1 // SPDX-License-Identifier: GPL-2.0
3 * linux/fs/nfs/nfs3proc.c
5 * Client-side NFSv3 procedures stubs.
7 * Copyright (C) 1997, Olaf Kirch
11 #include <linux/errno.h>
12 #include <linux/string.h>
13 #include <linux/sunrpc/clnt.h>
14 #include <linux/slab.h>
15 #include <linux/nfs.h>
16 #include <linux/nfs3.h>
17 #include <linux/nfs_fs.h>
18 #include <linux/nfs_page.h>
19 #include <linux/lockd/bind.h>
20 #include <linux/nfs_mount.h>
21 #include <linux/freezer.h>
22 #include <linux/xattr.h>
28 #define NFSDBG_FACILITY NFSDBG_PROC
30 /* A wrapper to handle the EJUKEBOX error messages */
32 nfs3_rpc_wrapper(struct rpc_clnt *clnt, struct rpc_message *msg, int flags)
36 res = rpc_call_sync(clnt, msg, flags);
39 freezable_schedule_timeout_killable_unsafe(NFS_JUKEBOX_RETRY_TIME);
41 } while (!fatal_signal_pending(current));
45 #define rpc_call_sync(clnt, msg, flags) nfs3_rpc_wrapper(clnt, msg, flags)
48 nfs3_async_handle_jukebox(struct rpc_task *task, struct inode *inode)
50 if (task->tk_status != -EJUKEBOX)
52 if (task->tk_status == -EJUKEBOX)
53 nfs_inc_stats(inode, NFSIOS_DELAY);
55 rpc_restart_call(task);
56 rpc_delay(task, NFS_JUKEBOX_RETRY_TIME);
61 do_proc_get_root(struct rpc_clnt *client, struct nfs_fh *fhandle,
62 struct nfs_fsinfo *info)
64 struct rpc_message msg = {
65 .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
71 dprintk("%s: call fsinfo\n", __func__);
72 nfs_fattr_init(info->fattr);
73 status = rpc_call_sync(client, &msg, 0);
74 dprintk("%s: reply fsinfo: %d\n", __func__, status);
75 if (status == 0 && !(info->fattr->valid & NFS_ATTR_FATTR)) {
76 msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
77 msg.rpc_resp = info->fattr;
78 status = rpc_call_sync(client, &msg, 0);
79 dprintk("%s: reply getattr: %d\n", __func__, status);
85 * Bare-bones access to getattr: this is for nfs_get_root/nfs_get_sb
88 nfs3_proc_get_root(struct nfs_server *server, struct nfs_fh *fhandle,
89 struct nfs_fsinfo *info)
93 status = do_proc_get_root(server->client, fhandle, info);
94 if (status && server->nfs_client->cl_rpcclient != server->client)
95 status = do_proc_get_root(server->nfs_client->cl_rpcclient, fhandle, info);
100 * One function for each procedure in the NFS protocol.
103 nfs3_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
104 struct nfs_fattr *fattr, struct nfs4_label *label,
107 struct rpc_message msg = {
108 .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR],
113 unsigned short task_flags = 0;
115 /* Is this is an attribute revalidation, subject to softreval? */
116 if (inode && (server->flags & NFS_MOUNT_SOFTREVAL))
117 task_flags |= RPC_TASK_TIMEOUT;
119 dprintk("NFS call getattr\n");
120 nfs_fattr_init(fattr);
121 status = rpc_call_sync(server->client, &msg, task_flags);
122 dprintk("NFS reply getattr: %d\n", status);
127 nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
130 struct inode *inode = d_inode(dentry);
131 struct nfs3_sattrargs arg = {
135 struct rpc_message msg = {
136 .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR],
142 dprintk("NFS call setattr\n");
143 if (sattr->ia_valid & ATTR_FILE)
144 msg.rpc_cred = nfs_file_cred(sattr->ia_file);
145 nfs_fattr_init(fattr);
146 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
148 nfs_setattr_update_inode(inode, sattr, fattr);
149 if (NFS_I(inode)->cache_validity & NFS_INO_INVALID_ACL)
150 nfs_zap_acl_cache(inode);
152 dprintk("NFS reply setattr: %d\n", status);
157 __nfs3_proc_lookup(struct inode *dir, const char *name, size_t len,
158 struct nfs_fh *fhandle, struct nfs_fattr *fattr,
159 unsigned short task_flags)
161 struct nfs3_diropargs arg = {
166 struct nfs3_diropres res = {
170 struct rpc_message msg = {
171 .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP],
177 res.dir_attr = nfs_alloc_fattr();
178 if (res.dir_attr == NULL)
181 nfs_fattr_init(fattr);
182 status = rpc_call_sync(NFS_CLIENT(dir), &msg, task_flags);
183 nfs_refresh_inode(dir, res.dir_attr);
184 if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) {
185 msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
186 msg.rpc_argp = fhandle;
187 msg.rpc_resp = fattr;
188 status = rpc_call_sync(NFS_CLIENT(dir), &msg, task_flags);
190 nfs_free_fattr(res.dir_attr);
191 dprintk("NFS reply lookup: %d\n", status);
196 nfs3_proc_lookup(struct inode *dir, struct dentry *dentry,
197 struct nfs_fh *fhandle, struct nfs_fattr *fattr,
198 struct nfs4_label *label)
200 unsigned short task_flags = 0;
202 /* Is this is an attribute revalidation, subject to softreval? */
203 if (nfs_lookup_is_soft_revalidate(dentry))
204 task_flags |= RPC_TASK_TIMEOUT;
206 dprintk("NFS call lookup %pd2\n", dentry);
207 return __nfs3_proc_lookup(dir, dentry->d_name.name,
208 dentry->d_name.len, fhandle, fattr,
212 static int nfs3_proc_lookupp(struct inode *inode, struct nfs_fh *fhandle,
213 struct nfs_fattr *fattr, struct nfs4_label *label)
215 const char dotdot[] = "..";
216 const size_t len = strlen(dotdot);
217 unsigned short task_flags = 0;
219 if (NFS_SERVER(inode)->flags & NFS_MOUNT_SOFTREVAL)
220 task_flags |= RPC_TASK_TIMEOUT;
222 return __nfs3_proc_lookup(inode, dotdot, len, fhandle, fattr,
226 static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
228 struct nfs3_accessargs arg = {
230 .access = entry->mask,
232 struct nfs3_accessres res;
233 struct rpc_message msg = {
234 .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS],
237 .rpc_cred = entry->cred,
239 int status = -ENOMEM;
241 dprintk("NFS call access\n");
242 res.fattr = nfs_alloc_fattr();
243 if (res.fattr == NULL)
246 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
247 nfs_refresh_inode(inode, res.fattr);
249 nfs_access_set_mask(entry, res.access);
250 nfs_free_fattr(res.fattr);
252 dprintk("NFS reply access: %d\n", status);
256 static int nfs3_proc_readlink(struct inode *inode, struct page *page,
257 unsigned int pgbase, unsigned int pglen)
259 struct nfs_fattr *fattr;
260 struct nfs3_readlinkargs args = {
266 struct rpc_message msg = {
267 .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK],
270 int status = -ENOMEM;
272 dprintk("NFS call readlink\n");
273 fattr = nfs_alloc_fattr();
276 msg.rpc_resp = fattr;
278 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
279 nfs_refresh_inode(inode, fattr);
280 nfs_free_fattr(fattr);
282 dprintk("NFS reply readlink: %d\n", status);
286 struct nfs3_createdata {
287 struct rpc_message msg;
289 struct nfs3_createargs create;
290 struct nfs3_mkdirargs mkdir;
291 struct nfs3_symlinkargs symlink;
292 struct nfs3_mknodargs mknod;
294 struct nfs3_diropres res;
296 struct nfs_fattr fattr;
297 struct nfs_fattr dir_attr;
300 static struct nfs3_createdata *nfs3_alloc_createdata(void)
302 struct nfs3_createdata *data;
304 data = kzalloc(sizeof(*data), GFP_KERNEL);
306 data->msg.rpc_argp = &data->arg;
307 data->msg.rpc_resp = &data->res;
308 data->res.fh = &data->fh;
309 data->res.fattr = &data->fattr;
310 data->res.dir_attr = &data->dir_attr;
311 nfs_fattr_init(data->res.fattr);
312 nfs_fattr_init(data->res.dir_attr);
317 static struct dentry *
318 nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data)
322 status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0);
323 nfs_post_op_update_inode(dir, data->res.dir_attr);
325 return ERR_PTR(status);
327 return nfs_add_or_obtain(dentry, data->res.fh, data->res.fattr, NULL);
330 static void nfs3_free_createdata(struct nfs3_createdata *data)
336 * Create a regular file.
339 nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
342 struct posix_acl *default_acl, *acl;
343 struct nfs3_createdata *data;
344 struct dentry *d_alias;
345 int status = -ENOMEM;
347 dprintk("NFS call create %pd\n", dentry);
349 data = nfs3_alloc_createdata();
353 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE];
354 data->arg.create.fh = NFS_FH(dir);
355 data->arg.create.name = dentry->d_name.name;
356 data->arg.create.len = dentry->d_name.len;
357 data->arg.create.sattr = sattr;
359 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
360 if (flags & O_EXCL) {
361 data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE;
362 data->arg.create.verifier[0] = cpu_to_be32(jiffies);
363 data->arg.create.verifier[1] = cpu_to_be32(current->pid);
366 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
371 d_alias = nfs3_do_create(dir, dentry, data);
372 status = PTR_ERR_OR_ZERO(d_alias);
374 if (status != -ENOTSUPP)
376 /* If the server doesn't support the exclusive creation
377 * semantics, try again with simple 'guarded' mode. */
378 switch (data->arg.create.createmode) {
379 case NFS3_CREATE_EXCLUSIVE:
380 data->arg.create.createmode = NFS3_CREATE_GUARDED;
383 case NFS3_CREATE_GUARDED:
384 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
387 case NFS3_CREATE_UNCHECKED:
388 goto out_release_acls;
390 nfs_fattr_init(data->res.dir_attr);
391 nfs_fattr_init(data->res.fattr);
395 goto out_release_acls;
400 /* When we created the file with exclusive semantics, make
401 * sure we set the attributes afterwards. */
402 if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) {
403 dprintk("NFS call setattr (post-create)\n");
405 if (!(sattr->ia_valid & ATTR_ATIME_SET))
406 sattr->ia_valid |= ATTR_ATIME;
407 if (!(sattr->ia_valid & ATTR_MTIME_SET))
408 sattr->ia_valid |= ATTR_MTIME;
410 /* Note: we could use a guarded setattr here, but I'm
411 * not sure this buys us anything (and I'd have
412 * to revamp the NFSv3 XDR code) */
413 status = nfs3_proc_setattr(dentry, data->res.fattr, sattr);
414 nfs_post_op_update_inode(d_inode(dentry), data->res.fattr);
415 dprintk("NFS reply setattr (post-create): %d\n", status);
420 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
425 posix_acl_release(acl);
426 posix_acl_release(default_acl);
428 nfs3_free_createdata(data);
429 dprintk("NFS reply create: %d\n", status);
434 nfs3_proc_remove(struct inode *dir, struct dentry *dentry)
436 struct nfs_removeargs arg = {
438 .name = dentry->d_name,
440 struct nfs_removeres res;
441 struct rpc_message msg = {
442 .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE],
446 int status = -ENOMEM;
448 dprintk("NFS call remove %pd2\n", dentry);
449 res.dir_attr = nfs_alloc_fattr();
450 if (res.dir_attr == NULL)
453 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
454 nfs_post_op_update_inode(dir, res.dir_attr);
455 nfs_free_fattr(res.dir_attr);
457 dprintk("NFS reply remove: %d\n", status);
462 nfs3_proc_unlink_setup(struct rpc_message *msg,
463 struct dentry *dentry,
466 msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE];
469 static void nfs3_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data)
471 rpc_call_start(task);
475 nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir)
477 struct nfs_removeres *res;
478 if (nfs3_async_handle_jukebox(task, dir))
480 res = task->tk_msg.rpc_resp;
481 nfs_post_op_update_inode(dir, res->dir_attr);
486 nfs3_proc_rename_setup(struct rpc_message *msg,
487 struct dentry *old_dentry,
488 struct dentry *new_dentry)
490 msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME];
493 static void nfs3_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data)
495 rpc_call_start(task);
499 nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
500 struct inode *new_dir)
502 struct nfs_renameres *res;
504 if (nfs3_async_handle_jukebox(task, old_dir))
506 res = task->tk_msg.rpc_resp;
508 nfs_post_op_update_inode(old_dir, res->old_fattr);
509 nfs_post_op_update_inode(new_dir, res->new_fattr);
514 nfs3_proc_link(struct inode *inode, struct inode *dir, const struct qstr *name)
516 struct nfs3_linkargs arg = {
517 .fromfh = NFS_FH(inode),
519 .toname = name->name,
522 struct nfs3_linkres res;
523 struct rpc_message msg = {
524 .rpc_proc = &nfs3_procedures[NFS3PROC_LINK],
528 int status = -ENOMEM;
530 dprintk("NFS call link %s\n", name->name);
531 res.fattr = nfs_alloc_fattr();
532 res.dir_attr = nfs_alloc_fattr();
533 if (res.fattr == NULL || res.dir_attr == NULL)
536 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
537 nfs_post_op_update_inode(dir, res.dir_attr);
538 nfs_post_op_update_inode(inode, res.fattr);
540 nfs_free_fattr(res.dir_attr);
541 nfs_free_fattr(res.fattr);
542 dprintk("NFS reply link: %d\n", status);
547 nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
548 unsigned int len, struct iattr *sattr)
550 struct nfs3_createdata *data;
551 struct dentry *d_alias;
552 int status = -ENOMEM;
554 if (len > NFS3_MAXPATHLEN)
555 return -ENAMETOOLONG;
557 dprintk("NFS call symlink %pd\n", dentry);
559 data = nfs3_alloc_createdata();
562 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK];
563 data->arg.symlink.fromfh = NFS_FH(dir);
564 data->arg.symlink.fromname = dentry->d_name.name;
565 data->arg.symlink.fromlen = dentry->d_name.len;
566 data->arg.symlink.pages = &page;
567 data->arg.symlink.pathlen = len;
568 data->arg.symlink.sattr = sattr;
570 d_alias = nfs3_do_create(dir, dentry, data);
571 status = PTR_ERR_OR_ZERO(d_alias);
576 nfs3_free_createdata(data);
578 dprintk("NFS reply symlink: %d\n", status);
583 nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
585 struct posix_acl *default_acl, *acl;
586 struct nfs3_createdata *data;
587 struct dentry *d_alias;
588 int status = -ENOMEM;
590 dprintk("NFS call mkdir %pd\n", dentry);
592 data = nfs3_alloc_createdata();
596 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
600 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR];
601 data->arg.mkdir.fh = NFS_FH(dir);
602 data->arg.mkdir.name = dentry->d_name.name;
603 data->arg.mkdir.len = dentry->d_name.len;
604 data->arg.mkdir.sattr = sattr;
606 d_alias = nfs3_do_create(dir, dentry, data);
607 status = PTR_ERR_OR_ZERO(d_alias);
610 goto out_release_acls;
615 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
619 posix_acl_release(acl);
620 posix_acl_release(default_acl);
622 nfs3_free_createdata(data);
623 dprintk("NFS reply mkdir: %d\n", status);
628 nfs3_proc_rmdir(struct inode *dir, const struct qstr *name)
630 struct nfs_fattr *dir_attr;
631 struct nfs3_diropargs arg = {
636 struct rpc_message msg = {
637 .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR],
640 int status = -ENOMEM;
642 dprintk("NFS call rmdir %s\n", name->name);
643 dir_attr = nfs_alloc_fattr();
644 if (dir_attr == NULL)
647 msg.rpc_resp = dir_attr;
648 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
649 nfs_post_op_update_inode(dir, dir_attr);
650 nfs_free_fattr(dir_attr);
652 dprintk("NFS reply rmdir: %d\n", status);
657 * The READDIR implementation is somewhat hackish - we pass the user buffer
658 * to the encode function, which installs it in the receive iovec.
659 * The decode function itself doesn't perform any decoding, it just makes
660 * sure the reply is syntactically correct.
662 * Also note that this implementation handles both plain readdir and
665 static int nfs3_proc_readdir(struct nfs_readdir_arg *nr_arg,
666 struct nfs_readdir_res *nr_res)
668 struct inode *dir = d_inode(nr_arg->dentry);
669 struct nfs3_readdirargs arg = {
671 .cookie = nr_arg->cookie,
672 .plus = nr_arg->plus,
673 .count = nr_arg->page_len,
674 .pages = nr_arg->pages
676 struct nfs3_readdirres res = {
677 .verf = nr_res->verf,
678 .plus = nr_arg->plus,
680 struct rpc_message msg = {
681 .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR],
684 .rpc_cred = nr_arg->cred,
686 int status = -ENOMEM;
689 msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS];
691 memcpy(arg.verf, nr_arg->verf, sizeof(arg.verf));
693 dprintk("NFS call readdir%s %llu\n", nr_arg->plus ? "plus" : "",
694 (unsigned long long)nr_arg->cookie);
696 res.dir_attr = nfs_alloc_fattr();
697 if (res.dir_attr == NULL)
700 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
702 nfs_invalidate_atime(dir);
703 nfs_refresh_inode(dir, res.dir_attr);
705 nfs_free_fattr(res.dir_attr);
707 dprintk("NFS reply readdir%s: %d\n", nr_arg->plus ? "plus" : "",
713 nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
716 struct posix_acl *default_acl, *acl;
717 struct nfs3_createdata *data;
718 struct dentry *d_alias;
719 int status = -ENOMEM;
721 dprintk("NFS call mknod %pd %u:%u\n", dentry,
722 MAJOR(rdev), MINOR(rdev));
724 data = nfs3_alloc_createdata();
728 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
732 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD];
733 data->arg.mknod.fh = NFS_FH(dir);
734 data->arg.mknod.name = dentry->d_name.name;
735 data->arg.mknod.len = dentry->d_name.len;
736 data->arg.mknod.sattr = sattr;
737 data->arg.mknod.rdev = rdev;
739 switch (sattr->ia_mode & S_IFMT) {
741 data->arg.mknod.type = NF3BLK;
744 data->arg.mknod.type = NF3CHR;
747 data->arg.mknod.type = NF3FIFO;
750 data->arg.mknod.type = NF3SOCK;
754 goto out_release_acls;
757 d_alias = nfs3_do_create(dir, dentry, data);
758 status = PTR_ERR_OR_ZERO(d_alias);
760 goto out_release_acls;
765 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
769 posix_acl_release(acl);
770 posix_acl_release(default_acl);
772 nfs3_free_createdata(data);
773 dprintk("NFS reply mknod: %d\n", status);
778 nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
779 struct nfs_fsstat *stat)
781 struct rpc_message msg = {
782 .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT],
788 dprintk("NFS call fsstat\n");
789 nfs_fattr_init(stat->fattr);
790 status = rpc_call_sync(server->client, &msg, 0);
791 dprintk("NFS reply fsstat: %d\n", status);
796 do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle,
797 struct nfs_fsinfo *info)
799 struct rpc_message msg = {
800 .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
806 dprintk("NFS call fsinfo\n");
807 nfs_fattr_init(info->fattr);
808 status = rpc_call_sync(client, &msg, 0);
809 dprintk("NFS reply fsinfo: %d\n", status);
814 * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via
818 nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
819 struct nfs_fsinfo *info)
823 status = do_proc_fsinfo(server->client, fhandle, info);
824 if (status && server->nfs_client->cl_rpcclient != server->client)
825 status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info);
830 nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
831 struct nfs_pathconf *info)
833 struct rpc_message msg = {
834 .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF],
840 dprintk("NFS call pathconf\n");
841 nfs_fattr_init(info->fattr);
842 status = rpc_call_sync(server->client, &msg, 0);
843 dprintk("NFS reply pathconf: %d\n", status);
847 static int nfs3_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
849 struct inode *inode = hdr->inode;
850 struct nfs_server *server = NFS_SERVER(inode);
852 if (hdr->pgio_done_cb != NULL)
853 return hdr->pgio_done_cb(task, hdr);
855 if (nfs3_async_handle_jukebox(task, inode))
858 if (task->tk_status >= 0 && !server->read_hdrsize)
859 cmpxchg(&server->read_hdrsize, 0, hdr->res.replen);
861 nfs_invalidate_atime(inode);
862 nfs_refresh_inode(inode, &hdr->fattr);
866 static void nfs3_proc_read_setup(struct nfs_pgio_header *hdr,
867 struct rpc_message *msg)
869 msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ];
870 hdr->args.replen = NFS_SERVER(hdr->inode)->read_hdrsize;
873 static int nfs3_proc_pgio_rpc_prepare(struct rpc_task *task,
874 struct nfs_pgio_header *hdr)
876 rpc_call_start(task);
880 static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
882 struct inode *inode = hdr->inode;
884 if (hdr->pgio_done_cb != NULL)
885 return hdr->pgio_done_cb(task, hdr);
887 if (nfs3_async_handle_jukebox(task, inode))
889 if (task->tk_status >= 0)
890 nfs_writeback_update_inode(hdr);
894 static void nfs3_proc_write_setup(struct nfs_pgio_header *hdr,
895 struct rpc_message *msg,
896 struct rpc_clnt **clnt)
898 msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE];
901 static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
903 rpc_call_start(task);
906 static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data)
908 if (data->commit_done_cb != NULL)
909 return data->commit_done_cb(task, data);
911 if (nfs3_async_handle_jukebox(task, data->inode))
913 nfs_refresh_inode(data->inode, data->res.fattr);
917 static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg,
918 struct rpc_clnt **clnt)
920 msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT];
923 static void nfs3_nlm_alloc_call(void *data)
925 struct nfs_lock_context *l_ctx = data;
926 if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) {
927 get_nfs_open_context(l_ctx->open_context);
928 nfs_get_lock_context(l_ctx->open_context);
932 static bool nfs3_nlm_unlock_prepare(struct rpc_task *task, void *data)
934 struct nfs_lock_context *l_ctx = data;
935 if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags))
936 return nfs_async_iocounter_wait(task, l_ctx);
941 static void nfs3_nlm_release_call(void *data)
943 struct nfs_lock_context *l_ctx = data;
944 struct nfs_open_context *ctx;
945 if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) {
946 ctx = l_ctx->open_context;
947 nfs_put_lock_context(l_ctx);
948 put_nfs_open_context(ctx);
952 static const struct nlmclnt_operations nlmclnt_fl_close_lock_ops = {
953 .nlmclnt_alloc_call = nfs3_nlm_alloc_call,
954 .nlmclnt_unlock_prepare = nfs3_nlm_unlock_prepare,
955 .nlmclnt_release_call = nfs3_nlm_release_call,
959 nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
961 struct inode *inode = file_inode(filp);
962 struct nfs_lock_context *l_ctx = NULL;
963 struct nfs_open_context *ctx = nfs_file_open_context(filp);
966 if (fl->fl_flags & FL_CLOSE) {
967 l_ctx = nfs_get_lock_context(ctx);
971 set_bit(NFS_CONTEXT_UNLOCK, &ctx->flags);
974 status = nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl, l_ctx);
977 nfs_put_lock_context(l_ctx);
982 static int nfs3_have_delegation(struct inode *inode, fmode_t flags)
987 static const struct inode_operations nfs3_dir_inode_operations = {
988 .create = nfs_create,
989 .lookup = nfs_lookup,
991 .unlink = nfs_unlink,
992 .symlink = nfs_symlink,
996 .rename = nfs_rename,
997 .permission = nfs_permission,
998 .getattr = nfs_getattr,
999 .setattr = nfs_setattr,
1000 #ifdef CONFIG_NFS_V3_ACL
1001 .listxattr = nfs3_listxattr,
1002 .get_acl = nfs3_get_acl,
1003 .set_acl = nfs3_set_acl,
1007 static const struct inode_operations nfs3_file_inode_operations = {
1008 .permission = nfs_permission,
1009 .getattr = nfs_getattr,
1010 .setattr = nfs_setattr,
1011 #ifdef CONFIG_NFS_V3_ACL
1012 .listxattr = nfs3_listxattr,
1013 .get_acl = nfs3_get_acl,
1014 .set_acl = nfs3_set_acl,
1018 const struct nfs_rpc_ops nfs_v3_clientops = {
1019 .version = 3, /* protocol version */
1020 .dentry_ops = &nfs_dentry_operations,
1021 .dir_inode_ops = &nfs3_dir_inode_operations,
1022 .file_inode_ops = &nfs3_file_inode_operations,
1023 .file_ops = &nfs_file_operations,
1024 .nlmclnt_ops = &nlmclnt_fl_close_lock_ops,
1025 .getroot = nfs3_proc_get_root,
1026 .submount = nfs_submount,
1027 .try_get_tree = nfs_try_get_tree,
1028 .getattr = nfs3_proc_getattr,
1029 .setattr = nfs3_proc_setattr,
1030 .lookup = nfs3_proc_lookup,
1031 .lookupp = nfs3_proc_lookupp,
1032 .access = nfs3_proc_access,
1033 .readlink = nfs3_proc_readlink,
1034 .create = nfs3_proc_create,
1035 .remove = nfs3_proc_remove,
1036 .unlink_setup = nfs3_proc_unlink_setup,
1037 .unlink_rpc_prepare = nfs3_proc_unlink_rpc_prepare,
1038 .unlink_done = nfs3_proc_unlink_done,
1039 .rename_setup = nfs3_proc_rename_setup,
1040 .rename_rpc_prepare = nfs3_proc_rename_rpc_prepare,
1041 .rename_done = nfs3_proc_rename_done,
1042 .link = nfs3_proc_link,
1043 .symlink = nfs3_proc_symlink,
1044 .mkdir = nfs3_proc_mkdir,
1045 .rmdir = nfs3_proc_rmdir,
1046 .readdir = nfs3_proc_readdir,
1047 .mknod = nfs3_proc_mknod,
1048 .statfs = nfs3_proc_statfs,
1049 .fsinfo = nfs3_proc_fsinfo,
1050 .pathconf = nfs3_proc_pathconf,
1051 .decode_dirent = nfs3_decode_dirent,
1052 .pgio_rpc_prepare = nfs3_proc_pgio_rpc_prepare,
1053 .read_setup = nfs3_proc_read_setup,
1054 .read_done = nfs3_read_done,
1055 .write_setup = nfs3_proc_write_setup,
1056 .write_done = nfs3_write_done,
1057 .commit_setup = nfs3_proc_commit_setup,
1058 .commit_rpc_prepare = nfs3_proc_commit_rpc_prepare,
1059 .commit_done = nfs3_commit_done,
1060 .lock = nfs3_proc_lock,
1061 .clear_acl_cache = forget_all_cached_acls,
1062 .close_context = nfs_close_context,
1063 .have_delegation = nfs3_have_delegation,
1064 .alloc_client = nfs_alloc_client,
1065 .init_client = nfs_init_client,
1066 .free_client = nfs_free_client,
1067 .create_server = nfs3_create_server,
1068 .clone_server = nfs3_clone_server,