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[WATCHDOG] mpc83xx_wdt: convert to the OF platform driver
[linux-2.6/linux-2.6-openrd.git] / fs / nfs / nfs3proc.c
blob1e750e4574a911e982606265edb63033be870de4
1 /*
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>
10 #include <linux/utsname.h>
11 #include <linux/errno.h>
12 #include <linux/string.h>
13 #include <linux/sunrpc/clnt.h>
14 #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>
19 #include <linux/nfs_mount.h>
20
21 #include "iostat.h"
22 #include "internal.h"
23
24 #define NFSDBG_FACILITY NFSDBG_PROC
25
26 /* A wrapper to handle the EJUKEBOX error message */
27 static int
28 nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
29 {
30 int res;
31 do {
32 res = rpc_call_sync(clnt, msg, flags);
33 if (res != -EJUKEBOX)
34 break;
35 schedule_timeout_killable(NFS_JUKEBOX_RETRY_TIME);
36 res = -ERESTARTSYS;
37 } while (!fatal_signal_pending(current));
38 return res;
39 }
40
41 #define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags)
42
43 static int
44 nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode)
45 {
46 if (task->tk_status != -EJUKEBOX)
47 return 0;
48 nfs_inc_stats(inode, NFSIOS_DELAY);
49 task->tk_status = 0;
50 rpc_restart_call(task);
51 rpc_delay(task, NFS_JUKEBOX_RETRY_TIME);
52 return 1;
53 }
54
55 static int
56 do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle,
57 struct nfs_fsinfo *info)
58 {
59 struct rpc_message msg = {
60 .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
61 .rpc_argp = fhandle,
62 .rpc_resp = info,
63 };
64 int status;
65
66 dprintk("%s: call fsinfo\n", __func__);
67 nfs_fattr_init(info->fattr);
68 status = rpc_call_sync(client, &msg, 0);
69 dprintk("%s: reply fsinfo: %d\n", __func__, status);
70 if (!(info->fattr->valid & NFS_ATTR_FATTR)) {
71 msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
72 msg.rpc_resp = info->fattr;
73 status = rpc_call_sync(client, &msg, 0);
74 dprintk("%s: reply getattr: %d\n", __func__, status);
75 }
76 return status;
77 }
78
79 /*
80 * Bare-bones access to getattr: this is for nfs_get_root/nfs_get_sb
81 */
82 static int
83 nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
84 struct nfs_fsinfo *info)
85 {
86 int status;
87
88 status = do_proc_get_root(server->client, fhandle, info);
89 if (status && server->nfs_client->cl_rpcclient != server->client)
90 status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info);
91 return status;
92 }
93
94 /*
95 * One function for each procedure in the NFS protocol.
96 */
97 static int
98 nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
99 struct nfs_fattr *fattr)
100 {
101 struct rpc_message msg = {
102 .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR],
103 .rpc_argp = fhandle,
104 .rpc_resp = fattr,
105 };
106 int status;
107
108 dprintk("NFS call getattr\n");
109 nfs_fattr_init(fattr);
110 status = rpc_call_sync(server->client, &msg, 0);
111 dprintk("NFS reply getattr: %d\n", status);
112 return status;
113 }
114
115 static int
116 nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
117 struct iattr *sattr)
118 {
119 struct inode *inode = dentry->d_inode;
120 struct nfs3_sattrargs arg = {
121 .fh = NFS_FH(inode),
122 .sattr = sattr,
123 };
124 struct rpc_message msg = {
125 .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR],
126 .rpc_argp = &arg,
127 .rpc_resp = fattr,
128 };
129 int status;
130
131 dprintk("NFS call setattr\n");
132 if (sattr->ia_valid & ATTR_FILE)
133 msg.rpc_cred = nfs_file_cred(sattr->ia_file);
134 nfs_fattr_init(fattr);
135 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
136 if (status == 0)
137 nfs_setattr_update_inode(inode, sattr);
138 dprintk("NFS reply setattr: %d\n", status);
139 return status;
140 }
141
142 static int
143 nfs3_proc_lookup(struct inode *dir, struct qstr *name,
144 struct nfs_fh *fhandle, struct nfs_fattr *fattr)
145 {
146 struct nfs_fattr dir_attr;
147 struct nfs3_diropargs arg = {
148 .fh = NFS_FH(dir),
149 .name = name->name,
150 .len = name->len
151 };
152 struct nfs3_diropres res = {
153 .dir_attr = &dir_attr,
154 .fh = fhandle,
155 .fattr = fattr
156 };
157 struct rpc_message msg = {
158 .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP],
159 .rpc_argp = &arg,
160 .rpc_resp = &res,
161 };
162 int status;
163
164 dprintk("NFS call lookup %s\n", name->name);
165 nfs_fattr_init(&dir_attr);
166 nfs_fattr_init(fattr);
167 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
168 nfs_refresh_inode(dir, &dir_attr);
169 if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) {
170 msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
171 msg.rpc_argp = fhandle;
172 msg.rpc_resp = fattr;
173 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
174 }
175 dprintk("NFS reply lookup: %d\n", status);
176 return status;
177 }
178
179 static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
180 {
181 struct nfs_fattr fattr;
182 struct nfs3_accessargs arg = {
183 .fh = NFS_FH(inode),
184 };
185 struct nfs3_accessres res = {
186 .fattr = &fattr,
187 };
188 struct rpc_message msg = {
189 .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS],
190 .rpc_argp = &arg,
191 .rpc_resp = &res,
192 .rpc_cred = entry->cred,
193 };
194 int mode = entry->mask;
195 int status;
196
197 dprintk("NFS call access\n");
198
199 if (mode & MAY_READ)
200 arg.access |= NFS3_ACCESS_READ;
201 if (S_ISDIR(inode->i_mode)) {
202 if (mode & MAY_WRITE)
203 arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE;
204 if (mode & MAY_EXEC)
205 arg.access |= NFS3_ACCESS_LOOKUP;
206 } else {
207 if (mode & MAY_WRITE)
208 arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND;
209 if (mode & MAY_EXEC)
210 arg.access |= NFS3_ACCESS_EXECUTE;
211 }
212 nfs_fattr_init(&fattr);
213 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
214 nfs_refresh_inode(inode, &fattr);
215 if (status == 0) {
216 entry->mask = 0;
217 if (res.access & NFS3_ACCESS_READ)
218 entry->mask |= MAY_READ;
219 if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE))
220 entry->mask |= MAY_WRITE;
221 if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE))
222 entry->mask |= MAY_EXEC;
223 }
224 dprintk("NFS reply access: %d\n", status);
225 return status;
226 }
227
228 static int nfs3_proc_readlink(struct inode *inode, struct page *page,
229 unsigned int pgbase, unsigned int pglen)
230 {
231 struct nfs_fattr fattr;
232 struct nfs3_readlinkargs args = {
233 .fh = NFS_FH(inode),
234 .pgbase = pgbase,
235 .pglen = pglen,
236 .pages = &page
237 };
238 struct rpc_message msg = {
239 .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK],
240 .rpc_argp = &args,
241 .rpc_resp = &fattr,
242 };
243 int status;
244
245 dprintk("NFS call readlink\n");
246 nfs_fattr_init(&fattr);
247 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
248 nfs_refresh_inode(inode, &fattr);
249 dprintk("NFS reply readlink: %d\n", status);
250 return status;
251 }
252
253 struct nfs3_createdata {
254 struct rpc_message msg;
255 union {
256 struct nfs3_createargs create;
257 struct nfs3_mkdirargs mkdir;
258 struct nfs3_symlinkargs symlink;
259 struct nfs3_mknodargs mknod;
260 } arg;
261 struct nfs3_diropres res;
262 struct nfs_fh fh;
263 struct nfs_fattr fattr;
264 struct nfs_fattr dir_attr;
265 };
266
267 static struct nfs3_createdata *nfs3_alloc_createdata(void)
268 {
269 struct nfs3_createdata *data;
270
271 data = kzalloc(sizeof(*data), GFP_KERNEL);
272 if (data != NULL) {
273 data->msg.rpc_argp = &data->arg;
274 data->msg.rpc_resp = &data->res;
275 data->res.fh = &data->fh;
276 data->res.fattr = &data->fattr;
277 data->res.dir_attr = &data->dir_attr;
278 nfs_fattr_init(data->res.fattr);
279 nfs_fattr_init(data->res.dir_attr);
280 }
281 return data;
282 }
283
284 static int nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data)
285 {
286 int status;
287
288 status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0);
289 nfs_post_op_update_inode(dir, data->res.dir_attr);
290 if (status == 0)
291 status = nfs_instantiate(dentry, data->res.fh, data->res.fattr);
292 return status;
293 }
294
295 static void nfs3_free_createdata(struct nfs3_createdata *data)
296 {
297 kfree(data);
298 }
299
300 /*
301 * Create a regular file.
302 * For now, we don't implement O_EXCL.
303 */
304 static int
305 nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
306 int flags, struct nameidata *nd)
307 {
308 struct nfs3_createdata *data;
309 mode_t mode = sattr->ia_mode;
310 int status = -ENOMEM;
311
312 dprintk("NFS call create %s\n", dentry->d_name.name);
313
314 data = nfs3_alloc_createdata();
315 if (data == NULL)
316 goto out;
317
318 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE];
319 data->arg.create.fh = NFS_FH(dir);
320 data->arg.create.name = dentry->d_name.name;
321 data->arg.create.len = dentry->d_name.len;
322 data->arg.create.sattr = sattr;
323
324 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
325 if (flags & O_EXCL) {
326 data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE;
327 data->arg.create.verifier[0] = jiffies;
328 data->arg.create.verifier[1] = current->pid;
329 }
330
331 sattr->ia_mode &= ~current->fs->umask;
332
333 for (;;) {
334 status = nfs3_do_create(dir, dentry, data);
335
336 if (status != -ENOTSUPP)
337 break;
338 /* If the server doesn't support the exclusive creation
339 * semantics, try again with simple 'guarded' mode. */
340 switch (data->arg.create.createmode) {
341 case NFS3_CREATE_EXCLUSIVE:
342 data->arg.create.createmode = NFS3_CREATE_GUARDED;
343 break;
344
345 case NFS3_CREATE_GUARDED:
346 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
347 break;
348
349 case NFS3_CREATE_UNCHECKED:
350 goto out;
351 }
352 nfs_fattr_init(data->res.dir_attr);
353 nfs_fattr_init(data->res.fattr);
354 }
355
356 if (status != 0)
357 goto out;
358
359 /* When we created the file with exclusive semantics, make
360 * sure we set the attributes afterwards. */
361 if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) {
362 dprintk("NFS call setattr (post-create)\n");
363
364 if (!(sattr->ia_valid & ATTR_ATIME_SET))
365 sattr->ia_valid |= ATTR_ATIME;
366 if (!(sattr->ia_valid & ATTR_MTIME_SET))
367 sattr->ia_valid |= ATTR_MTIME;
368
369 /* Note: we could use a guarded setattr here, but I'm
370 * not sure this buys us anything (and I'd have
371 * to revamp the NFSv3 XDR code) */
372 status = nfs3_proc_setattr(dentry, data->res.fattr, sattr);
373 nfs_post_op_update_inode(dentry->d_inode, data->res.fattr);
374 dprintk("NFS reply setattr (post-create): %d\n", status);
375 if (status != 0)
376 goto out;
377 }
378 status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode);
379 out:
380 nfs3_free_createdata(data);
381 dprintk("NFS reply create: %d\n", status);
382 return status;
383 }
384
385 static int
386 nfs3_proc_remove(struct inode *dir, struct qstr *name)
387 {
388 struct nfs_removeargs arg = {
389 .fh = NFS_FH(dir),
390 .name.len = name->len,
391 .name.name = name->name,
392 };
393 struct nfs_removeres res;
394 struct rpc_message msg = {
395 .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE],
396 .rpc_argp = &arg,
397 .rpc_resp = &res,
398 };
399 int status;
400
401 dprintk("NFS call remove %s\n", name->name);
402 nfs_fattr_init(&res.dir_attr);
403 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
404 nfs_post_op_update_inode(dir, &res.dir_attr);
405 dprintk("NFS reply remove: %d\n", status);
406 return status;
407 }
408
409 static void
410 nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
411 {
412 msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE];
413 }
414
415 static int
416 nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir)
417 {
418 struct nfs_removeres *res;
419 if (nfs3_async_handle_jukebox(task, dir))
420 return 0;
421 res = task->tk_msg.rpc_resp;
422 nfs_post_op_update_inode(dir, &res->dir_attr);
423 return 1;
424 }
425
426 static int
427 nfs3_proc_rename(struct inode *old_dir, struct qstr *old_name,
428 struct inode *new_dir, struct qstr *new_name)
429 {
430 struct nfs_fattr old_dir_attr, new_dir_attr;
431 struct nfs3_renameargs arg = {
432 .fromfh = NFS_FH(old_dir),
433 .fromname = old_name->name,
434 .fromlen = old_name->len,
435 .tofh = NFS_FH(new_dir),
436 .toname = new_name->name,
437 .tolen = new_name->len
438 };
439 struct nfs3_renameres res = {
440 .fromattr = &old_dir_attr,
441 .toattr = &new_dir_attr
442 };
443 struct rpc_message msg = {
444 .rpc_proc = &nfs3_procedures[NFS3PROC_RENAME],
445 .rpc_argp = &arg,
446 .rpc_resp = &res,
447 };
448 int status;
449
450 dprintk("NFS call rename %s -> %s\n", old_name->name, new_name->name);
451 nfs_fattr_init(&old_dir_attr);
452 nfs_fattr_init(&new_dir_attr);
453 status = rpc_call_sync(NFS_CLIENT(old_dir), &msg, 0);
454 nfs_post_op_update_inode(old_dir, &old_dir_attr);
455 nfs_post_op_update_inode(new_dir, &new_dir_attr);
456 dprintk("NFS reply rename: %d\n", status);
457 return status;
458 }
459
460 static int
461 nfs3_proc_link(struct inode *inode, struct inode *dir, struct qstr *name)
462 {
463 struct nfs_fattr dir_attr, fattr;
464 struct nfs3_linkargs arg = {
465 .fromfh = NFS_FH(inode),
466 .tofh = NFS_FH(dir),
467 .toname = name->name,
468 .tolen = name->len
469 };
470 struct nfs3_linkres res = {
471 .dir_attr = &dir_attr,
472 .fattr = &fattr
473 };
474 struct rpc_message msg = {
475 .rpc_proc = &nfs3_procedures[NFS3PROC_LINK],
476 .rpc_argp = &arg,
477 .rpc_resp = &res,
478 };
479 int status;
480
481 dprintk("NFS call link %s\n", name->name);
482 nfs_fattr_init(&dir_attr);
483 nfs_fattr_init(&fattr);
484 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
485 nfs_post_op_update_inode(dir, &dir_attr);
486 nfs_post_op_update_inode(inode, &fattr);
487 dprintk("NFS reply link: %d\n", status);
488 return status;
489 }
490
491 static int
492 nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
493 unsigned int len, struct iattr *sattr)
494 {
495 struct nfs3_createdata *data;
496 int status = -ENOMEM;
497
498 if (len > NFS3_MAXPATHLEN)
499 return -ENAMETOOLONG;
500
501 dprintk("NFS call symlink %s\n", dentry->d_name.name);
502
503 data = nfs3_alloc_createdata();
504 if (data == NULL)
505 goto out;
506 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK];
507 data->arg.symlink.fromfh = NFS_FH(dir);
508 data->arg.symlink.fromname = dentry->d_name.name;
509 data->arg.symlink.fromlen = dentry->d_name.len;
510 data->arg.symlink.pages = &page;
511 data->arg.symlink.pathlen = len;
512 data->arg.symlink.sattr = sattr;
513
514 status = nfs3_do_create(dir, dentry, data);
515
516 nfs3_free_createdata(data);
517 out:
518 dprintk("NFS reply symlink: %d\n", status);
519 return status;
520 }
521
522 static int
523 nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
524 {
525 struct nfs3_createdata *data;
526 int mode = sattr->ia_mode;
527 int status = -ENOMEM;
528
529 dprintk("NFS call mkdir %s\n", dentry->d_name.name);
530
531 sattr->ia_mode &= ~current->fs->umask;
532
533 data = nfs3_alloc_createdata();
534 if (data == NULL)
535 goto out;
536
537 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR];
538 data->arg.mkdir.fh = NFS_FH(dir);
539 data->arg.mkdir.name = dentry->d_name.name;
540 data->arg.mkdir.len = dentry->d_name.len;
541 data->arg.mkdir.sattr = sattr;
542
543 status = nfs3_do_create(dir, dentry, data);
544 if (status != 0)
545 goto out;
546
547 status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode);
548 out:
549 nfs3_free_createdata(data);
550 dprintk("NFS reply mkdir: %d\n", status);
551 return status;
552 }
553
554 static int
555 nfs3_proc_rmdir(struct inode *dir, struct qstr *name)
556 {
557 struct nfs_fattr dir_attr;
558 struct nfs3_diropargs arg = {
559 .fh = NFS_FH(dir),
560 .name = name->name,
561 .len = name->len
562 };
563 struct rpc_message msg = {
564 .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR],
565 .rpc_argp = &arg,
566 .rpc_resp = &dir_attr,
567 };
568 int status;
569
570 dprintk("NFS call rmdir %s\n", name->name);
571 nfs_fattr_init(&dir_attr);
572 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
573 nfs_post_op_update_inode(dir, &dir_attr);
574 dprintk("NFS reply rmdir: %d\n", status);
575 return status;
576 }
577
578 /*
579 * The READDIR implementation is somewhat hackish - we pass the user buffer
580 * to the encode function, which installs it in the receive iovec.
581 * The decode function itself doesn't perform any decoding, it just makes
582 * sure the reply is syntactically correct.
583 *
584 * Also note that this implementation handles both plain readdir and
585 * readdirplus.
586 */
587 static int
588 nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
589 u64 cookie, struct page *page, unsigned int count, int plus)
590 {
591 struct inode *dir = dentry->d_inode;
592 struct nfs_fattr dir_attr;
593 __be32 *verf = NFS_COOKIEVERF(dir);
594 struct nfs3_readdirargs arg = {
595 .fh = NFS_FH(dir),
596 .cookie = cookie,
597 .verf = {verf[0], verf[1]},
598 .plus = plus,
599 .count = count,
600 .pages = &page
601 };
602 struct nfs3_readdirres res = {
603 .dir_attr = &dir_attr,
604 .verf = verf,
605 .plus = plus
606 };
607 struct rpc_message msg = {
608 .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR],
609 .rpc_argp = &arg,
610 .rpc_resp = &res,
611 .rpc_cred = cred
612 };
613 int status;
614
615 if (plus)
616 msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS];
617
618 dprintk("NFS call readdir%s %d\n",
619 plus? "plus" : "", (unsigned int) cookie);
620
621 nfs_fattr_init(&dir_attr);
622 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
623
624 nfs_invalidate_atime(dir);
625
626 nfs_refresh_inode(dir, &dir_attr);
627 dprintk("NFS reply readdir: %d\n", status);
628 return status;
629 }
630
631 static int
632 nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
633 dev_t rdev)
634 {
635 struct nfs3_createdata *data;
636 mode_t mode = sattr->ia_mode;
637 int status = -ENOMEM;
638
639 dprintk("NFS call mknod %s %u:%u\n", dentry->d_name.name,
640 MAJOR(rdev), MINOR(rdev));
641
642 sattr->ia_mode &= ~current->fs->umask;
643
644 data = nfs3_alloc_createdata();
645 if (data == NULL)
646 goto out;
647
648 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD];
649 data->arg.mknod.fh = NFS_FH(dir);
650 data->arg.mknod.name = dentry->d_name.name;
651 data->arg.mknod.len = dentry->d_name.len;
652 data->arg.mknod.sattr = sattr;
653 data->arg.mknod.rdev = rdev;
654
655 switch (sattr->ia_mode & S_IFMT) {
656 case S_IFBLK:
657 data->arg.mknod.type = NF3BLK;
658 break;
659 case S_IFCHR:
660 data->arg.mknod.type = NF3CHR;
661 break;
662 case S_IFIFO:
663 data->arg.mknod.type = NF3FIFO;
664 break;
665 case S_IFSOCK:
666 data->arg.mknod.type = NF3SOCK;
667 break;
668 default:
669 status = -EINVAL;
670 goto out;
671 }
672
673 status = nfs3_do_create(dir, dentry, data);
674 if (status != 0)
675 goto out;
676 status = nfs3_proc_set_default_acl(dir, dentry->d_inode, mode);
677 out:
678 nfs3_free_createdata(data);
679 dprintk("NFS reply mknod: %d\n", status);
680 return status;
681 }
682
683 static int
684 nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
685 struct nfs_fsstat *stat)
686 {
687 struct rpc_message msg = {
688 .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT],
689 .rpc_argp = fhandle,
690 .rpc_resp = stat,
691 };
692 int status;
693
694 dprintk("NFS call fsstat\n");
695 nfs_fattr_init(stat->fattr);
696 status = rpc_call_sync(server->client, &msg, 0);
697 dprintk("NFS reply statfs: %d\n", status);
698 return status;
699 }
700
701 static int
702 nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
703 struct nfs_fsinfo *info)
704 {
705 struct rpc_message msg = {
706 .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
707 .rpc_argp = fhandle,
708 .rpc_resp = info,
709 };
710 int status;
711
712 dprintk("NFS call fsinfo\n");
713 nfs_fattr_init(info->fattr);
714 status = rpc_call_sync(server->nfs_client->cl_rpcclient, &msg, 0);
715 dprintk("NFS reply fsinfo: %d\n", status);
716 return status;
717 }
718
719 static int
720 nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
721 struct nfs_pathconf *info)
722 {
723 struct rpc_message msg = {
724 .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF],
725 .rpc_argp = fhandle,
726 .rpc_resp = info,
727 };
728 int status;
729
730 dprintk("NFS call pathconf\n");
731 nfs_fattr_init(info->fattr);
732 status = rpc_call_sync(server->client, &msg, 0);
733 dprintk("NFS reply pathconf: %d\n", status);
734 return status;
735 }
736
737 static int nfs3_read_done(struct rpc_task *task, struct nfs_read_data *data)
738 {
739 if (nfs3_async_handle_jukebox(task, data->inode))
740 return -EAGAIN;
741
742 nfs_invalidate_atime(data->inode);
743 nfs_refresh_inode(data->inode, &data->fattr);
744 return 0;
745 }
746
747 static void nfs3_proc_read_setup(struct nfs_read_data *data, struct rpc_message *msg)
748 {
749 msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ];
750 }
751
752 static int nfs3_write_done(struct rpc_task *task, struct nfs_write_data *data)
753 {
754 if (nfs3_async_handle_jukebox(task, data->inode))
755 return -EAGAIN;
756 if (task->tk_status >= 0)
757 nfs_post_op_update_inode_force_wcc(data->inode, data->res.fattr);
758 return 0;
759 }
760
761 static void nfs3_proc_write_setup(struct nfs_write_data *data, struct rpc_message *msg)
762 {
763 msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE];
764 }
765
766 static int nfs3_commit_done(struct rpc_task *task, struct nfs_write_data *data)
767 {
768 if (nfs3_async_handle_jukebox(task, data->inode))
769 return -EAGAIN;
770 nfs_refresh_inode(data->inode, data->res.fattr);
771 return 0;
772 }
773
774 static void nfs3_proc_commit_setup(struct nfs_write_data *data, struct rpc_message *msg)
775 {
776 msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT];
777 }
778
779 static int
780 nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
781 {
782 struct inode *inode = filp->f_path.dentry->d_inode;
783
784 return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl);
785 }
786
787 const struct nfs_rpc_ops nfs_v3_clientops = {
788 .version = 3, /* protocol version */
789 .dentry_ops = &nfs_dentry_operations,
790 .dir_inode_ops = &nfs3_dir_inode_operations,
791 .file_inode_ops = &nfs3_file_inode_operations,
792 .getroot = nfs3_proc_get_root,
793 .getattr = nfs3_proc_getattr,
794 .setattr = nfs3_proc_setattr,
795 .lookup = nfs3_proc_lookup,
796 .access = nfs3_proc_access,
797 .readlink = nfs3_proc_readlink,
798 .create = nfs3_proc_create,
799 .remove = nfs3_proc_remove,
800 .unlink_setup = nfs3_proc_unlink_setup,
801 .unlink_done = nfs3_proc_unlink_done,
802 .rename = nfs3_proc_rename,
803 .link = nfs3_proc_link,
804 .symlink = nfs3_proc_symlink,
805 .mkdir = nfs3_proc_mkdir,
806 .rmdir = nfs3_proc_rmdir,
807 .readdir = nfs3_proc_readdir,
808 .mknod = nfs3_proc_mknod,
809 .statfs = nfs3_proc_statfs,
810 .fsinfo = nfs3_proc_fsinfo,
811 .pathconf = nfs3_proc_pathconf,
812 .decode_dirent = nfs3_decode_dirent,
813 .read_setup = nfs3_proc_read_setup,
814 .read_done = nfs3_read_done,
815 .write_setup = nfs3_proc_write_setup,
816 .write_done = nfs3_write_done,
817 .commit_setup = nfs3_proc_commit_setup,
818 .commit_done = nfs3_commit_done,
819 .lock = nfs3_proc_lock,
820 .clear_acl_cache = nfs3_forget_cached_acls,
821 };
linux 2.6 git repository for openrd