blob: 698be93612808b2cefd071a4180bb804f5b594a7 [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"
Anna Schumaker00a36a102014-09-03 12:19:08 -040025#include "nfs3_fs.h"
Chuck Lever006ea732006-03-20 13:44:14 -050026
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#define NFSDBG_FACILITY NFSDBG_PROC
28
Andy Adamsoneb96d5c2012-11-27 10:34:19 -050029/* A wrapper to handle the EJUKEBOX error messages */
Linus Torvalds1da177e2005-04-16 15:20:36 -070030static int
31nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
32{
Linus Torvalds1da177e2005-04-16 15:20:36 -070033 int res;
Linus Torvalds1da177e2005-04-16 15:20:36 -070034 do {
35 res = rpc_call_sync(clnt, msg, flags);
Andy Adamsoneb96d5c2012-11-27 10:34:19 -050036 if (res != -EJUKEBOX)
Linus Torvalds1da177e2005-04-16 15:20:36 -070037 break;
Colin Cross416ad3c2013-05-06 23:50:06 +000038 freezable_schedule_timeout_killable_unsafe(NFS_JUKEBOX_RETRY_TIME);
Linus Torvalds1da177e2005-04-16 15:20:36 -070039 res = -ERESTARTSYS;
Matthew Wilcox150030b2007-12-06 16:24:39 -050040 } while (!fatal_signal_pending(current));
Linus Torvalds1da177e2005-04-16 15:20:36 -070041 return res;
42}
43
Chuck Leverdead28d2006-03-20 13:44:23 -050044#define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -070045
46static int
Chuck Lever006ea732006-03-20 13:44:14 -050047nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode)
Linus Torvalds1da177e2005-04-16 15:20:36 -070048{
Andy Adamsoneb96d5c2012-11-27 10:34:19 -050049 if (task->tk_status != -EJUKEBOX)
Linus Torvalds1da177e2005-04-16 15:20:36 -070050 return 0;
Jeff Laytonb68d69b2010-01-07 09:42:04 -050051 if (task->tk_status == -EJUKEBOX)
52 nfs_inc_stats(inode, NFSIOS_DELAY);
Linus Torvalds1da177e2005-04-16 15:20:36 -070053 task->tk_status = 0;
54 rpc_restart_call(task);
55 rpc_delay(task, NFS_JUKEBOX_RETRY_TIME);
56 return 1;
57}
58
J. Bruce Fields03c21732006-01-03 09:55:48 +010059static int
60do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle,
61 struct nfs_fsinfo *info)
62{
Chuck Leverdead28d2006-03-20 13:44:23 -050063 struct rpc_message msg = {
64 .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
65 .rpc_argp = fhandle,
66 .rpc_resp = info,
67 };
J. Bruce Fields03c21732006-01-03 09:55:48 +010068 int status;
69
Harvey Harrison3110ff82008-05-02 13:42:44 -070070 dprintk("%s: call fsinfo\n", __func__);
J. Bruce Fields03c21732006-01-03 09:55:48 +010071 nfs_fattr_init(info->fattr);
Chuck Leverdead28d2006-03-20 13:44:23 -050072 status = rpc_call_sync(client, &msg, 0);
Harvey Harrison3110ff82008-05-02 13:42:44 -070073 dprintk("%s: reply fsinfo: %d\n", __func__, status);
Trond Myklebust08660042012-08-20 12:42:15 -040074 if (status == 0 && !(info->fattr->valid & NFS_ATTR_FATTR)) {
Chuck Leverdead28d2006-03-20 13:44:23 -050075 msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
76 msg.rpc_resp = info->fattr;
77 status = rpc_call_sync(client, &msg, 0);
Harvey Harrison3110ff82008-05-02 13:42:44 -070078 dprintk("%s: reply getattr: %d\n", __func__, status);
J. Bruce Fields03c21732006-01-03 09:55:48 +010079 }
80 return status;
81}
82
Linus Torvalds1da177e2005-04-16 15:20:36 -070083/*
David Howells54ceac42006-08-22 20:06:13 -040084 * Bare-bones access to getattr: this is for nfs_get_root/nfs_get_sb
Linus Torvalds1da177e2005-04-16 15:20:36 -070085 */
86static int
87nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
88 struct nfs_fsinfo *info)
89{
90 int status;
91
J. Bruce Fields03c21732006-01-03 09:55:48 +010092 status = do_proc_get_root(server->client, fhandle, info);
David Howells5006a762006-08-22 20:06:12 -040093 if (status && server->nfs_client->cl_rpcclient != server->client)
94 status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info);
Linus Torvalds1da177e2005-04-16 15:20:36 -070095 return status;
96}
97
98/*
99 * One function for each procedure in the NFS protocol.
100 */
101static int
102nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
David Quigley1775fd32013-05-22 12:50:42 -0400103 struct nfs_fattr *fattr, struct nfs4_label *label)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700104{
Chuck Leverdead28d2006-03-20 13:44:23 -0500105 struct rpc_message msg = {
106 .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR],
107 .rpc_argp = fhandle,
108 .rpc_resp = fattr,
109 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110 int status;
111
112 dprintk("NFS call getattr\n");
Trond Myklebust0e574af2005-10-27 22:12:38 -0400113 nfs_fattr_init(fattr);
Chuck Leverdead28d2006-03-20 13:44:23 -0500114 status = rpc_call_sync(server->client, &msg, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115 dprintk("NFS reply getattr: %d\n", status);
116 return status;
117}
118
119static int
120nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
121 struct iattr *sattr)
122{
David Howells2b0143b2015-03-17 22:25:59 +0000123 struct inode *inode = d_inode(dentry);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124 struct nfs3_sattrargs arg = {
125 .fh = NFS_FH(inode),
126 .sattr = sattr,
127 };
Chuck Leverdead28d2006-03-20 13:44:23 -0500128 struct rpc_message msg = {
129 .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR],
130 .rpc_argp = &arg,
131 .rpc_resp = fattr,
132 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133 int status;
134
135 dprintk("NFS call setattr\n");
Trond Myklebust659bfcd2008-06-10 19:39:41 -0400136 if (sattr->ia_valid & ATTR_FILE)
137 msg.rpc_cred = nfs_file_cred(sattr->ia_file);
Trond Myklebust0e574af2005-10-27 22:12:38 -0400138 nfs_fattr_init(fattr);
Chuck Leverdead28d2006-03-20 13:44:23 -0500139 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
Trond Myklebust65e43082005-08-16 11:49:44 -0400140 if (status == 0)
Trond Myklebustf0446362015-02-26 16:09:04 -0500141 nfs_setattr_update_inode(inode, sattr, fattr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142 dprintk("NFS reply setattr: %d\n", status);
143 return status;
144}
145
146static int
Al Virobeffb8f2016-07-20 16:34:42 -0400147nfs3_proc_lookup(struct inode *dir, const struct qstr *name,
David Quigley1775fd32013-05-22 12:50:42 -0400148 struct nfs_fh *fhandle, struct nfs_fattr *fattr,
149 struct nfs4_label *label)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700151 struct nfs3_diropargs arg = {
152 .fh = NFS_FH(dir),
153 .name = name->name,
154 .len = name->len
155 };
156 struct nfs3_diropres res = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157 .fh = fhandle,
158 .fattr = fattr
159 };
Chuck Leverdead28d2006-03-20 13:44:23 -0500160 struct rpc_message msg = {
161 .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP],
162 .rpc_argp = &arg,
163 .rpc_resp = &res,
164 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165 int status;
166
167 dprintk("NFS call lookup %s\n", name->name);
Trond Myklebuste1fb4d02010-04-16 16:22:47 -0400168 res.dir_attr = nfs_alloc_fattr();
169 if (res.dir_attr == NULL)
170 return -ENOMEM;
171
Trond Myklebust0e574af2005-10-27 22:12:38 -0400172 nfs_fattr_init(fattr);
Chuck Leverdead28d2006-03-20 13:44:23 -0500173 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
Trond Myklebuste1fb4d02010-04-16 16:22:47 -0400174 nfs_refresh_inode(dir, res.dir_attr);
Chuck Leverdead28d2006-03-20 13:44:23 -0500175 if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) {
176 msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
177 msg.rpc_argp = fhandle;
178 msg.rpc_resp = fattr;
179 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
180 }
Trond Myklebuste1fb4d02010-04-16 16:22:47 -0400181 nfs_free_fattr(res.dir_attr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700182 dprintk("NFS reply lookup: %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183 return status;
184}
185
186static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
187{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188 struct nfs3_accessargs arg = {
189 .fh = NFS_FH(inode),
190 };
Trond Myklebustc407d412010-04-16 16:22:48 -0400191 struct nfs3_accessres res;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192 struct rpc_message msg = {
193 .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS],
194 .rpc_argp = &arg,
195 .rpc_resp = &res,
Chuck Leverdead28d2006-03-20 13:44:23 -0500196 .rpc_cred = entry->cred,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197 };
198 int mode = entry->mask;
Trond Myklebustc407d412010-04-16 16:22:48 -0400199 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700200
201 dprintk("NFS call access\n");
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202
203 if (mode & MAY_READ)
204 arg.access |= NFS3_ACCESS_READ;
205 if (S_ISDIR(inode->i_mode)) {
206 if (mode & MAY_WRITE)
207 arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE;
208 if (mode & MAY_EXEC)
209 arg.access |= NFS3_ACCESS_LOOKUP;
210 } else {
211 if (mode & MAY_WRITE)
212 arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND;
213 if (mode & MAY_EXEC)
214 arg.access |= NFS3_ACCESS_EXECUTE;
215 }
Trond Myklebustc407d412010-04-16 16:22:48 -0400216
217 res.fattr = nfs_alloc_fattr();
218 if (res.fattr == NULL)
219 goto out;
220
Linus Torvalds1da177e2005-04-16 15:20:36 -0700221 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
Trond Myklebustc407d412010-04-16 16:22:48 -0400222 nfs_refresh_inode(inode, res.fattr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223 if (status == 0) {
224 entry->mask = 0;
225 if (res.access & NFS3_ACCESS_READ)
226 entry->mask |= MAY_READ;
227 if (res.access & (NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE))
228 entry->mask |= MAY_WRITE;
229 if (res.access & (NFS3_ACCESS_LOOKUP|NFS3_ACCESS_EXECUTE))
230 entry->mask |= MAY_EXEC;
231 }
Trond Myklebustc407d412010-04-16 16:22:48 -0400232 nfs_free_fattr(res.fattr);
233out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700234 dprintk("NFS reply access: %d\n", status);
235 return status;
236}
237
238static int nfs3_proc_readlink(struct inode *inode, struct page *page,
239 unsigned int pgbase, unsigned int pglen)
240{
Trond Myklebust3b14d652010-04-16 16:22:50 -0400241 struct nfs_fattr *fattr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242 struct nfs3_readlinkargs args = {
243 .fh = NFS_FH(inode),
244 .pgbase = pgbase,
245 .pglen = pglen,
246 .pages = &page
247 };
Chuck Leverdead28d2006-03-20 13:44:23 -0500248 struct rpc_message msg = {
249 .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK],
250 .rpc_argp = &args,
Chuck Leverdead28d2006-03-20 13:44:23 -0500251 };
Trond Myklebust3b14d652010-04-16 16:22:50 -0400252 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253
254 dprintk("NFS call readlink\n");
Trond Myklebust3b14d652010-04-16 16:22:50 -0400255 fattr = nfs_alloc_fattr();
256 if (fattr == NULL)
257 goto out;
258 msg.rpc_resp = fattr;
259
Chuck Leverdead28d2006-03-20 13:44:23 -0500260 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
Trond Myklebust3b14d652010-04-16 16:22:50 -0400261 nfs_refresh_inode(inode, fattr);
262 nfs_free_fattr(fattr);
263out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264 dprintk("NFS reply readlink: %d\n", status);
265 return status;
266}
267
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400268struct nfs3_createdata {
269 struct rpc_message msg;
270 union {
271 struct nfs3_createargs create;
272 struct nfs3_mkdirargs mkdir;
273 struct nfs3_symlinkargs symlink;
274 struct nfs3_mknodargs mknod;
275 } arg;
276 struct nfs3_diropres res;
277 struct nfs_fh fh;
278 struct nfs_fattr fattr;
279 struct nfs_fattr dir_attr;
280};
281
282static struct nfs3_createdata *nfs3_alloc_createdata(void)
283{
284 struct nfs3_createdata *data;
285
286 data = kzalloc(sizeof(*data), GFP_KERNEL);
287 if (data != NULL) {
288 data->msg.rpc_argp = &data->arg;
289 data->msg.rpc_resp = &data->res;
290 data->res.fh = &data->fh;
291 data->res.fattr = &data->fattr;
292 data->res.dir_attr = &data->dir_attr;
293 nfs_fattr_init(data->res.fattr);
294 nfs_fattr_init(data->res.dir_attr);
295 }
296 return data;
297}
298
299static int nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data)
300{
301 int status;
302
303 status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0);
304 nfs_post_op_update_inode(dir, data->res.dir_attr);
305 if (status == 0)
David Quigley1775fd32013-05-22 12:50:42 -0400306 status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL);
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400307 return status;
308}
309
310static void nfs3_free_createdata(struct nfs3_createdata *data)
311{
312 kfree(data);
313}
314
Linus Torvalds1da177e2005-04-16 15:20:36 -0700315/*
316 * Create a regular file.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700317 */
318static int
319nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
Miklos Szeredi8867fe52012-06-05 15:10:19 +0200320 int flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700321{
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800322 struct posix_acl *default_acl, *acl;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400323 struct nfs3_createdata *data;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400324 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700325
Al Viro6de14722013-09-16 10:53:17 -0400326 dprintk("NFS call create %pd\n", dentry);
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400327
328 data = nfs3_alloc_createdata();
329 if (data == NULL)
330 goto out;
331
332 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE];
333 data->arg.create.fh = NFS_FH(dir);
334 data->arg.create.name = dentry->d_name.name;
335 data->arg.create.len = dentry->d_name.len;
336 data->arg.create.sattr = sattr;
337
338 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700339 if (flags & O_EXCL) {
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400340 data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE;
Trond Myklebusta9943d12013-08-20 21:04:11 -0400341 data->arg.create.verifier[0] = cpu_to_be32(jiffies);
342 data->arg.create.verifier[1] = cpu_to_be32(current->pid);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700343 }
344
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800345 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
346 if (status)
347 goto out;
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000348
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400349 for (;;) {
350 status = nfs3_do_create(dir, dentry, data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700351
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400352 if (status != -ENOTSUPP)
353 break;
354 /* If the server doesn't support the exclusive creation
355 * semantics, try again with simple 'guarded' mode. */
356 switch (data->arg.create.createmode) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700357 case NFS3_CREATE_EXCLUSIVE:
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400358 data->arg.create.createmode = NFS3_CREATE_GUARDED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700359 break;
360
361 case NFS3_CREATE_GUARDED:
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400362 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363 break;
364
365 case NFS3_CREATE_UNCHECKED:
366 goto out;
367 }
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400368 nfs_fattr_init(data->res.dir_attr);
369 nfs_fattr_init(data->res.fattr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370 }
371
Linus Torvalds1da177e2005-04-16 15:20:36 -0700372 if (status != 0)
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800373 goto out_release_acls;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700374
375 /* When we created the file with exclusive semantics, make
376 * sure we set the attributes afterwards. */
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400377 if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700378 dprintk("NFS call setattr (post-create)\n");
379
380 if (!(sattr->ia_valid & ATTR_ATIME_SET))
381 sattr->ia_valid |= ATTR_ATIME;
382 if (!(sattr->ia_valid & ATTR_MTIME_SET))
383 sattr->ia_valid |= ATTR_MTIME;
384
385 /* Note: we could use a guarded setattr here, but I'm
386 * not sure this buys us anything (and I'd have
387 * to revamp the NFSv3 XDR code) */
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400388 status = nfs3_proc_setattr(dentry, data->res.fattr, sattr);
David Howells2b0143b2015-03-17 22:25:59 +0000389 nfs_post_op_update_inode(d_inode(dentry), data->res.fattr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700390 dprintk("NFS reply setattr (post-create): %d\n", status);
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400391 if (status != 0)
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800392 goto out_release_acls;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700393 }
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800394
David Howells2b0143b2015-03-17 22:25:59 +0000395 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800396
397out_release_acls:
398 posix_acl_release(acl);
399 posix_acl_release(default_acl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700400out:
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400401 nfs3_free_createdata(data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700402 dprintk("NFS reply create: %d\n", status);
403 return status;
404}
405
406static int
Al Virobeffb8f2016-07-20 16:34:42 -0400407nfs3_proc_remove(struct inode *dir, const struct qstr *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408{
Trond Myklebust4fdc17b2007-07-14 15:39:57 -0400409 struct nfs_removeargs arg = {
410 .fh = NFS_FH(dir),
Linus Torvalds26fe5752012-05-10 13:14:12 -0700411 .name = *name,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700412 };
Trond Myklebust4fdc17b2007-07-14 15:39:57 -0400413 struct nfs_removeres res;
414 struct rpc_message msg = {
415 .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE],
416 .rpc_argp = &arg,
417 .rpc_resp = &res,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700418 };
Trond Myklebustd3468902010-04-16 16:22:50 -0400419 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700420
421 dprintk("NFS call remove %s\n", name->name);
Trond Myklebustd3468902010-04-16 16:22:50 -0400422 res.dir_attr = nfs_alloc_fattr();
423 if (res.dir_attr == NULL)
424 goto out;
425
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
Trond Myklebustd3468902010-04-16 16:22:50 -0400427 nfs_post_op_update_inode(dir, res.dir_attr);
428 nfs_free_fattr(res.dir_attr);
429out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700430 dprintk("NFS reply remove: %d\n", status);
431 return status;
432}
433
Trond Myklebuste4eff1a2007-07-14 15:39:58 -0400434static void
435nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700436{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700437 msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700438}
439
Bryan Schumaker34e137c2012-03-19 14:54:41 -0400440static void nfs3_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data)
441{
442 rpc_call_start(task);
443}
444
Linus Torvalds1da177e2005-04-16 15:20:36 -0700445static int
Trond Myklebuste4eff1a2007-07-14 15:39:58 -0400446nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700447{
Trond Myklebuste4eff1a2007-07-14 15:39:58 -0400448 struct nfs_removeres *res;
449 if (nfs3_async_handle_jukebox(task, dir))
450 return 0;
451 res = task->tk_msg.rpc_resp;
Trond Myklebustd3468902010-04-16 16:22:50 -0400452 nfs_post_op_update_inode(dir, res->dir_attr);
Trond Myklebuste4eff1a2007-07-14 15:39:58 -0400453 return 1;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454}
455
Jeff Laytond3d41522010-09-17 17:31:57 -0400456static void
457nfs3_proc_rename_setup(struct rpc_message *msg, struct inode *dir)
458{
459 msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME];
460}
461
Bryan Schumakerc6bfa1a2012-03-19 14:54:42 -0400462static void nfs3_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data)
463{
464 rpc_call_start(task);
465}
466
Jeff Laytond3d41522010-09-17 17:31:57 -0400467static int
468nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
469 struct inode *new_dir)
470{
471 struct nfs_renameres *res;
472
473 if (nfs3_async_handle_jukebox(task, old_dir))
474 return 0;
475 res = task->tk_msg.rpc_resp;
476
477 nfs_post_op_update_inode(old_dir, res->old_fattr);
478 nfs_post_op_update_inode(new_dir, res->new_fattr);
479 return 1;
480}
481
Linus Torvalds1da177e2005-04-16 15:20:36 -0700482static int
Al Virobeffb8f2016-07-20 16:34:42 -0400483nfs3_proc_link(struct inode *inode, struct inode *dir, const struct qstr *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700484{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700485 struct nfs3_linkargs arg = {
486 .fromfh = NFS_FH(inode),
487 .tofh = NFS_FH(dir),
488 .toname = name->name,
489 .tolen = name->len
490 };
Trond Myklebust136f2622010-04-16 16:22:49 -0400491 struct nfs3_linkres res;
Chuck Leverdead28d2006-03-20 13:44:23 -0500492 struct rpc_message msg = {
493 .rpc_proc = &nfs3_procedures[NFS3PROC_LINK],
494 .rpc_argp = &arg,
495 .rpc_resp = &res,
496 };
Trond Myklebust136f2622010-04-16 16:22:49 -0400497 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700498
499 dprintk("NFS call link %s\n", name->name);
Trond Myklebust136f2622010-04-16 16:22:49 -0400500 res.fattr = nfs_alloc_fattr();
501 res.dir_attr = nfs_alloc_fattr();
502 if (res.fattr == NULL || res.dir_attr == NULL)
503 goto out;
504
Chuck Leverdead28d2006-03-20 13:44:23 -0500505 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
Trond Myklebust136f2622010-04-16 16:22:49 -0400506 nfs_post_op_update_inode(dir, res.dir_attr);
507 nfs_post_op_update_inode(inode, res.fattr);
508out:
509 nfs_free_fattr(res.dir_attr);
510 nfs_free_fattr(res.fattr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700511 dprintk("NFS reply link: %d\n", status);
512 return status;
513}
514
515static int
Chuck Lever94a6d752006-08-22 20:06:23 -0400516nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
517 unsigned int len, struct iattr *sattr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700518{
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400519 struct nfs3_createdata *data;
520 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521
Chuck Lever94a6d752006-08-22 20:06:23 -0400522 if (len > NFS3_MAXPATHLEN)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523 return -ENAMETOOLONG;
Chuck Lever4f390c12006-08-22 20:06:22 -0400524
Al Viro6de14722013-09-16 10:53:17 -0400525 dprintk("NFS call symlink %pd\n", dentry);
Chuck Lever94a6d752006-08-22 20:06:23 -0400526
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400527 data = nfs3_alloc_createdata();
528 if (data == NULL)
Chuck Lever4f390c12006-08-22 20:06:22 -0400529 goto out;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400530 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK];
531 data->arg.symlink.fromfh = NFS_FH(dir);
532 data->arg.symlink.fromname = dentry->d_name.name;
533 data->arg.symlink.fromlen = dentry->d_name.len;
534 data->arg.symlink.pages = &page;
535 data->arg.symlink.pathlen = len;
536 data->arg.symlink.sattr = sattr;
537
538 status = nfs3_do_create(dir, dentry, data);
539
540 nfs3_free_createdata(data);
Chuck Lever4f390c12006-08-22 20:06:22 -0400541out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542 dprintk("NFS reply symlink: %d\n", status);
543 return status;
544}
545
546static int
547nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
548{
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800549 struct posix_acl *default_acl, *acl;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400550 struct nfs3_createdata *data;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400551 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700552
Al Viro6de14722013-09-16 10:53:17 -0400553 dprintk("NFS call mkdir %pd\n", dentry);
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000554
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400555 data = nfs3_alloc_createdata();
556 if (data == NULL)
557 goto out;
558
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800559 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
560 if (status)
561 goto out;
562
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400563 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR];
564 data->arg.mkdir.fh = NFS_FH(dir);
565 data->arg.mkdir.name = dentry->d_name.name;
566 data->arg.mkdir.len = dentry->d_name.len;
567 data->arg.mkdir.sattr = sattr;
568
569 status = nfs3_do_create(dir, dentry, data);
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000570 if (status != 0)
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800571 goto out_release_acls;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400572
David Howells2b0143b2015-03-17 22:25:59 +0000573 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800574
575out_release_acls:
576 posix_acl_release(acl);
577 posix_acl_release(default_acl);
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000578out:
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400579 nfs3_free_createdata(data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700580 dprintk("NFS reply mkdir: %d\n", status);
581 return status;
582}
583
584static int
Al Virobeffb8f2016-07-20 16:34:42 -0400585nfs3_proc_rmdir(struct inode *dir, const struct qstr *name)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700586{
Trond Myklebust39967dd2010-04-16 16:22:50 -0400587 struct nfs_fattr *dir_attr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700588 struct nfs3_diropargs arg = {
589 .fh = NFS_FH(dir),
590 .name = name->name,
591 .len = name->len
592 };
Chuck Leverdead28d2006-03-20 13:44:23 -0500593 struct rpc_message msg = {
594 .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR],
595 .rpc_argp = &arg,
Chuck Leverdead28d2006-03-20 13:44:23 -0500596 };
Trond Myklebust39967dd2010-04-16 16:22:50 -0400597 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700598
599 dprintk("NFS call rmdir %s\n", name->name);
Trond Myklebust39967dd2010-04-16 16:22:50 -0400600 dir_attr = nfs_alloc_fattr();
601 if (dir_attr == NULL)
602 goto out;
603
604 msg.rpc_resp = dir_attr;
Chuck Leverdead28d2006-03-20 13:44:23 -0500605 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
Trond Myklebust39967dd2010-04-16 16:22:50 -0400606 nfs_post_op_update_inode(dir, dir_attr);
607 nfs_free_fattr(dir_attr);
608out:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700609 dprintk("NFS reply rmdir: %d\n", status);
610 return status;
611}
612
613/*
614 * The READDIR implementation is somewhat hackish - we pass the user buffer
615 * to the encode function, which installs it in the receive iovec.
616 * The decode function itself doesn't perform any decoding, it just makes
617 * sure the reply is syntactically correct.
618 *
619 * Also note that this implementation handles both plain readdir and
620 * readdirplus.
621 */
622static int
623nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
Bryan Schumaker56e4ebf2010-10-20 15:44:37 -0400624 u64 cookie, struct page **pages, unsigned int count, int plus)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700625{
David Howells2b0143b2015-03-17 22:25:59 +0000626 struct inode *dir = d_inode(dentry);
Trond Myklebustc3f52af2012-09-03 14:56:02 -0400627 __be32 *verf = NFS_I(dir)->cookieverf;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700628 struct nfs3_readdirargs arg = {
629 .fh = NFS_FH(dir),
630 .cookie = cookie,
631 .verf = {verf[0], verf[1]},
632 .plus = plus,
633 .count = count,
Bryan Schumaker56e4ebf2010-10-20 15:44:37 -0400634 .pages = pages
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635 };
636 struct nfs3_readdirres res = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700637 .verf = verf,
638 .plus = plus
639 };
640 struct rpc_message msg = {
641 .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR],
642 .rpc_argp = &arg,
643 .rpc_resp = &res,
644 .rpc_cred = cred
645 };
Trond Myklebustaa49b4c2010-04-16 16:22:49 -0400646 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700647
Linus Torvalds1da177e2005-04-16 15:20:36 -0700648 if (plus)
649 msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS];
650
651 dprintk("NFS call readdir%s %d\n",
652 plus? "plus" : "", (unsigned int) cookie);
653
Trond Myklebustaa49b4c2010-04-16 16:22:49 -0400654 res.dir_attr = nfs_alloc_fattr();
655 if (res.dir_attr == NULL)
656 goto out;
657
Linus Torvalds1da177e2005-04-16 15:20:36 -0700658 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
Trond Myklebustc4812992007-09-28 17:11:45 -0400659
660 nfs_invalidate_atime(dir);
Trond Myklebustaa49b4c2010-04-16 16:22:49 -0400661 nfs_refresh_inode(dir, res.dir_attr);
Trond Myklebustc4812992007-09-28 17:11:45 -0400662
Trond Myklebustaa49b4c2010-04-16 16:22:49 -0400663 nfs_free_fattr(res.dir_attr);
664out:
Chuck Leverd141d972010-09-21 16:55:47 -0400665 dprintk("NFS reply readdir%s: %d\n",
666 plus? "plus" : "", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700667 return status;
668}
669
670static int
671nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
672 dev_t rdev)
673{
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800674 struct posix_acl *default_acl, *acl;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400675 struct nfs3_createdata *data;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400676 int status = -ENOMEM;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700677
Al Viro6de14722013-09-16 10:53:17 -0400678 dprintk("NFS call mknod %pd %u:%u\n", dentry,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679 MAJOR(rdev), MINOR(rdev));
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000680
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400681 data = nfs3_alloc_createdata();
682 if (data == NULL)
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000683 goto out;
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400684
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800685 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
686 if (status)
687 goto out;
688
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400689 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD];
690 data->arg.mknod.fh = NFS_FH(dir);
691 data->arg.mknod.name = dentry->d_name.name;
692 data->arg.mknod.len = dentry->d_name.len;
693 data->arg.mknod.sattr = sattr;
694 data->arg.mknod.rdev = rdev;
695
696 switch (sattr->ia_mode & S_IFMT) {
697 case S_IFBLK:
698 data->arg.mknod.type = NF3BLK;
699 break;
700 case S_IFCHR:
701 data->arg.mknod.type = NF3CHR;
702 break;
703 case S_IFIFO:
704 data->arg.mknod.type = NF3FIFO;
705 break;
706 case S_IFSOCK:
707 data->arg.mknod.type = NF3SOCK;
708 break;
709 default:
710 status = -EINVAL;
711 goto out;
712 }
713
714 status = nfs3_do_create(dir, dentry, data);
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000715 if (status != 0)
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800716 goto out_release_acls;
717
David Howells2b0143b2015-03-17 22:25:59 +0000718 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800719
720out_release_acls:
721 posix_acl_release(acl);
722 posix_acl_release(default_acl);
Andreas Gruenbacher055ffbe2005-06-22 17:16:27 +0000723out:
Trond Myklebust0b4aae72008-06-20 17:00:23 -0400724 nfs3_free_createdata(data);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700725 dprintk("NFS reply mknod: %d\n", status);
726 return status;
727}
728
729static int
730nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
731 struct nfs_fsstat *stat)
732{
Chuck Leverdead28d2006-03-20 13:44:23 -0500733 struct rpc_message msg = {
734 .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT],
735 .rpc_argp = fhandle,
736 .rpc_resp = stat,
737 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700738 int status;
739
740 dprintk("NFS call fsstat\n");
Trond Myklebust0e574af2005-10-27 22:12:38 -0400741 nfs_fattr_init(stat->fattr);
Chuck Leverdead28d2006-03-20 13:44:23 -0500742 status = rpc_call_sync(server->client, &msg, 0);
Chuck Leverd141d972010-09-21 16:55:47 -0400743 dprintk("NFS reply fsstat: %d\n", status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700744 return status;
745}
746
747static int
EG Keizer37ca8f52008-08-19 16:34:36 -0400748do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749 struct nfs_fsinfo *info)
750{
Chuck Leverdead28d2006-03-20 13:44:23 -0500751 struct rpc_message msg = {
752 .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
753 .rpc_argp = fhandle,
754 .rpc_resp = info,
755 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700756 int status;
757
758 dprintk("NFS call fsinfo\n");
Trond Myklebust0e574af2005-10-27 22:12:38 -0400759 nfs_fattr_init(info->fattr);
EG Keizer37ca8f52008-08-19 16:34:36 -0400760 status = rpc_call_sync(client, &msg, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700761 dprintk("NFS reply fsinfo: %d\n", status);
762 return status;
763}
764
EG Keizer37ca8f52008-08-19 16:34:36 -0400765/*
766 * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via
767 * nfs_create_server
768 */
769static int
770nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
771 struct nfs_fsinfo *info)
772{
773 int status;
774
775 status = do_proc_fsinfo(server->client, fhandle, info);
776 if (status && server->nfs_client->cl_rpcclient != server->client)
777 status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info);
778 return status;
779}
780
Linus Torvalds1da177e2005-04-16 15:20:36 -0700781static int
782nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
783 struct nfs_pathconf *info)
784{
Chuck Leverdead28d2006-03-20 13:44:23 -0500785 struct rpc_message msg = {
786 .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF],
787 .rpc_argp = fhandle,
788 .rpc_resp = info,
789 };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700790 int status;
791
792 dprintk("NFS call pathconf\n");
Trond Myklebust0e574af2005-10-27 22:12:38 -0400793 nfs_fattr_init(info->fattr);
Chuck Leverdead28d2006-03-20 13:44:23 -0500794 status = rpc_call_sync(server->client, &msg, 0);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700795 dprintk("NFS reply pathconf: %d\n", status);
796 return status;
797}
798
Weston Andros Adamsond45f60c2014-06-09 11:48:35 -0400799static int nfs3_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800{
Weston Andros Adamsond45f60c2014-06-09 11:48:35 -0400801 struct inode *inode = hdr->inode;
Fred Isamancd841602012-04-20 14:47:44 -0400802
Trond Myklebust16cecdf2014-06-22 12:55:11 -0400803 if (hdr->pgio_done_cb != NULL)
804 return hdr->pgio_done_cb(task, hdr);
805
Fred Isamancd841602012-04-20 14:47:44 -0400806 if (nfs3_async_handle_jukebox(task, inode))
Trond Myklebustec06c092006-03-20 13:44:27 -0500807 return -EAGAIN;
Trond Myklebust8850df92007-09-28 17:20:07 -0400808
Fred Isamancd841602012-04-20 14:47:44 -0400809 nfs_invalidate_atime(inode);
Weston Andros Adamsond45f60c2014-06-09 11:48:35 -0400810 nfs_refresh_inode(inode, &hdr->fattr);
Trond Myklebustec06c092006-03-20 13:44:27 -0500811 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700812}
813
Weston Andros Adamsond45f60c2014-06-09 11:48:35 -0400814static void nfs3_proc_read_setup(struct nfs_pgio_header *hdr,
815 struct rpc_message *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700816{
Trond Myklebustbdc7f022007-07-14 15:40:00 -0400817 msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700818}
819
Weston Andros Adamsond45f60c2014-06-09 11:48:35 -0400820static int nfs3_proc_pgio_rpc_prepare(struct rpc_task *task,
821 struct nfs_pgio_header *hdr)
Bryan Schumakerea7c3302012-03-19 14:54:40 -0400822{
823 rpc_call_start(task);
NeilBrownef1820f2013-09-04 17:04:49 +1000824 return 0;
Bryan Schumakerea7c3302012-03-19 14:54:40 -0400825}
826
Weston Andros Adamsond45f60c2014-06-09 11:48:35 -0400827static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700828{
Weston Andros Adamsond45f60c2014-06-09 11:48:35 -0400829 struct inode *inode = hdr->inode;
Fred Isamancd841602012-04-20 14:47:44 -0400830
Trond Myklebust16cecdf2014-06-22 12:55:11 -0400831 if (hdr->pgio_done_cb != NULL)
832 return hdr->pgio_done_cb(task, hdr);
833
Fred Isamancd841602012-04-20 14:47:44 -0400834 if (nfs3_async_handle_jukebox(task, inode))
Trond Myklebust788e7a82006-03-20 13:44:27 -0500835 return -EAGAIN;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700836 if (task->tk_status >= 0)
Trond Myklebusta08a8cd2015-02-26 17:36:09 -0500837 nfs_writeback_update_inode(hdr);
Trond Myklebust788e7a82006-03-20 13:44:27 -0500838 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700839}
840
Weston Andros Adamsond45f60c2014-06-09 11:48:35 -0400841static void nfs3_proc_write_setup(struct nfs_pgio_header *hdr,
842 struct rpc_message *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700843{
Trond Myklebustbdc7f022007-07-14 15:40:00 -0400844 msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700845}
846
Fred Isaman0b7c0152012-04-20 14:47:39 -0400847static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
848{
849 rpc_call_start(task);
850}
851
852static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853{
Trond Myklebust16cecdf2014-06-22 12:55:11 -0400854 if (data->commit_done_cb != NULL)
855 return data->commit_done_cb(task, data);
856
Chuck Lever006ea732006-03-20 13:44:14 -0500857 if (nfs3_async_handle_jukebox(task, data->inode))
Trond Myklebust788e7a82006-03-20 13:44:27 -0500858 return -EAGAIN;
Trond Myklebust9e08a3c2007-10-08 14:10:31 -0400859 nfs_refresh_inode(data->inode, data->res.fattr);
Trond Myklebust788e7a82006-03-20 13:44:27 -0500860 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700861}
862
Fred Isaman0b7c0152012-04-20 14:47:39 -0400863static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700864{
Trond Myklebustbdc7f022007-07-14 15:40:00 -0400865 msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700866}
867
868static int
869nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
870{
Al Viro496ad9a2013-01-23 17:07:38 -0500871 struct inode *inode = file_inode(filp);
Chuck Lever1093a602008-01-11 17:09:59 -0500872
873 return nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700874}
875
Bryan Schumaker011e2a72012-06-20 15:53:43 -0400876static int nfs3_have_delegation(struct inode *inode, fmode_t flags)
877{
878 return 0;
879}
880
Bryan Schumaker57ec14c2012-06-20 15:53:44 -0400881static int nfs3_return_delegation(struct inode *inode)
882{
883 nfs_wb_all(inode);
884 return 0;
885}
886
Bryan Schumakerab962912012-07-16 16:39:11 -0400887static const struct inode_operations nfs3_dir_inode_operations = {
888 .create = nfs_create,
889 .lookup = nfs_lookup,
890 .link = nfs_link,
891 .unlink = nfs_unlink,
892 .symlink = nfs_symlink,
893 .mkdir = nfs_mkdir,
894 .rmdir = nfs_rmdir,
895 .mknod = nfs_mknod,
896 .rename = nfs_rename,
897 .permission = nfs_permission,
898 .getattr = nfs_getattr,
899 .setattr = nfs_setattr,
Christoph Hellwig5f13ee92014-01-30 06:01:52 -0800900#ifdef CONFIG_NFS_V3_ACL
Christoph Hellwig74adf832014-06-18 11:07:03 +0200901 .listxattr = nfs3_listxattr,
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800902 .getxattr = generic_getxattr,
903 .setxattr = generic_setxattr,
904 .removexattr = generic_removexattr,
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800905 .get_acl = nfs3_get_acl,
906 .set_acl = nfs3_set_acl,
907#endif
Bryan Schumakerab962912012-07-16 16:39:11 -0400908};
909
910static const struct inode_operations nfs3_file_inode_operations = {
911 .permission = nfs_permission,
912 .getattr = nfs_getattr,
913 .setattr = nfs_setattr,
Christoph Hellwig5f13ee92014-01-30 06:01:52 -0800914#ifdef CONFIG_NFS_V3_ACL
Christoph Hellwig74adf832014-06-18 11:07:03 +0200915 .listxattr = nfs3_listxattr,
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800916 .getxattr = generic_getxattr,
917 .setxattr = generic_setxattr,
918 .removexattr = generic_removexattr,
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800919 .get_acl = nfs3_get_acl,
920 .set_acl = nfs3_set_acl,
921#endif
Bryan Schumakerab962912012-07-16 16:39:11 -0400922};
923
David Howells509de812006-08-22 20:06:11 -0400924const struct nfs_rpc_ops nfs_v3_clientops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925 .version = 3, /* protocol version */
926 .dentry_ops = &nfs_dentry_operations,
Andreas Gruenbacherb7fa0552005-06-22 17:16:27 +0000927 .dir_inode_ops = &nfs3_dir_inode_operations,
928 .file_inode_ops = &nfs3_file_inode_operations,
Jeff Layton1788ea62011-11-04 13:31:21 -0400929 .file_ops = &nfs_file_operations,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700930 .getroot = nfs3_proc_get_root,
Bryan Schumaker281cad42012-04-27 13:27:45 -0400931 .submount = nfs_submount,
Bryan Schumakerff9099f22012-07-30 16:05:18 -0400932 .try_mount = nfs_try_mount,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700933 .getattr = nfs3_proc_getattr,
934 .setattr = nfs3_proc_setattr,
935 .lookup = nfs3_proc_lookup,
936 .access = nfs3_proc_access,
937 .readlink = nfs3_proc_readlink,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700938 .create = nfs3_proc_create,
939 .remove = nfs3_proc_remove,
940 .unlink_setup = nfs3_proc_unlink_setup,
Bryan Schumaker34e137c2012-03-19 14:54:41 -0400941 .unlink_rpc_prepare = nfs3_proc_unlink_rpc_prepare,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700942 .unlink_done = nfs3_proc_unlink_done,
Jeff Laytond3d41522010-09-17 17:31:57 -0400943 .rename_setup = nfs3_proc_rename_setup,
Bryan Schumakerc6bfa1a2012-03-19 14:54:42 -0400944 .rename_rpc_prepare = nfs3_proc_rename_rpc_prepare,
Jeff Laytond3d41522010-09-17 17:31:57 -0400945 .rename_done = nfs3_proc_rename_done,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700946 .link = nfs3_proc_link,
947 .symlink = nfs3_proc_symlink,
948 .mkdir = nfs3_proc_mkdir,
949 .rmdir = nfs3_proc_rmdir,
950 .readdir = nfs3_proc_readdir,
951 .mknod = nfs3_proc_mknod,
952 .statfs = nfs3_proc_statfs,
953 .fsinfo = nfs3_proc_fsinfo,
954 .pathconf = nfs3_proc_pathconf,
955 .decode_dirent = nfs3_decode_dirent,
Anna Schumakera4cdda52014-05-06 09:12:31 -0400956 .pgio_rpc_prepare = nfs3_proc_pgio_rpc_prepare,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957 .read_setup = nfs3_proc_read_setup,
Trond Myklebustec06c092006-03-20 13:44:27 -0500958 .read_done = nfs3_read_done,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700959 .write_setup = nfs3_proc_write_setup,
Trond Myklebust788e7a82006-03-20 13:44:27 -0500960 .write_done = nfs3_write_done,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961 .commit_setup = nfs3_proc_commit_setup,
Fred Isaman0b7c0152012-04-20 14:47:39 -0400962 .commit_rpc_prepare = nfs3_proc_commit_rpc_prepare,
Trond Myklebust788e7a82006-03-20 13:44:27 -0500963 .commit_done = nfs3_commit_done,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700964 .lock = nfs3_proc_lock,
Christoph Hellwig013cdf12013-12-20 05:16:53 -0800965 .clear_acl_cache = forget_all_cached_acls,
Trond Myklebust7fe5c392009-03-19 15:35:50 -0400966 .close_context = nfs_close_context,
Bryan Schumaker011e2a72012-06-20 15:53:43 -0400967 .have_delegation = nfs3_have_delegation,
Bryan Schumaker57ec14c2012-06-20 15:53:44 -0400968 .return_delegation = nfs3_return_delegation,
Bryan Schumaker6663ee72012-06-20 15:53:46 -0400969 .alloc_client = nfs_alloc_client,
Andy Adamson45a52a02011-03-01 01:34:08 +0000970 .init_client = nfs_init_client,
Bryan Schumakercdb7ece2012-06-20 15:53:45 -0400971 .free_client = nfs_free_client,
Bryan Schumaker1179acc2012-07-30 16:05:19 -0400972 .create_server = nfs3_create_server,
973 .clone_server = nfs3_clone_server,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700974};