done,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946 .write_setup = nfs3_proc_write_setup,
Trond Myklebust788e7a82006-03-20 13:44:27 -0500947 .write_done = nfs3_write_done,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700948 .commit_setup = nfs3_proc_commit_setup,
Fred Isaman0b7c0152012-04-20 14:47:39 -0400949 .commit_rpc_prepare = nfs3_proc_commit_rpc_prepare,
Trond Myklebust788e7a82006-03-20 13:44:27 -0500950 .commit_done = nfs3_commit_done,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700951 .lock = nfs3_proc_lock,
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800952 .clear_acl_cache = forget_all_cached_acls,
Trond Myklebust7fe5c392009-03-19 15:35:50 -0400953 .close_context = nfs_close_context,
Bryan Schumaker011e2a72012-06-20 15:53:43 -0400954 .have_delegation = nfs3_have_delegation,
Bryan Schumaker57ec14c2012-06-20 15:53:44 -0400955 .return_delegation = nfs3_return_delegation,
Bryan Schumaker6663ee72012-06-20 15:53:46 -0400956 .alloc_client = nfs_alloc_client,
Andy Adamson45a52a02011-03-01 01:34:08 +0000957 .init_client = nfs_init_client,
Bryan Schumakercdb7ece2012-06-20 15:53:45 -0400958 .free_client = nfs_free_client,
Bryan Schumaker1179acc2012-07-30 16:05:19 -0400959 .create_server = nfs3_create_server,
960 .clone_server = nfs3_clone_server,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961};