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)
106 struct rpc_message msg = {
107 .rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR],
113 dprintk("NFS call getattr\n");
114 nfs_fattr_init(fattr);
115 status = rpc_call_sync(server->client, &msg, 0);
116 dprintk("NFS reply getattr: %d\n", status);
121 nfs3_proc_setattr(struct dentry *dentry, struct nfs_fattr *fattr,
124 struct inode *inode = d_inode(dentry);
125 struct nfs3_sattrargs arg = {
129 struct rpc_message msg = {
130 .rpc_proc = &nfs3_procedures[NFS3PROC_SETATTR],
136 dprintk("NFS call setattr\n");
137 if (sattr->ia_valid & ATTR_FILE)
138 msg.rpc_cred = nfs_file_cred(sattr->ia_file);
139 nfs_fattr_init(fattr);
140 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
142 nfs_setattr_update_inode(inode, sattr, fattr);
143 dprintk("NFS reply setattr: %d\n", status);
148 nfs3_proc_lookup(struct inode *dir, const struct qstr *name,
149 struct nfs_fh *fhandle, struct nfs_fattr *fattr,
150 struct nfs4_label *label)
152 struct nfs3_diropargs arg = {
157 struct nfs3_diropres res = {
161 struct rpc_message msg = {
162 .rpc_proc = &nfs3_procedures[NFS3PROC_LOOKUP],
168 dprintk("NFS call lookup %s\n", name->name);
169 res.dir_attr = nfs_alloc_fattr();
170 if (res.dir_attr == NULL)
173 nfs_fattr_init(fattr);
174 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
175 nfs_refresh_inode(dir, res.dir_attr);
176 if (status >= 0 && !(fattr->valid & NFS_ATTR_FATTR)) {
177 msg.rpc_proc = &nfs3_procedures[NFS3PROC_GETATTR];
178 msg.rpc_argp = fhandle;
179 msg.rpc_resp = fattr;
180 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
182 nfs_free_fattr(res.dir_attr);
183 dprintk("NFS reply lookup: %d\n", status);
187 static int nfs3_proc_access(struct inode *inode, struct nfs_access_entry *entry)
189 struct nfs3_accessargs arg = {
192 struct nfs3_accessres res;
193 struct rpc_message msg = {
194 .rpc_proc = &nfs3_procedures[NFS3PROC_ACCESS],
197 .rpc_cred = entry->cred,
199 int mode = entry->mask;
200 int status = -ENOMEM;
202 dprintk("NFS call access\n");
205 arg.access |= NFS3_ACCESS_READ;
206 if (S_ISDIR(inode->i_mode)) {
207 if (mode & MAY_WRITE)
208 arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND | NFS3_ACCESS_DELETE;
210 arg.access |= NFS3_ACCESS_LOOKUP;
212 if (mode & MAY_WRITE)
213 arg.access |= NFS3_ACCESS_MODIFY | NFS3_ACCESS_EXTEND;
215 arg.access |= NFS3_ACCESS_EXECUTE;
218 res.fattr = nfs_alloc_fattr();
219 if (res.fattr == NULL)
222 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
223 nfs_refresh_inode(inode, res.fattr);
225 nfs_access_set_mask(entry, res.access);
226 nfs_free_fattr(res.fattr);
228 dprintk("NFS reply access: %d\n", status);
232 static int nfs3_proc_readlink(struct inode *inode, struct page *page,
233 unsigned int pgbase, unsigned int pglen)
235 struct nfs_fattr *fattr;
236 struct nfs3_readlinkargs args = {
242 struct rpc_message msg = {
243 .rpc_proc = &nfs3_procedures[NFS3PROC_READLINK],
246 int status = -ENOMEM;
248 dprintk("NFS call readlink\n");
249 fattr = nfs_alloc_fattr();
252 msg.rpc_resp = fattr;
254 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
255 nfs_refresh_inode(inode, fattr);
256 nfs_free_fattr(fattr);
258 dprintk("NFS reply readlink: %d\n", status);
262 struct nfs3_createdata {
263 struct rpc_message msg;
265 struct nfs3_createargs create;
266 struct nfs3_mkdirargs mkdir;
267 struct nfs3_symlinkargs symlink;
268 struct nfs3_mknodargs mknod;
270 struct nfs3_diropres res;
272 struct nfs_fattr fattr;
273 struct nfs_fattr dir_attr;
276 static struct nfs3_createdata *nfs3_alloc_createdata(void)
278 struct nfs3_createdata *data;
280 data = kzalloc(sizeof(*data), GFP_KERNEL);
282 data->msg.rpc_argp = &data->arg;
283 data->msg.rpc_resp = &data->res;
284 data->res.fh = &data->fh;
285 data->res.fattr = &data->fattr;
286 data->res.dir_attr = &data->dir_attr;
287 nfs_fattr_init(data->res.fattr);
288 nfs_fattr_init(data->res.dir_attr);
293 static int nfs3_do_create(struct inode *dir, struct dentry *dentry, struct nfs3_createdata *data)
297 status = rpc_call_sync(NFS_CLIENT(dir), &data->msg, 0);
298 nfs_post_op_update_inode(dir, data->res.dir_attr);
300 status = nfs_instantiate(dentry, data->res.fh, data->res.fattr, NULL);
304 static void nfs3_free_createdata(struct nfs3_createdata *data)
310 * Create a regular file.
313 nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
316 struct posix_acl *default_acl, *acl;
317 struct nfs3_createdata *data;
318 int status = -ENOMEM;
320 dprintk("NFS call create %pd\n", dentry);
322 data = nfs3_alloc_createdata();
326 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_CREATE];
327 data->arg.create.fh = NFS_FH(dir);
328 data->arg.create.name = dentry->d_name.name;
329 data->arg.create.len = dentry->d_name.len;
330 data->arg.create.sattr = sattr;
332 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
333 if (flags & O_EXCL) {
334 data->arg.create.createmode = NFS3_CREATE_EXCLUSIVE;
335 data->arg.create.verifier[0] = cpu_to_be32(jiffies);
336 data->arg.create.verifier[1] = cpu_to_be32(current->pid);
339 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
344 status = nfs3_do_create(dir, dentry, data);
346 if (status != -ENOTSUPP)
348 /* If the server doesn't support the exclusive creation
349 * semantics, try again with simple 'guarded' mode. */
350 switch (data->arg.create.createmode) {
351 case NFS3_CREATE_EXCLUSIVE:
352 data->arg.create.createmode = NFS3_CREATE_GUARDED;
355 case NFS3_CREATE_GUARDED:
356 data->arg.create.createmode = NFS3_CREATE_UNCHECKED;
359 case NFS3_CREATE_UNCHECKED:
362 nfs_fattr_init(data->res.dir_attr);
363 nfs_fattr_init(data->res.fattr);
367 goto out_release_acls;
369 /* When we created the file with exclusive semantics, make
370 * sure we set the attributes afterwards. */
371 if (data->arg.create.createmode == NFS3_CREATE_EXCLUSIVE) {
372 dprintk("NFS call setattr (post-create)\n");
374 if (!(sattr->ia_valid & ATTR_ATIME_SET))
375 sattr->ia_valid |= ATTR_ATIME;
376 if (!(sattr->ia_valid & ATTR_MTIME_SET))
377 sattr->ia_valid |= ATTR_MTIME;
379 /* Note: we could use a guarded setattr here, but I'm
380 * not sure this buys us anything (and I'd have
381 * to revamp the NFSv3 XDR code) */
382 status = nfs3_proc_setattr(dentry, data->res.fattr, sattr);
383 nfs_post_op_update_inode(d_inode(dentry), data->res.fattr);
384 dprintk("NFS reply setattr (post-create): %d\n", status);
386 goto out_release_acls;
389 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
392 posix_acl_release(acl);
393 posix_acl_release(default_acl);
395 nfs3_free_createdata(data);
396 dprintk("NFS reply create: %d\n", status);
401 nfs3_proc_remove(struct inode *dir, const struct qstr *name)
403 struct nfs_removeargs arg = {
407 struct nfs_removeres res;
408 struct rpc_message msg = {
409 .rpc_proc = &nfs3_procedures[NFS3PROC_REMOVE],
413 int status = -ENOMEM;
415 dprintk("NFS call remove %s\n", name->name);
416 res.dir_attr = nfs_alloc_fattr();
417 if (res.dir_attr == NULL)
420 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
421 nfs_post_op_update_inode(dir, res.dir_attr);
422 nfs_free_fattr(res.dir_attr);
424 dprintk("NFS reply remove: %d\n", status);
429 nfs3_proc_unlink_setup(struct rpc_message *msg, struct inode *dir)
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, struct inode *dir)
453 msg->rpc_proc = &nfs3_procedures[NFS3PROC_RENAME];
456 static void nfs3_proc_rename_rpc_prepare(struct rpc_task *task, struct nfs_renamedata *data)
458 rpc_call_start(task);
462 nfs3_proc_rename_done(struct rpc_task *task, struct inode *old_dir,
463 struct inode *new_dir)
465 struct nfs_renameres *res;
467 if (nfs3_async_handle_jukebox(task, old_dir))
469 res = task->tk_msg.rpc_resp;
471 nfs_post_op_update_inode(old_dir, res->old_fattr);
472 nfs_post_op_update_inode(new_dir, res->new_fattr);
477 nfs3_proc_link(struct inode *inode, struct inode *dir, const struct qstr *name)
479 struct nfs3_linkargs arg = {
480 .fromfh = NFS_FH(inode),
482 .toname = name->name,
485 struct nfs3_linkres res;
486 struct rpc_message msg = {
487 .rpc_proc = &nfs3_procedures[NFS3PROC_LINK],
491 int status = -ENOMEM;
493 dprintk("NFS call link %s\n", name->name);
494 res.fattr = nfs_alloc_fattr();
495 res.dir_attr = nfs_alloc_fattr();
496 if (res.fattr == NULL || res.dir_attr == NULL)
499 status = rpc_call_sync(NFS_CLIENT(inode), &msg, 0);
500 nfs_post_op_update_inode(dir, res.dir_attr);
501 nfs_post_op_update_inode(inode, res.fattr);
503 nfs_free_fattr(res.dir_attr);
504 nfs_free_fattr(res.fattr);
505 dprintk("NFS reply link: %d\n", status);
510 nfs3_proc_symlink(struct inode *dir, struct dentry *dentry, struct page *page,
511 unsigned int len, struct iattr *sattr)
513 struct nfs3_createdata *data;
514 int status = -ENOMEM;
516 if (len > NFS3_MAXPATHLEN)
517 return -ENAMETOOLONG;
519 dprintk("NFS call symlink %pd\n", dentry);
521 data = nfs3_alloc_createdata();
524 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_SYMLINK];
525 data->arg.symlink.fromfh = NFS_FH(dir);
526 data->arg.symlink.fromname = dentry->d_name.name;
527 data->arg.symlink.fromlen = dentry->d_name.len;
528 data->arg.symlink.pages = &page;
529 data->arg.symlink.pathlen = len;
530 data->arg.symlink.sattr = sattr;
532 status = nfs3_do_create(dir, dentry, data);
534 nfs3_free_createdata(data);
536 dprintk("NFS reply symlink: %d\n", status);
541 nfs3_proc_mkdir(struct inode *dir, struct dentry *dentry, struct iattr *sattr)
543 struct posix_acl *default_acl, *acl;
544 struct nfs3_createdata *data;
545 int status = -ENOMEM;
547 dprintk("NFS call mkdir %pd\n", dentry);
549 data = nfs3_alloc_createdata();
553 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
557 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKDIR];
558 data->arg.mkdir.fh = NFS_FH(dir);
559 data->arg.mkdir.name = dentry->d_name.name;
560 data->arg.mkdir.len = dentry->d_name.len;
561 data->arg.mkdir.sattr = sattr;
563 status = nfs3_do_create(dir, dentry, data);
565 goto out_release_acls;
567 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
570 posix_acl_release(acl);
571 posix_acl_release(default_acl);
573 nfs3_free_createdata(data);
574 dprintk("NFS reply mkdir: %d\n", status);
579 nfs3_proc_rmdir(struct inode *dir, const struct qstr *name)
581 struct nfs_fattr *dir_attr;
582 struct nfs3_diropargs arg = {
587 struct rpc_message msg = {
588 .rpc_proc = &nfs3_procedures[NFS3PROC_RMDIR],
591 int status = -ENOMEM;
593 dprintk("NFS call rmdir %s\n", name->name);
594 dir_attr = nfs_alloc_fattr();
595 if (dir_attr == NULL)
598 msg.rpc_resp = dir_attr;
599 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
600 nfs_post_op_update_inode(dir, dir_attr);
601 nfs_free_fattr(dir_attr);
603 dprintk("NFS reply rmdir: %d\n", status);
608 * The READDIR implementation is somewhat hackish - we pass the user buffer
609 * to the encode function, which installs it in the receive iovec.
610 * The decode function itself doesn't perform any decoding, it just makes
611 * sure the reply is syntactically correct.
613 * Also note that this implementation handles both plain readdir and
617 nfs3_proc_readdir(struct dentry *dentry, struct rpc_cred *cred,
618 u64 cookie, struct page **pages, unsigned int count, bool plus)
620 struct inode *dir = d_inode(dentry);
621 __be32 *verf = NFS_I(dir)->cookieverf;
622 struct nfs3_readdirargs arg = {
625 .verf = {verf[0], verf[1]},
630 struct nfs3_readdirres res = {
634 struct rpc_message msg = {
635 .rpc_proc = &nfs3_procedures[NFS3PROC_READDIR],
640 int status = -ENOMEM;
643 msg.rpc_proc = &nfs3_procedures[NFS3PROC_READDIRPLUS];
645 dprintk("NFS call readdir%s %d\n",
646 plus? "plus" : "", (unsigned int) cookie);
648 res.dir_attr = nfs_alloc_fattr();
649 if (res.dir_attr == NULL)
652 status = rpc_call_sync(NFS_CLIENT(dir), &msg, 0);
654 nfs_invalidate_atime(dir);
655 nfs_refresh_inode(dir, res.dir_attr);
657 nfs_free_fattr(res.dir_attr);
659 dprintk("NFS reply readdir%s: %d\n",
660 plus? "plus" : "", status);
665 nfs3_proc_mknod(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
668 struct posix_acl *default_acl, *acl;
669 struct nfs3_createdata *data;
670 int status = -ENOMEM;
672 dprintk("NFS call mknod %pd %u:%u\n", dentry,
673 MAJOR(rdev), MINOR(rdev));
675 data = nfs3_alloc_createdata();
679 status = posix_acl_create(dir, &sattr->ia_mode, &default_acl, &acl);
683 data->msg.rpc_proc = &nfs3_procedures[NFS3PROC_MKNOD];
684 data->arg.mknod.fh = NFS_FH(dir);
685 data->arg.mknod.name = dentry->d_name.name;
686 data->arg.mknod.len = dentry->d_name.len;
687 data->arg.mknod.sattr = sattr;
688 data->arg.mknod.rdev = rdev;
690 switch (sattr->ia_mode & S_IFMT) {
692 data->arg.mknod.type = NF3BLK;
695 data->arg.mknod.type = NF3CHR;
698 data->arg.mknod.type = NF3FIFO;
701 data->arg.mknod.type = NF3SOCK;
708 status = nfs3_do_create(dir, dentry, data);
710 goto out_release_acls;
712 status = nfs3_proc_setacls(d_inode(dentry), acl, default_acl);
715 posix_acl_release(acl);
716 posix_acl_release(default_acl);
718 nfs3_free_createdata(data);
719 dprintk("NFS reply mknod: %d\n", status);
724 nfs3_proc_statfs(struct nfs_server *server, struct nfs_fh *fhandle,
725 struct nfs_fsstat *stat)
727 struct rpc_message msg = {
728 .rpc_proc = &nfs3_procedures[NFS3PROC_FSSTAT],
734 dprintk("NFS call fsstat\n");
735 nfs_fattr_init(stat->fattr);
736 status = rpc_call_sync(server->client, &msg, 0);
737 dprintk("NFS reply fsstat: %d\n", status);
742 do_proc_fsinfo(struct rpc_clnt *client, struct nfs_fh *fhandle,
743 struct nfs_fsinfo *info)
745 struct rpc_message msg = {
746 .rpc_proc = &nfs3_procedures[NFS3PROC_FSINFO],
752 dprintk("NFS call fsinfo\n");
753 nfs_fattr_init(info->fattr);
754 status = rpc_call_sync(client, &msg, 0);
755 dprintk("NFS reply fsinfo: %d\n", status);
760 * Bare-bones access to fsinfo: this is for nfs_get_root/nfs_get_sb via
764 nfs3_proc_fsinfo(struct nfs_server *server, struct nfs_fh *fhandle,
765 struct nfs_fsinfo *info)
769 status = do_proc_fsinfo(server->client, fhandle, info);
770 if (status && server->nfs_client->cl_rpcclient != server->client)
771 status = do_proc_fsinfo(server->nfs_client->cl_rpcclient, fhandle, info);
776 nfs3_proc_pathconf(struct nfs_server *server, struct nfs_fh *fhandle,
777 struct nfs_pathconf *info)
779 struct rpc_message msg = {
780 .rpc_proc = &nfs3_procedures[NFS3PROC_PATHCONF],
786 dprintk("NFS call pathconf\n");
787 nfs_fattr_init(info->fattr);
788 status = rpc_call_sync(server->client, &msg, 0);
789 dprintk("NFS reply pathconf: %d\n", status);
793 static int nfs3_read_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
795 struct inode *inode = hdr->inode;
797 if (hdr->pgio_done_cb != NULL)
798 return hdr->pgio_done_cb(task, hdr);
800 if (nfs3_async_handle_jukebox(task, inode))
803 nfs_invalidate_atime(inode);
804 nfs_refresh_inode(inode, &hdr->fattr);
808 static void nfs3_proc_read_setup(struct nfs_pgio_header *hdr,
809 struct rpc_message *msg)
811 msg->rpc_proc = &nfs3_procedures[NFS3PROC_READ];
814 static int nfs3_proc_pgio_rpc_prepare(struct rpc_task *task,
815 struct nfs_pgio_header *hdr)
817 rpc_call_start(task);
821 static int nfs3_write_done(struct rpc_task *task, struct nfs_pgio_header *hdr)
823 struct inode *inode = hdr->inode;
825 if (hdr->pgio_done_cb != NULL)
826 return hdr->pgio_done_cb(task, hdr);
828 if (nfs3_async_handle_jukebox(task, inode))
830 if (task->tk_status >= 0)
831 nfs_writeback_update_inode(hdr);
835 static void nfs3_proc_write_setup(struct nfs_pgio_header *hdr,
836 struct rpc_message *msg)
838 msg->rpc_proc = &nfs3_procedures[NFS3PROC_WRITE];
841 static void nfs3_proc_commit_rpc_prepare(struct rpc_task *task, struct nfs_commit_data *data)
843 rpc_call_start(task);
846 static int nfs3_commit_done(struct rpc_task *task, struct nfs_commit_data *data)
848 if (data->commit_done_cb != NULL)
849 return data->commit_done_cb(task, data);
851 if (nfs3_async_handle_jukebox(task, data->inode))
853 nfs_refresh_inode(data->inode, data->res.fattr);
857 static void nfs3_proc_commit_setup(struct nfs_commit_data *data, struct rpc_message *msg)
859 msg->rpc_proc = &nfs3_procedures[NFS3PROC_COMMIT];
862 static void nfs3_nlm_alloc_call(void *data)
864 struct nfs_lock_context *l_ctx = data;
865 if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) {
866 get_nfs_open_context(l_ctx->open_context);
867 nfs_get_lock_context(l_ctx->open_context);
871 static bool nfs3_nlm_unlock_prepare(struct rpc_task *task, void *data)
873 struct nfs_lock_context *l_ctx = data;
874 if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags))
875 return nfs_async_iocounter_wait(task, l_ctx);
880 static void nfs3_nlm_release_call(void *data)
882 struct nfs_lock_context *l_ctx = data;
883 struct nfs_open_context *ctx;
884 if (l_ctx && test_bit(NFS_CONTEXT_UNLOCK, &l_ctx->open_context->flags)) {
885 ctx = l_ctx->open_context;
886 nfs_put_lock_context(l_ctx);
887 put_nfs_open_context(ctx);
891 const struct nlmclnt_operations nlmclnt_fl_close_lock_ops = {
892 .nlmclnt_alloc_call = nfs3_nlm_alloc_call,
893 .nlmclnt_unlock_prepare = nfs3_nlm_unlock_prepare,
894 .nlmclnt_release_call = nfs3_nlm_release_call,
898 nfs3_proc_lock(struct file *filp, int cmd, struct file_lock *fl)
900 struct inode *inode = file_inode(filp);
901 struct nfs_lock_context *l_ctx = NULL;
902 struct nfs_open_context *ctx = nfs_file_open_context(filp);
905 if (fl->fl_flags & FL_CLOSE) {
906 l_ctx = nfs_get_lock_context(ctx);
910 set_bit(NFS_CONTEXT_UNLOCK, &ctx->flags);
913 status = nlmclnt_proc(NFS_SERVER(inode)->nlm_host, cmd, fl, l_ctx);
916 nfs_put_lock_context(l_ctx);
921 static int nfs3_have_delegation(struct inode *inode, fmode_t flags)
926 static int nfs3_return_delegation(struct inode *inode)
932 static const struct inode_operations nfs3_dir_inode_operations = {
933 .create = nfs_create,
934 .lookup = nfs_lookup,
936 .unlink = nfs_unlink,
937 .symlink = nfs_symlink,
941 .rename = nfs_rename,
942 .permission = nfs_permission,
943 .getattr = nfs_getattr,
944 .setattr = nfs_setattr,
945 #ifdef CONFIG_NFS_V3_ACL
946 .listxattr = nfs3_listxattr,
947 .get_acl = nfs3_get_acl,
948 .set_acl = nfs3_set_acl,
952 static const struct inode_operations nfs3_file_inode_operations = {
953 .permission = nfs_permission,
954 .getattr = nfs_getattr,
955 .setattr = nfs_setattr,
956 #ifdef CONFIG_NFS_V3_ACL
957 .listxattr = nfs3_listxattr,
958 .get_acl = nfs3_get_acl,
959 .set_acl = nfs3_set_acl,
963 const struct nfs_rpc_ops nfs_v3_clientops = {
964 .version = 3, /* protocol version */
965 .dentry_ops = &nfs_dentry_operations,
966 .dir_inode_ops = &nfs3_dir_inode_operations,
967 .file_inode_ops = &nfs3_file_inode_operations,
968 .file_ops = &nfs_file_operations,
969 .nlmclnt_ops = &nlmclnt_fl_close_lock_ops,
970 .getroot = nfs3_proc_get_root,
971 .submount = nfs_submount,
972 .try_mount = nfs_try_mount,
973 .getattr = nfs3_proc_getattr,
974 .setattr = nfs3_proc_setattr,
975 .lookup = nfs3_proc_lookup,
976 .access = nfs3_proc_access,
977 .readlink = nfs3_proc_readlink,
978 .create = nfs3_proc_create,
979 .remove = nfs3_proc_remove,
980 .unlink_setup = nfs3_proc_unlink_setup,
981 .unlink_rpc_prepare = nfs3_proc_unlink_rpc_prepare,
982 .unlink_done = nfs3_proc_unlink_done,
983 .rename_setup = nfs3_proc_rename_setup,
984 .rename_rpc_prepare = nfs3_proc_rename_rpc_prepare,
985 .rename_done = nfs3_proc_rename_done,
986 .link = nfs3_proc_link,
987 .symlink = nfs3_proc_symlink,
988 .mkdir = nfs3_proc_mkdir,
989 .rmdir = nfs3_proc_rmdir,
990 .readdir = nfs3_proc_readdir,
991 .mknod = nfs3_proc_mknod,
992 .statfs = nfs3_proc_statfs,
993 .fsinfo = nfs3_proc_fsinfo,
994 .pathconf = nfs3_proc_pathconf,
995 .decode_dirent = nfs3_decode_dirent,
996 .pgio_rpc_prepare = nfs3_proc_pgio_rpc_prepare,
997 .read_setup = nfs3_proc_read_setup,
998 .read_done = nfs3_read_done,
999 .write_setup = nfs3_proc_write_setup,
1000 .write_done = nfs3_write_done,
1001 .commit_setup = nfs3_proc_commit_setup,
1002 .commit_rpc_prepare = nfs3_proc_commit_rpc_prepare,
1003 .commit_done = nfs3_commit_done,
1004 .lock = nfs3_proc_lock,
1005 .clear_acl_cache = forget_all_cached_acls,
1006 .close_context = nfs_close_context,
1007 .have_delegation = nfs3_have_delegation,
1008 .return_delegation = nfs3_return_delegation,
1009 .alloc_client = nfs_alloc_client,
1010 .init_client = nfs_init_client,
1011 .free_client = nfs_free_client,
1012 .create_server = nfs3_create_server,
1013 .clone_server = nfs3_clone_server,