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],
114 dprintk("NFS call getattr\n");
115 nfs_fattr_init(fattr);
116 status = rpc_call_sync(server->client, &msg, 0);
117 dprintk("NFS reply getattr: %d\n", status);
122 nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
125 struct inode *inode = d_inode(dentry);
126 struct nfs3_sattrargs arg = {
130 struct rpc_message msg = {
131 .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR],
137 dprintk("NFS call setattr\n");
138 if (sattr->ia_valid & ATTR_FILE)
139 msg.rpc_cred = nfs_file_cred(sattr->ia_file);
140 nfs_fattr_init(fattr);
141 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
143 if (NFS_I(inode)->cache_validity & NFS_INO_INVALID_ACL)
144 nfs_zap_acl_cache(inode);
145 nfs_setattr_update_inode(inode, sattr, fattr);
147 dprintk("NFS reply setattr: %d\n", status);
152 nfs3_proc_lookup(struct inode *dir, const struct qstr *name,
153 struct nfs_fh *fhandle, struct nfs_fattr *fattr,
154 struct nfs4_label *label)
156 struct nfs3_diropargs arg = {
161 struct nfs3_diropres res = {
165 struct rpc_message msg = {
166 .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP],
172 dprintk("NFS call lookup %s\n", name->name);
173 res.dir_attr = nfs_alloc_fattr();
174 if (res.dir_attr == NULL)
177 nfs_fattr_init(fattr);
178 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
179 nfs_refresh_inode(dir, res.dir_attr);
180 if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) {
181 msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
182 msg.rpc_argp = fhandle;
183 msg.rpc_resp = fattr;
184 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
186 nfs_free_fattr(res.dir_attr);
187 dprintk("NFS reply lookup: %d\n", status);
191 static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
193 struct nfs3_accessargs arg = {
195 .access = entry->mask,
197 struct nfs3_accessres res;
198 struct rpc_message msg = {
199 .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS],
202 .rpc_cred = entry->cred,
204 int status = -ENOMEM;
206 dprintk("NFS call access\n");
207 res.fattr = nfs_alloc_fattr();
208 if (res.fattr == NULL)
211 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
212 nfs_refresh_inode(inode, res.fattr);
214 nfs_access_set_mask(entry, res.access);
215 nfs_free_fattr(res.fattr);
217 dprintk("NFS reply access: %d\n", status);
221 static int nfs3_proc_readlink(struct inode *inode, struct page *page,
222 unsigned int pgbase, unsigned int pglen)
224 struct nfs_fattr *fattr;
225 struct nfs3_readlinkargs args = {
231 struct rpc_message msg = {
232 .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK],
235 int status = -ENOMEM;
237 dprintk("NFS call readlink\n");
238 fattr = nfs_alloc_fattr();
241 msg.rpc_resp = fattr;
243 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
244 nfs_refresh_inode(inode, fattr);
245 nfs_free_fattr(fattr);
247 dprintk("NFS reply readlink: %d\n", status);
251 struct nfs3_createdata {
252 struct rpc_message msg;
254 struct nfs3_createargs create;
255 struct nfs3_mkdirargs mkdir;
256 struct nfs3_symlinkargs symlink;
257 struct nfs3_mknodargs mknod;
259 struct nfs3_diropres res;
261 struct nfs_fattr fattr;
262 struct nfs_fattr dir_attr;
265 static struct nfs3_createdata *nfs3_alloc_createdata(void)
267 struct nfs3_createdata *data;
269 data = kzalloc(sizeof(*data), GFP_KERNEL);
271 data->msg.rpc_argp = &data->arg;
272 data->msg.rpc_resp = &data->res;
273 data->res.fh = &data->fh;
274 data->res.fattr = &data->fattr;
275 data->res.dir_attr = &data->dir_attr;
276 nfs_fattr_init(data->res.fattr);
277 nfs_fattr_init(data->res.dir_attr);
282 static struct dentry *
283 nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data)
287 status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0);
288 nfs_post_op_update_inode(dir, data->res.dir_attr);
290 return ERR_PTR(status);
292 return nfs_add_or_obtain(dentry, data->res.fh, data->res.fattr, NULL);
295 static void nfs3_free_createdata(struct nfs3_createdata *data)
301 * Create a regular file.
304 nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
307 struct posix_acl *default_acl, *acl;
308 struct nfs3_createdata *data;
309 struct dentry *d_alias;
310 int status = -ENOMEM;
312 dprintk("NFS call create %pd\n", dentry);
314 data = nfs3_alloc_createdata();
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;
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] = cpu_to_be32(jiffies);
328 data->arg.create.verifier[1] = cpu_to_be32(current->pid);
331 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
336 d_alias = nfs3_do_create(dir, dentry, data);
337 status = PTR_ERR_OR_ZERO(d_alias);
339 if (status != -ENOTSUPP)
341 /* If the server doesn't support the exclusive creation
342 * semantics, try again with simple 'guarded' mode. */
343 switch (data->arg.create.createmode) {
344 case NFS3_CREATE_EXCLUSIVE:
345 data->arg.create.createmode = NFS3_CREATE_GUARDED;
348 case NFS3_CREATE_GUARDED:
349 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
352 case NFS3_CREATE_UNCHECKED:
353 goto out_release_acls;
355 nfs_fattr_init(data->res.dir_attr);
356 nfs_fattr_init(data->res.fattr);
360 goto out_release_acls;
365 /* When we created the file with exclusive semantics, make
366 * sure we set the attributes afterwards. */
367 if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) {
368 dprintk("NFS call setattr (post-create)\n");
370 if (!(sattr->ia_valid & ATTR_ATIME_SET))
371 sattr->ia_valid |= ATTR_ATIME;
372 if (!(sattr->ia_valid & ATTR_MTIME_SET))
373 sattr->ia_valid |= ATTR_MTIME;
375 /* Note: we could use a guarded setattr here, but I'm
376 * not sure this buys us anything (and I'd have
377 * to revamp the NFSv3 XDR code) */
378 status = nfs3_proc_setattr(dentry, data->res.fattr, sattr);
379 nfs_post_op_update_inode(d_inode(dentry), data->res.fattr);
380 dprintk("NFS reply setattr (post-create): %d\n", status);
385 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
390 posix_acl_release(acl);
391 posix_acl_release(default_acl);
393 nfs3_free_createdata(data);
394 dprintk("NFS reply create: %d\n", status);
399 nfs3_proc_remove(struct inode *dir, struct dentry *dentry)
401 struct nfs_removeargs arg = {
403 .name = dentry->d_name,
405 struct nfs_removeres res;
406 struct rpc_message msg = {
407 .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE],
411 int status = -ENOMEM;
413 dprintk("NFS call remove %pd2\n", dentry);
414 res.dir_attr = nfs_alloc_fattr();
415 if (res.dir_attr == NULL)
418 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
419 nfs_post_op_update_inode(dir, res.dir_attr);
420 nfs_free_fattr(res.dir_attr);
422 dprintk("NFS reply remove: %d\n", status);
427 nfs3_proc_unlink_setup(struct rpc_message *msg,
428 struct dentry *dentry,
431 msg->rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE];
434 static void nfs3_proc_unlink_rpc_prepare(struct rpc_task *task, struct nfs_unlinkdata *data)
436 rpc_call_start(task);
440 nfs3_proc_unlink_done(struct rpc_task *task, struct inode *dir)
442 struct nfs_removeres *res;
443 if (nfs3_async_handle_jukebox(task, dir))
445 res = task->tk_msg.rpc_resp;
446 nfs_post_op_update_inode(dir, res->dir_attr);
451 nfs3_proc_rename_setup(struct rpc_message *msg,
452 struct dentry *old_dentry,
453 struct dentry *new_dentry)
455 msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME];
458 static void nfs3_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data)
460 rpc_call_start(task);
464 nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
465 struct inode *new_dir)
467 struct nfs_renameres *res;
469 if (nfs3_async_handle_jukebox(task, old_dir))
471 res = task->tk_msg.rpc_resp;
473 nfs_post_op_update_inode(old_dir, res->old_fattr);
474 nfs_post_op_update_inode(new_dir, res->new_fattr);
479 nfs3_proc_link(struct inode *inode, struct inode *dir, const struct qstr *name)
481 struct nfs3_linkargs arg = {
482 .fromfh = NFS_FH(inode),
484 .toname = name->name,
487 struct nfs3_linkres res;
488 struct rpc_message msg = {
489 .rpc_proc = &nfs3_procedures[NFS3PROC_LINK],
493 int status = -ENOMEM;
495 dprintk("NFS call link %s\n", name->name);
496 res.fattr = nfs_alloc_fattr();
497 res.dir_attr = nfs_alloc_fattr();
498 if (res.fattr == NULL || res.dir_attr == NULL)
501 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
502 nfs_post_op_update_inode(dir, res.dir_attr);
503 nfs_post_op_update_inode(inode, res.fattr);
505 nfs_free_fattr(res.dir_attr);
506 nfs_free_fattr(res.fattr);
507 dprintk("NFS reply link: %d\n", status);
512 nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
513 unsigned int len, struct iattr *sattr)
515 struct nfs3_createdata *data;
516 struct dentry *d_alias;
517 int status = -ENOMEM;
519 if (len > NFS3_MAXPATHLEN)
520 return -ENAMETOOLONG;
522 dprintk("NFS call symlink %pd\n", dentry);
524 data = nfs3_alloc_createdata();
527 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK];
528 data->arg.symlink.fromfh = NFS_FH(dir);
529 data->arg.symlink.fromname = dentry->d_name.name;
530 data->arg.symlink.fromlen = dentry->d_name.len;
531 data->arg.symlink.pages = &page;
532 data->arg.symlink.pathlen = len;
533 data->arg.symlink.sattr = sattr;
535 d_alias = nfs3_do_create(dir, dentry, data);
536 status = PTR_ERR_OR_ZERO(d_alias);
541 nfs3_free_createdata(data);
543 dprintk("NFS reply symlink: %d\n", status);
548 nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
550 struct posix_acl *default_acl, *acl;
551 struct nfs3_createdata *data;
552 struct dentry *d_alias;
553 int status = -ENOMEM;
555 dprintk("NFS call mkdir %pd\n", dentry);
557 data = nfs3_alloc_createdata();
561 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
565 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR];
566 data->arg.mkdir.fh = NFS_FH(dir);
567 data->arg.mkdir.name = dentry->d_name.name;
568 data->arg.mkdir.len = dentry->d_name.len;
569 data->arg.mkdir.sattr = sattr;
571 d_alias = nfs3_do_create(dir, dentry, data);
572 status = PTR_ERR_OR_ZERO(d_alias);
575 goto out_release_acls;
580 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
584 posix_acl_release(acl);
585 posix_acl_release(default_acl);
587 nfs3_free_createdata(data);
588 dprintk("NFS reply mkdir: %d\n", status);
593 nfs3_proc_rmdir(struct inode *dir, const struct qstr *name)
595 struct nfs_fattr *dir_attr;
596 struct nfs3_diropargs arg = {
601 struct rpc_message msg = {
602 .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR],
605 int status = -ENOMEM;
607 dprintk("NFS call rmdir %s\n", name->name);
608 dir_attr = nfs_alloc_fattr();
609 if (dir_attr == NULL)
612 msg.rpc_resp = dir_attr;
613 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
614 nfs_post_op_update_inode(dir, dir_attr);
615 nfs_free_fattr(dir_attr);
617 dprintk("NFS reply rmdir: %d\n", status);
622 * The READDIR implementation is somewhat hackish - we pass the user buffer
623 * to the encode function, which installs it in the receive iovec.
624 * The decode function itself doesn't perform any decoding, it just makes
625 * sure the reply is syntactically correct.
627 * Also note that this implementation handles both plain readdir and
631 nfs3_proc_readdir(struct dentry *dentry, const struct cred *cred,
632 u64 cookie, struct page **pages, unsigned int count, bool plus)
634 struct inode *dir = d_inode(dentry);
635 __be32 *verf = NFS_I(dir)->cookieverf;
636 struct nfs3_readdirargs arg = {
639 .verf = {verf[0], verf[1]},
644 struct nfs3_readdirres res = {
648 struct rpc_message msg = {
649 .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR],
654 int status = -ENOMEM;
657 msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS];
659 dprintk("NFS call readdir%s %d\n",
660 plus? "plus" : "", (unsigned int) cookie);
662 res.dir_attr = nfs_alloc_fattr();
663 if (res.dir_attr == NULL)
666 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
668 nfs_invalidate_atime(dir);
669 nfs_refresh_inode(dir, res.dir_attr);
671 nfs_free_fattr(res.dir_attr);
673 dprintk("NFS reply readdir%s: %d\n",
674 plus? "plus" : "", status);
679 nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
682 struct posix_acl *default_acl, *acl;
683 struct nfs3_createdata *data;
684 struct dentry *d_alias;
685 int status = -ENOMEM;
687 dprintk("NFS call mknod %pd %u:%u\n", dentry,
688 MAJOR(rdev), MINOR(rdev));
690 data = nfs3_alloc_createdata();
694 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
698 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD];
699 data->arg.mknod.fh = NFS_FH(dir);
700 data->arg.mknod.name = dentry->d_name.name;
701 data->arg.mknod.len = dentry->d_name.len;
702 data->arg.mknod.sattr = sattr;
703 data->arg.mknod.rdev = rdev;
705 switch (sattr->ia_mode & S_IFMT) {
707 data->arg.mknod.type = NF3BLK;
710 data->arg.mknod.type = NF3CHR;
713 data->arg.mknod.type = NF3FIFO;
716 data->arg.mknod.type = NF3SOCK;
720 goto out_release_acls;
723 d_alias = nfs3_do_create(dir, dentry, data);
724 status = PTR_ERR_OR_ZERO(d_alias);
726 goto out_release_acls;
731 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
735 posix_acl_release(acl);
736 posix_acl_release(default_acl);
738 nfs3_free_createdata(data);
739 dprintk("NFS reply mknod: %d\n", status);
744 nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
745 struct nfs_fsstat *stat)
747 struct rpc_message msg = {
748 .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT],
754 dprintk("NFS call fsstat\n");
755 nfs_fattr_init(stat->fattr);
756 status = rpc_call_sync(server->client, &msg, 0);
757 dprintk("NFS reply fsstat: %d\n", status);
762 do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle,
763 struct nfs_fsinfo *info)
765 struct rpc_message msg = {
766 .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
772 dprintk("NFS call fsinfo\n");
773 nfs_fattr_init(info->fattr);
774 status = rpc_call_sync(client, &msg, 0);
775 dprintk("NFS reply fsinfo: %d\n", status);
780 * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via
784 nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
785 struct nfs_fsinfo *info)
789 status = do_proc_fsinfo(server->client, fhandle, info);
790 if (status && server->nfs_client->cl_rpcclient != server->client)
791 status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info);
796 nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
797 struct nfs_pathconf *info)
799 struct rpc_message msg = {
800 .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF],
806 dprintk("NFS call pathconf\n");
807 nfs_fattr_init(info->fattr);
808 status = rpc_call_sync(server->client, &msg, 0);
809 dprintk("NFS reply pathconf: %d\n", status);
813 static int nfs3_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
815 struct inode *inode = hdr->inode;
816 struct nfs_server *server = NFS_SERVER(inode);
818 if (hdr->pgio_done_cb != NULL)
819 return hdr->pgio_done_cb(task, hdr);
821 if (nfs3_async_handle_jukebox(task, inode))
824 if (task->tk_status >= 0 && !server->read_hdrsize)
825 cmpxchg(&server->read_hdrsize, 0, hdr->res.replen);
827 nfs_invalidate_atime(inode);
828 nfs_refresh_inode(inode, &hdr->fattr);
832 static void nfs3_proc_read_setup(struct nfs_pgio_header *hdr,
833 struct rpc_message *msg)
835 msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ];
836 hdr->args.replen = NFS_SERVER(hdr->inode)->read_hdrsize;
839 static int nfs3_proc_pgio_rpc_prepare(struct rpc_task *task,
840 struct nfs_pgio_header *hdr)
842 rpc_call_start(task);
846 static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
848 struct inode *inode = hdr->inode;
850 if (hdr->pgio_done_cb != NULL)
851 return hdr->pgio_done_cb(task, hdr);
853 if (nfs3_async_handle_jukebox(task, inode))
855 if (task->tk_status >= 0)
856 nfs_writeback_update_inode(hdr);
860 static void nfs3_proc_write_setup(struct nfs_pgio_header *hdr,
861 struct rpc_message *msg,
862 struct rpc_clnt **clnt)
864 msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE];
867 static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
869 rpc_call_start(task);
872 static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data)
874 if (data->commit_done_cb != NULL)
875 return data->commit_done_cb(task, data);
877 if (nfs3_async_handle_jukebox(task, data->inode))
879 nfs_refresh_inode(data->inode, data->res.fattr);
883 static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg,
884 struct rpc_clnt **clnt)
886 msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT];
889 static void nfs3_nlm_alloc_call(void *data)
891 struct nfs_lock_context *l_ctx = data;
892 if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) {
893 get_nfs_open_context(l_ctx->open_context);
894 nfs_get_lock_context(l_ctx->open_context);
898 static bool nfs3_nlm_unlock_prepare(struct rpc_task *task, void *data)
900 struct nfs_lock_context *l_ctx = data;
901 if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags))
902 return nfs_async_iocounter_wait(task, l_ctx);
907 static void nfs3_nlm_release_call(void *data)
909 struct nfs_lock_context *l_ctx = data;
910 struct nfs_open_context *ctx;
911 if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) {
912 ctx = l_ctx->open_context;
913 nfs_put_lock_context(l_ctx);
914 put_nfs_open_context(ctx);
918 static const struct nlmclnt_operations nlmclnt_fl_close_lock_ops = {
919 .nlmclnt_alloc_call = nfs3_nlm_alloc_call,
920 .nlmclnt_unlock_prepare = nfs3_nlm_unlock_prepare,
921 .nlmclnt_release_call = nfs3_nlm_release_call,
925 nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
927 struct inode *inode = file_inode(filp);
928 struct nfs_lock_context *l_ctx = NULL;
929 struct nfs_open_context *ctx = nfs_file_open_context(filp);
932 if (fl->fl_flags & FL_CLOSE) {
933 l_ctx = nfs_get_lock_context(ctx);
937 set_bit(NFS_CONTEXT_UNLOCK, &ctx->flags);
940 status = nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl, l_ctx);
943 nfs_put_lock_context(l_ctx);
948 static int nfs3_have_delegation(struct inode *inode, fmode_t flags)
953 static const struct inode_operations nfs3_dir_inode_operations = {
954 .create = nfs_create,
955 .lookup = nfs_lookup,
957 .unlink = nfs_unlink,
958 .symlink = nfs_symlink,
962 .rename = nfs_rename,
963 .permission = nfs_permission,
964 .getattr = nfs_getattr,
965 .setattr = nfs_setattr,
966 #ifdef CONFIG_NFS_V3_ACL
967 .listxattr = nfs3_listxattr,
968 .get_acl = nfs3_get_acl,
969 .set_acl = nfs3_set_acl,
973 static const struct inode_operations nfs3_file_inode_operations = {
974 .permission = nfs_permission,
975 .getattr = nfs_getattr,
976 .setattr = nfs_setattr,
977 #ifdef CONFIG_NFS_V3_ACL
978 .listxattr = nfs3_listxattr,
979 .get_acl = nfs3_get_acl,
980 .set_acl = nfs3_set_acl,
984 const struct nfs_rpc_ops nfs_v3_clientops = {
985 .version = 3, /* protocol version */
986 .dentry_ops = &nfs_dentry_operations,
987 .dir_inode_ops = &nfs3_dir_inode_operations,
988 .file_inode_ops = &nfs3_file_inode_operations,
989 .file_ops = &nfs_file_operations,
990 .nlmclnt_ops = &nlmclnt_fl_close_lock_ops,
991 .getroot = nfs3_proc_get_root,
992 .submount = nfs_submount,
993 .try_mount = nfs_try_mount,
994 .getattr = nfs3_proc_getattr,
995 .setattr = nfs3_proc_setattr,
996 .lookup = nfs3_proc_lookup,
997 .access = nfs3_proc_access,
998 .readlink = nfs3_proc_readlink,
999 .create = nfs3_proc_create,
1000 .remove = nfs3_proc_remove,
1001 .unlink_setup = nfs3_proc_unlink_setup,
1002 .unlink_rpc_prepare = nfs3_proc_unlink_rpc_prepare,
1003 .unlink_done = nfs3_proc_unlink_done,
1004 .rename_setup = nfs3_proc_rename_setup,
1005 .rename_rpc_prepare = nfs3_proc_rename_rpc_prepare,
1006 .rename_done = nfs3_proc_rename_done,
1007 .link = nfs3_proc_link,
1008 .symlink = nfs3_proc_symlink,
1009 .mkdir = nfs3_proc_mkdir,
1010 .rmdir = nfs3_proc_rmdir,
1011 .readdir = nfs3_proc_readdir,
1012 .mknod = nfs3_proc_mknod,
1013 .statfs = nfs3_proc_statfs,
1014 .fsinfo = nfs3_proc_fsinfo,
1015 .pathconf = nfs3_proc_pathconf,
1016 .decode_dirent = nfs3_decode_dirent,
1017 .pgio_rpc_prepare = nfs3_proc_pgio_rpc_prepare,
1018 .read_setup = nfs3_proc_read_setup,
1019 .read_done = nfs3_read_done,
1020 .write_setup = nfs3_proc_write_setup,
1021 .write_done = nfs3_write_done,
1022 .commit_setup = nfs3_proc_commit_setup,
1023 .commit_rpc_prepare = nfs3_proc_commit_rpc_prepare,
1024 .commit_done = nfs3_commit_done,
1025 .lock = nfs3_proc_lock,
1026 .clear_acl_cache = forget_all_cached_acls,
1027 .close_context = nfs_close_context,
1028 .have_delegation = nfs3_have_delegation,
1029 .alloc_client = nfs_alloc_client,
1030 .init_client = nfs_init_client,
1031 .free_client = nfs_free_client,
1032 .create_server = nfs3_create_server,
1033 .clone_server = nfs3_clone_server,