2 * linux/fs/9p/vfs_inode.c
4 * This file contains vfs inode ops for the 9P2000 protocol.
6 * Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com>
7 * Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2
11 * as published by the Free Software Foundation.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to:
20 * Free Software Foundation
21 * 51 Franklin Street, Fifth Floor
22 * Boston, MA 02111-1301 USA
26 #include <linux/module.h>
27 #include <linux/errno.h>
29 #include <linux/file.h>
30 #include <linux/pagemap.h>
31 #include <linux/stat.h>
32 #include <linux/string.h>
33 #include <linux/inet.h>
34 #include <linux/namei.h>
35 #include <linux/idr.h>
36 #include <linux/sched.h>
37 #include <linux/slab.h>
38 #include <linux/xattr.h>
39 #include <net/9p/9p.h>
40 #include <net/9p/client.h>
48 static const struct inode_operations v9fs_dir_inode_operations;
49 static const struct inode_operations v9fs_dir_inode_operations_dotu;
50 static const struct inode_operations v9fs_dir_inode_operations_dotl;
51 static const struct inode_operations v9fs_file_inode_operations;
52 static const struct inode_operations v9fs_file_inode_operations_dotl;
53 static const struct inode_operations v9fs_symlink_inode_operations;
54 static const struct inode_operations v9fs_symlink_inode_operations_dotl;
57 * unixmode2p9mode - convert unix mode bits to plan 9
58 * @v9ses: v9fs session information
59 * @mode: mode to convert
63 static int unixmode2p9mode(struct v9fs_session_info *v9ses, int mode)
69 if (v9fs_proto_dotu(v9ses)) {
72 if (v9ses->nodev == 0) {
76 res |= P9_DMNAMEDPIPE;
83 if ((mode & S_ISUID) == S_ISUID)
85 if ((mode & S_ISGID) == S_ISGID)
87 if ((mode & S_ISVTX) == S_ISVTX)
89 if ((mode & P9_DMLINK))
97 * p9mode2unixmode- convert plan9 mode bits to unix mode bits
98 * @v9ses: v9fs session information
99 * @mode: mode to convert
103 static int p9mode2unixmode(struct v9fs_session_info *v9ses, int mode)
109 if ((mode & P9_DMDIR) == P9_DMDIR)
111 else if ((mode & P9_DMSYMLINK) && (v9fs_proto_dotu(v9ses)))
113 else if ((mode & P9_DMSOCKET) && (v9fs_proto_dotu(v9ses))
114 && (v9ses->nodev == 0))
116 else if ((mode & P9_DMNAMEDPIPE) && (v9fs_proto_dotu(v9ses))
117 && (v9ses->nodev == 0))
119 else if ((mode & P9_DMDEVICE) && (v9fs_proto_dotu(v9ses))
120 && (v9ses->nodev == 0))
125 if (v9fs_proto_dotu(v9ses)) {
126 if ((mode & P9_DMSETUID) == P9_DMSETUID)
129 if ((mode & P9_DMSETGID) == P9_DMSETGID)
132 if ((mode & P9_DMSETVTX) == P9_DMSETVTX)
140 * v9fs_uflags2omode- convert posix open flags to plan 9 mode bits
141 * @uflags: flags to convert
142 * @extended: if .u extensions are active
145 int v9fs_uflags2omode(int uflags, int extended)
165 if (uflags & O_TRUNC)
172 if (uflags & O_APPEND)
180 * v9fs_blank_wstat - helper function to setup a 9P stat structure
181 * @wstat: structure to initialize
186 v9fs_blank_wstat(struct p9_wstat *wstat)
190 wstat->qid.type = ~0;
191 wstat->qid.version = ~0;
192 *((long long *)&wstat->qid.path) = ~0;
204 wstat->extension = NULL;
207 #ifdef CONFIG_9P_FSCACHE
209 * v9fs_alloc_inode - helper function to allocate an inode
210 * This callback is executed before setting up the inode so that we
211 * can associate a vcookie with each inode.
215 struct inode *v9fs_alloc_inode(struct super_block *sb)
217 struct v9fs_cookie *vcookie;
218 vcookie = (struct v9fs_cookie *)kmem_cache_alloc(vcookie_cache,
223 vcookie->fscache = NULL;
225 spin_lock_init(&vcookie->lock);
226 return &vcookie->inode;
230 * v9fs_destroy_inode - destroy an inode
234 void v9fs_destroy_inode(struct inode *inode)
236 kmem_cache_free(vcookie_cache, v9fs_inode2cookie(inode));
241 * v9fs_get_fsgid_for_create - Helper function to get the gid for creating a
242 * new file system object. This checks the S_ISGID to determine the owning
243 * group of the new file system object.
246 static gid_t v9fs_get_fsgid_for_create(struct inode *dir_inode)
248 BUG_ON(dir_inode == NULL);
250 if (dir_inode->i_mode & S_ISGID) {
251 /* set_gid bit is set.*/
252 return dir_inode->i_gid;
254 return current_fsgid();
258 * v9fs_dentry_from_dir_inode - helper function to get the dentry from
263 static struct dentry *v9fs_dentry_from_dir_inode(struct inode *inode)
265 struct dentry *dentry;
267 spin_lock(&dcache_lock);
268 /* Directory should have only one entry. */
269 BUG_ON(S_ISDIR(inode->i_mode) && !list_is_singular(&inode->i_dentry));
270 dentry = list_entry(inode->i_dentry.next, struct dentry, d_alias);
271 spin_unlock(&dcache_lock);
276 * v9fs_get_inode - helper function to setup an inode
278 * @mode: mode to setup inode with
282 struct inode *v9fs_get_inode(struct super_block *sb, int mode)
286 struct v9fs_session_info *v9ses = sb->s_fs_info;
288 P9_DPRINTK(P9_DEBUG_VFS, "super block: %p mode: %o\n", sb, mode);
290 inode = new_inode(sb);
292 P9_EPRINTK(KERN_WARNING, "Problem allocating inode\n");
293 return ERR_PTR(-ENOMEM);
296 inode_init_owner(inode, NULL, mode);
299 inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
300 inode->i_mapping->a_ops = &v9fs_addr_operations;
302 switch (mode & S_IFMT) {
307 if (v9fs_proto_dotl(v9ses)) {
308 inode->i_op = &v9fs_file_inode_operations_dotl;
309 inode->i_fop = &v9fs_file_operations_dotl;
310 } else if (v9fs_proto_dotu(v9ses)) {
311 inode->i_op = &v9fs_file_inode_operations;
312 inode->i_fop = &v9fs_file_operations;
314 P9_DPRINTK(P9_DEBUG_ERROR,
315 "special files without extended mode\n");
319 init_special_inode(inode, inode->i_mode, inode->i_rdev);
322 if (v9fs_proto_dotl(v9ses)) {
323 inode->i_op = &v9fs_file_inode_operations_dotl;
324 inode->i_fop = &v9fs_file_operations_dotl;
326 inode->i_op = &v9fs_file_inode_operations;
327 inode->i_fop = &v9fs_file_operations;
333 if (!v9fs_proto_dotu(v9ses) && !v9fs_proto_dotl(v9ses)) {
334 P9_DPRINTK(P9_DEBUG_ERROR, "extended modes used with "
335 "legacy protocol.\n");
340 if (v9fs_proto_dotl(v9ses))
341 inode->i_op = &v9fs_symlink_inode_operations_dotl;
343 inode->i_op = &v9fs_symlink_inode_operations;
348 if (v9fs_proto_dotl(v9ses))
349 inode->i_op = &v9fs_dir_inode_operations_dotl;
350 else if (v9fs_proto_dotu(v9ses))
351 inode->i_op = &v9fs_dir_inode_operations_dotu;
353 inode->i_op = &v9fs_dir_inode_operations;
355 if (v9fs_proto_dotl(v9ses))
356 inode->i_fop = &v9fs_dir_operations_dotl;
358 inode->i_fop = &v9fs_dir_operations;
362 P9_DPRINTK(P9_DEBUG_ERROR, "BAD mode 0x%x S_IFMT 0x%x\n",
363 mode, mode & S_IFMT);
376 static struct v9fs_fid*
377 v9fs_clone_walk(struct v9fs_session_info *v9ses, u32 fid, struct dentry *dentry)
381 struct v9fs_fid *ret;
382 struct v9fs_fcall *fcall;
384 nfid = v9fs_get_idpool(&v9ses->fidpool);
386 eprintk(KERN_WARNING, "no free fids available\n");
387 return ERR_PTR(-ENOSPC);
390 err = v9fs_t_walk(v9ses, fid, nfid, (char *) dentry->d_name.name,
394 if (fcall && fcall->id == RWALK)
397 PRINT_FCALL_ERROR("walk error", fcall);
398 v9fs_put_idpool(nfid, &v9ses->fidpool);
404 ret = v9fs_fid_create(v9ses, nfid);
410 err = v9fs_fid_insert(ret, dentry);
412 v9fs_fid_destroy(ret);
419 v9fs_t_clunk(v9ses, nfid);
429 * v9fs_clear_inode - release an inode
430 * @inode: inode to release
433 void v9fs_evict_inode(struct inode *inode)
435 truncate_inode_pages(inode->i_mapping, 0);
436 end_writeback(inode);
437 filemap_fdatawrite(inode->i_mapping);
439 #ifdef CONFIG_9P_FSCACHE
440 v9fs_cache_inode_put_cookie(inode);
444 static struct inode *
445 v9fs_inode(struct v9fs_session_info *v9ses, struct p9_fid *fid,
446 struct super_block *sb)
449 struct inode *ret = NULL;
452 st = p9_client_stat(fid);
456 umode = p9mode2unixmode(v9ses, st->mode);
457 ret = v9fs_get_inode(sb, umode);
463 v9fs_stat2inode(st, ret, sb);
464 ret->i_ino = v9fs_qid2ino(&st->qid);
466 #ifdef CONFIG_9P_FSCACHE
467 v9fs_vcookie_set_qid(ret, &st->qid);
468 v9fs_cache_inode_get_cookie(ret);
479 static struct inode *
480 v9fs_inode_dotl(struct v9fs_session_info *v9ses, struct p9_fid *fid,
481 struct super_block *sb)
483 struct inode *ret = NULL;
485 struct p9_stat_dotl *st;
487 st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
491 ret = v9fs_get_inode(sb, st->st_mode);
497 v9fs_stat2inode_dotl(st, ret);
498 ret->i_ino = v9fs_qid2ino(&st->qid);
499 #ifdef CONFIG_9P_FSCACHE
500 v9fs_vcookie_set_qid(ret, &st->qid);
501 v9fs_cache_inode_get_cookie(ret);
511 * v9fs_inode_from_fid - Helper routine to populate an inode by
512 * issuing a attribute request
513 * @v9ses: session information
514 * @fid: fid to issue attribute request for
515 * @sb: superblock on which to create inode
518 static inline struct inode *
519 v9fs_inode_from_fid(struct v9fs_session_info *v9ses, struct p9_fid *fid,
520 struct super_block *sb)
522 if (v9fs_proto_dotl(v9ses))
523 return v9fs_inode_dotl(v9ses, fid, sb);
525 return v9fs_inode(v9ses, fid, sb);
529 * v9fs_remove - helper function to remove files and directories
530 * @dir: directory inode that is being deleted
531 * @file: dentry that is being deleted
532 * @rmdir: removing a directory
536 static int v9fs_remove(struct inode *dir, struct dentry *file, int rmdir)
539 struct inode *file_inode;
540 struct p9_fid *v9fid;
542 P9_DPRINTK(P9_DEBUG_VFS, "inode: %p dentry: %p rmdir: %d\n", dir, file,
545 file_inode = file->d_inode;
546 v9fid = v9fs_fid_clone(file);
548 return PTR_ERR(v9fid);
550 retval = p9_client_remove(v9fid);
552 drop_nlink(file_inode);
557 v9fs_open_created(struct inode *inode, struct file *file)
564 * v9fs_create - Create a file
565 * @v9ses: session information
566 * @dir: directory that dentry is being created in
567 * @dentry: dentry that is being created
568 * @extension: 9p2000.u extension string to support devices, etc.
569 * @perm: create permissions
573 static struct p9_fid *
574 v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir,
575 struct dentry *dentry, char *extension, u32 perm, u8 mode)
579 struct p9_fid *dfid, *ofid, *fid;
582 P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name);
587 name = (char *) dentry->d_name.name;
588 dfid = v9fs_fid_lookup(dentry->d_parent);
591 P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
595 /* clone a fid to use for creation */
596 ofid = p9_client_walk(dfid, 0, NULL, 1);
599 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
603 err = p9_client_fcreate(ofid, name, perm, mode, extension);
605 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_fcreate failed %d\n", err);
609 /* now walk from the parent so we can get unopened fid */
610 fid = p9_client_walk(dfid, 1, &name, 1);
613 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
618 /* instantiate inode and assign the unopened fid to the dentry */
619 inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
621 err = PTR_ERR(inode);
622 P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n", err);
627 dentry->d_op = &v9fs_cached_dentry_operations;
629 dentry->d_op = &v9fs_dentry_operations;
631 d_instantiate(dentry, inode);
632 err = v9fs_fid_add(dentry, fid);
640 p9_client_clunk(ofid);
643 p9_client_clunk(fid);
649 * v9fs_vfs_create_dotl - VFS hook to create files for 9P2000.L protocol.
650 * @dir: directory inode that is being created
651 * @dentry: dentry that is being deleted
652 * @mode: create permissions
653 * @nd: path information
658 v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int mode,
659 struct nameidata *nd)
665 struct v9fs_session_info *v9ses;
666 struct p9_fid *fid = NULL;
667 struct p9_fid *dfid, *ofid;
672 v9ses = v9fs_inode2v9ses(dir);
673 if (nd && nd->flags & LOOKUP_OPEN)
674 flags = nd->intent.open.flags - 1;
678 name = (char *) dentry->d_name.name;
679 P9_DPRINTK(P9_DEBUG_VFS, "v9fs_vfs_create_dotl: name:%s flags:0x%x "
680 "mode:0x%x\n", name, flags, mode);
682 dfid = v9fs_fid_lookup(dentry->d_parent);
685 P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
689 /* clone a fid to use for creation */
690 ofid = p9_client_walk(dfid, 0, NULL, 1);
693 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
697 gid = v9fs_get_fsgid_for_create(dir);
698 err = p9_client_create_dotl(ofid, name, flags, mode, gid, &qid);
700 P9_DPRINTK(P9_DEBUG_VFS,
701 "p9_client_open_dotl failed in creat %d\n",
706 /* No need to populate the inode if we are not opening the file AND
707 * not in cached mode.
709 if (!v9ses->cache && !(nd && nd->flags & LOOKUP_OPEN)) {
710 /* Not in cached mode. No need to populate inode with stat */
711 dentry->d_op = &v9fs_dentry_operations;
712 p9_client_clunk(ofid);
713 d_instantiate(dentry, NULL);
717 /* Now walk from the parent so we can get an unopened fid. */
718 fid = p9_client_walk(dfid, 1, &name, 1);
721 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
726 /* instantiate inode and assign the unopened fid to dentry */
727 inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
729 err = PTR_ERR(inode);
730 P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n", err);
734 dentry->d_op = &v9fs_cached_dentry_operations;
736 dentry->d_op = &v9fs_dentry_operations;
737 d_instantiate(dentry, inode);
738 err = v9fs_fid_add(dentry, fid);
742 /* if we are opening a file, assign the open fid to the file */
743 if (nd && nd->flags & LOOKUP_OPEN) {
744 filp = lookup_instantiate_filp(nd, dentry, v9fs_open_created);
746 p9_client_clunk(ofid);
747 return PTR_ERR(filp);
749 filp->private_data = ofid;
751 p9_client_clunk(ofid);
757 p9_client_clunk(ofid);
759 p9_client_clunk(fid);
764 * v9fs_vfs_create - VFS hook to create files
765 * @dir: directory inode that is being created
766 * @dentry: dentry that is being deleted
767 * @mode: create permissions
768 * @nd: path information
773 v9fs_vfs_create(struct inode *dir, struct dentry *dentry, int mode,
774 struct nameidata *nd)
779 struct v9fs_session_info *v9ses;
785 v9ses = v9fs_inode2v9ses(dir);
786 perm = unixmode2p9mode(v9ses, mode);
787 if (nd && nd->flags & LOOKUP_OPEN)
788 flags = nd->intent.open.flags - 1;
792 fid = v9fs_create(v9ses, dir, dentry, NULL, perm,
793 v9fs_uflags2omode(flags,
794 v9fs_proto_dotu(v9ses)));
801 /* if we are opening a file, assign the open fid to the file */
802 if (nd && nd->flags & LOOKUP_OPEN) {
803 filp = lookup_instantiate_filp(nd, dentry, v9fs_open_created);
809 filp->private_data = fid;
811 p9_client_clunk(fid);
817 p9_client_clunk(fid);
823 * v9fs_vfs_mkdir - VFS mkdir hook to create a directory
824 * @dir: inode that is being unlinked
825 * @dentry: dentry that is being unlinked
826 * @mode: mode for new directory
830 static int v9fs_vfs_mkdir(struct inode *dir, struct dentry *dentry, int mode)
834 struct v9fs_session_info *v9ses;
837 P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name);
839 v9ses = v9fs_inode2v9ses(dir);
840 perm = unixmode2p9mode(v9ses, mode | S_IFDIR);
841 fid = v9fs_create(v9ses, dir, dentry, NULL, perm, P9_OREAD);
848 p9_client_clunk(fid);
855 * v9fs_vfs_mkdir_dotl - VFS mkdir hook to create a directory
856 * @dir: inode that is being unlinked
857 * @dentry: dentry that is being unlinked
858 * @mode: mode for new directory
862 static int v9fs_vfs_mkdir_dotl(struct inode *dir, struct dentry *dentry,
866 struct v9fs_session_info *v9ses;
867 struct p9_fid *fid = NULL, *dfid = NULL;
872 struct dentry *dir_dentry;
874 P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name);
876 v9ses = v9fs_inode2v9ses(dir);
879 if (dir->i_mode & S_ISGID)
881 dir_dentry = v9fs_dentry_from_dir_inode(dir);
882 dfid = v9fs_fid_lookup(dir_dentry);
885 P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
890 gid = v9fs_get_fsgid_for_create(dir);
892 name = (char *) dentry->d_name.name;
893 err = p9_client_mkdir_dotl(dfid, name, mode, gid, &qid);
897 /* instantiate inode and assign the unopened fid to the dentry */
898 if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
899 fid = p9_client_walk(dfid, 1, &name, 1);
902 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
908 inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
910 err = PTR_ERR(inode);
911 P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
915 dentry->d_op = &v9fs_cached_dentry_operations;
916 d_instantiate(dentry, inode);
917 err = v9fs_fid_add(dentry, fid);
924 p9_client_clunk(fid);
929 * v9fs_vfs_lookup - VFS lookup hook to "walk" to a new inode
930 * @dir: inode that is being walked from
931 * @dentry: dentry that is being walked to?
932 * @nameidata: path data
936 static struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
937 struct nameidata *nameidata)
939 struct super_block *sb;
940 struct v9fs_session_info *v9ses;
941 struct p9_fid *dfid, *fid;
946 P9_DPRINTK(P9_DEBUG_VFS, "dir: %p dentry: (%s) %p nameidata: %p\n",
947 dir, dentry->d_name.name, dentry, nameidata);
949 if (dentry->d_name.len > NAME_MAX)
950 return ERR_PTR(-ENAMETOOLONG);
953 v9ses = v9fs_inode2v9ses(dir);
954 /* We can walk d_parent because we hold the dir->i_mutex */
955 dfid = v9fs_fid_lookup(dentry->d_parent);
957 return ERR_CAST(dfid);
959 name = (char *) dentry->d_name.name;
960 fid = p9_client_walk(dfid, 1, &name, 1);
962 result = PTR_ERR(fid);
963 if (result == -ENOENT) {
968 return ERR_PTR(result);
971 inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
973 result = PTR_ERR(inode);
978 result = v9fs_fid_add(dentry, fid);
984 dentry->d_op = &v9fs_cached_dentry_operations;
986 dentry->d_op = &v9fs_dentry_operations;
988 d_add(dentry, inode);
992 p9_client_clunk(fid);
994 return ERR_PTR(result);
998 * v9fs_vfs_unlink - VFS unlink hook to delete an inode
999 * @i: inode that is being unlinked
1000 * @d: dentry that is being unlinked
1004 static int v9fs_vfs_unlink(struct inode *i, struct dentry *d)
1006 return v9fs_remove(i, d, 0);
1010 * v9fs_vfs_rmdir - VFS unlink hook to delete a directory
1011 * @i: inode that is being unlinked
1012 * @d: dentry that is being unlinked
1016 static int v9fs_vfs_rmdir(struct inode *i, struct dentry *d)
1018 return v9fs_remove(i, d, 1);
1022 * v9fs_vfs_rename - VFS hook to rename an inode
1023 * @old_dir: old dir inode
1024 * @old_dentry: old dentry
1025 * @new_dir: new dir inode
1026 * @new_dentry: new dentry
1031 v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
1032 struct inode *new_dir, struct dentry *new_dentry)
1034 struct inode *old_inode;
1035 struct v9fs_session_info *v9ses;
1036 struct p9_fid *oldfid;
1037 struct p9_fid *olddirfid;
1038 struct p9_fid *newdirfid;
1039 struct p9_wstat wstat;
1042 P9_DPRINTK(P9_DEBUG_VFS, "\n");
1044 old_inode = old_dentry->d_inode;
1045 v9ses = v9fs_inode2v9ses(old_inode);
1046 oldfid = v9fs_fid_lookup(old_dentry);
1048 return PTR_ERR(oldfid);
1050 olddirfid = v9fs_fid_clone(old_dentry->d_parent);
1051 if (IS_ERR(olddirfid)) {
1052 retval = PTR_ERR(olddirfid);
1056 newdirfid = v9fs_fid_clone(new_dentry->d_parent);
1057 if (IS_ERR(newdirfid)) {
1058 retval = PTR_ERR(newdirfid);
1062 down_write(&v9ses->rename_sem);
1063 if (v9fs_proto_dotl(v9ses)) {
1064 retval = p9_client_rename(oldfid, newdirfid,
1065 (char *) new_dentry->d_name.name);
1066 if (retval != -ENOSYS)
1069 if (old_dentry->d_parent != new_dentry->d_parent) {
1071 * 9P .u can only handle file rename in the same directory
1074 P9_DPRINTK(P9_DEBUG_ERROR,
1075 "old dir and new dir are different\n");
1079 v9fs_blank_wstat(&wstat);
1080 wstat.muid = v9ses->uname;
1081 wstat.name = (char *) new_dentry->d_name.name;
1082 retval = p9_client_wstat(oldfid, &wstat);
1086 /* successful rename */
1087 d_move(old_dentry, new_dentry);
1088 up_write(&v9ses->rename_sem);
1089 p9_client_clunk(newdirfid);
1092 p9_client_clunk(olddirfid);
1099 * v9fs_vfs_getattr - retrieve file metadata
1100 * @mnt: mount information
1101 * @dentry: file to get attributes on
1102 * @stat: metadata structure to populate
1107 v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
1111 struct v9fs_session_info *v9ses;
1113 struct p9_wstat *st;
1115 P9_DPRINTK(P9_DEBUG_VFS, "dentry: %p\n", dentry);
1117 v9ses = v9fs_inode2v9ses(dentry->d_inode);
1118 if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE)
1119 return simple_getattr(mnt, dentry, stat);
1121 fid = v9fs_fid_lookup(dentry);
1123 return PTR_ERR(fid);
1125 st = p9_client_stat(fid);
1129 v9fs_stat2inode(st, dentry->d_inode, dentry->d_inode->i_sb);
1130 generic_fillattr(dentry->d_inode, stat);
1138 v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry,
1142 struct v9fs_session_info *v9ses;
1144 struct p9_stat_dotl *st;
1146 P9_DPRINTK(P9_DEBUG_VFS, "dentry: %p\n", dentry);
1148 v9ses = v9fs_inode2v9ses(dentry->d_inode);
1149 if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE)
1150 return simple_getattr(mnt, dentry, stat);
1152 fid = v9fs_fid_lookup(dentry);
1154 return PTR_ERR(fid);
1156 /* Ask for all the fields in stat structure. Server will return
1157 * whatever it supports
1160 st = p9_client_getattr_dotl(fid, P9_STATS_ALL);
1164 v9fs_stat2inode_dotl(st, dentry->d_inode);
1165 generic_fillattr(dentry->d_inode, stat);
1166 /* Change block size to what the server returned */
1167 stat->blksize = st->st_blksize;
1174 * v9fs_vfs_setattr - set file metadata
1175 * @dentry: file whose metadata to set
1176 * @iattr: metadata assignment structure
1180 static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
1183 struct v9fs_session_info *v9ses;
1185 struct p9_wstat wstat;
1187 P9_DPRINTK(P9_DEBUG_VFS, "\n");
1189 v9ses = v9fs_inode2v9ses(dentry->d_inode);
1190 fid = v9fs_fid_lookup(dentry);
1192 return PTR_ERR(fid);
1194 v9fs_blank_wstat(&wstat);
1195 if (iattr->ia_valid & ATTR_MODE)
1196 wstat.mode = unixmode2p9mode(v9ses, iattr->ia_mode);
1198 if (iattr->ia_valid & ATTR_MTIME)
1199 wstat.mtime = iattr->ia_mtime.tv_sec;
1201 if (iattr->ia_valid & ATTR_ATIME)
1202 wstat.atime = iattr->ia_atime.tv_sec;
1204 if (iattr->ia_valid & ATTR_SIZE)
1205 wstat.length = iattr->ia_size;
1207 if (v9fs_proto_dotu(v9ses)) {
1208 if (iattr->ia_valid & ATTR_UID)
1209 wstat.n_uid = iattr->ia_uid;
1211 if (iattr->ia_valid & ATTR_GID)
1212 wstat.n_gid = iattr->ia_gid;
1215 retval = p9_client_wstat(fid, &wstat);
1219 if ((iattr->ia_valid & ATTR_SIZE) &&
1220 iattr->ia_size != i_size_read(dentry->d_inode)) {
1221 retval = vmtruncate(dentry->d_inode, iattr->ia_size);
1226 setattr_copy(dentry->d_inode, iattr);
1227 mark_inode_dirty(dentry->d_inode);
1232 * v9fs_vfs_setattr_dotl - set file metadata
1233 * @dentry: file whose metadata to set
1234 * @iattr: metadata assignment structure
1238 static int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
1241 struct v9fs_session_info *v9ses;
1243 struct p9_iattr_dotl p9attr;
1245 P9_DPRINTK(P9_DEBUG_VFS, "\n");
1247 retval = inode_change_ok(dentry->d_inode, iattr);
1251 p9attr.valid = iattr->ia_valid;
1252 p9attr.mode = iattr->ia_mode;
1253 p9attr.uid = iattr->ia_uid;
1254 p9attr.gid = iattr->ia_gid;
1255 p9attr.size = iattr->ia_size;
1256 p9attr.atime_sec = iattr->ia_atime.tv_sec;
1257 p9attr.atime_nsec = iattr->ia_atime.tv_nsec;
1258 p9attr.mtime_sec = iattr->ia_mtime.tv_sec;
1259 p9attr.mtime_nsec = iattr->ia_mtime.tv_nsec;
1262 v9ses = v9fs_inode2v9ses(dentry->d_inode);
1263 fid = v9fs_fid_lookup(dentry);
1265 return PTR_ERR(fid);
1267 retval = p9_client_setattr(fid, &p9attr);
1271 if ((iattr->ia_valid & ATTR_SIZE) &&
1272 iattr->ia_size != i_size_read(dentry->d_inode)) {
1273 retval = vmtruncate(dentry->d_inode, iattr->ia_size);
1278 setattr_copy(dentry->d_inode, iattr);
1279 mark_inode_dirty(dentry->d_inode);
1284 * v9fs_stat2inode - populate an inode structure with mistat info
1285 * @stat: Plan 9 metadata (mistat) structure
1286 * @inode: inode to populate
1287 * @sb: superblock of filesystem
1292 v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
1293 struct super_block *sb)
1297 unsigned int i_nlink;
1298 struct v9fs_session_info *v9ses = sb->s_fs_info;
1302 inode->i_atime.tv_sec = stat->atime;
1303 inode->i_mtime.tv_sec = stat->mtime;
1304 inode->i_ctime.tv_sec = stat->mtime;
1306 inode->i_uid = v9ses->dfltuid;
1307 inode->i_gid = v9ses->dfltgid;
1309 if (v9fs_proto_dotu(v9ses)) {
1310 inode->i_uid = stat->n_uid;
1311 inode->i_gid = stat->n_gid;
1313 if ((S_ISREG(inode->i_mode)) || (S_ISDIR(inode->i_mode))) {
1314 if (v9fs_proto_dotu(v9ses) && (stat->extension[0] != '\0')) {
1316 * Hadlink support got added later to
1317 * to the .u extension. So there can be
1318 * server out there that doesn't support
1319 * this even with .u extension. So check
1320 * for non NULL stat->extension
1322 strncpy(ext, stat->extension, sizeof(ext));
1323 /* HARDLINKCOUNT %u */
1324 sscanf(ext, "%13s %u", tag_name, &i_nlink);
1325 if (!strncmp(tag_name, "HARDLINKCOUNT", 13))
1326 inode->i_nlink = i_nlink;
1329 inode->i_mode = p9mode2unixmode(v9ses, stat->mode);
1330 if ((S_ISBLK(inode->i_mode)) || (S_ISCHR(inode->i_mode))) {
1335 strncpy(ext, stat->extension, sizeof(ext));
1336 sscanf(ext, "%c %u %u", &type, &major, &minor);
1339 inode->i_mode &= ~S_IFBLK;
1340 inode->i_mode |= S_IFCHR;
1345 P9_DPRINTK(P9_DEBUG_ERROR,
1346 "Unknown special type %c %s\n", type,
1349 inode->i_rdev = MKDEV(major, minor);
1350 init_special_inode(inode, inode->i_mode, inode->i_rdev);
1354 i_size_write(inode, stat->length);
1356 /* not real number of blocks, but 512 byte ones ... */
1357 inode->i_blocks = (i_size_read(inode) + 512 - 1) >> 9;
1361 * v9fs_stat2inode_dotl - populate an inode structure with stat info
1362 * @stat: stat structure
1363 * @inode: inode to populate
1364 * @sb: superblock of filesystem
1369 v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode)
1372 if ((stat->st_result_mask & P9_STATS_BASIC) == P9_STATS_BASIC) {
1373 inode->i_atime.tv_sec = stat->st_atime_sec;
1374 inode->i_atime.tv_nsec = stat->st_atime_nsec;
1375 inode->i_mtime.tv_sec = stat->st_mtime_sec;
1376 inode->i_mtime.tv_nsec = stat->st_mtime_nsec;
1377 inode->i_ctime.tv_sec = stat->st_ctime_sec;
1378 inode->i_ctime.tv_nsec = stat->st_ctime_nsec;
1379 inode->i_uid = stat->st_uid;
1380 inode->i_gid = stat->st_gid;
1381 inode->i_nlink = stat->st_nlink;
1382 inode->i_mode = stat->st_mode;
1383 inode->i_rdev = new_decode_dev(stat->st_rdev);
1385 if ((S_ISBLK(inode->i_mode)) || (S_ISCHR(inode->i_mode)))
1386 init_special_inode(inode, inode->i_mode, inode->i_rdev);
1388 i_size_write(inode, stat->st_size);
1389 inode->i_blocks = stat->st_blocks;
1391 if (stat->st_result_mask & P9_STATS_ATIME) {
1392 inode->i_atime.tv_sec = stat->st_atime_sec;
1393 inode->i_atime.tv_nsec = stat->st_atime_nsec;
1395 if (stat->st_result_mask & P9_STATS_MTIME) {
1396 inode->i_mtime.tv_sec = stat->st_mtime_sec;
1397 inode->i_mtime.tv_nsec = stat->st_mtime_nsec;
1399 if (stat->st_result_mask & P9_STATS_CTIME) {
1400 inode->i_ctime.tv_sec = stat->st_ctime_sec;
1401 inode->i_ctime.tv_nsec = stat->st_ctime_nsec;
1403 if (stat->st_result_mask & P9_STATS_UID)
1404 inode->i_uid = stat->st_uid;
1405 if (stat->st_result_mask & P9_STATS_GID)
1406 inode->i_gid = stat->st_gid;
1407 if (stat->st_result_mask & P9_STATS_NLINK)
1408 inode->i_nlink = stat->st_nlink;
1409 if (stat->st_result_mask & P9_STATS_MODE) {
1410 inode->i_mode = stat->st_mode;
1411 if ((S_ISBLK(inode->i_mode)) ||
1412 (S_ISCHR(inode->i_mode)))
1413 init_special_inode(inode, inode->i_mode,
1416 if (stat->st_result_mask & P9_STATS_RDEV)
1417 inode->i_rdev = new_decode_dev(stat->st_rdev);
1418 if (stat->st_result_mask & P9_STATS_SIZE)
1419 i_size_write(inode, stat->st_size);
1420 if (stat->st_result_mask & P9_STATS_BLOCKS)
1421 inode->i_blocks = stat->st_blocks;
1423 if (stat->st_result_mask & P9_STATS_GEN)
1424 inode->i_generation = stat->st_gen;
1426 /* Currently we don't support P9_STATS_BTIME and P9_STATS_DATA_VERSION
1427 * because the inode structure does not have fields for them.
1432 * v9fs_qid2ino - convert qid into inode number
1435 * BUG: potential for inode number collisions?
1438 ino_t v9fs_qid2ino(struct p9_qid *qid)
1440 u64 path = qid->path + 2;
1443 if (sizeof(ino_t) == sizeof(path))
1444 memcpy(&i, &path, sizeof(ino_t));
1446 i = (ino_t) (path ^ (path >> 32));
1452 * v9fs_readlink - read a symlink's location (internal version)
1453 * @dentry: dentry for symlink
1454 * @buffer: buffer to load symlink location into
1455 * @buflen: length of buffer
1459 static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen)
1463 struct v9fs_session_info *v9ses;
1465 struct p9_wstat *st;
1467 P9_DPRINTK(P9_DEBUG_VFS, " %s\n", dentry->d_name.name);
1469 v9ses = v9fs_inode2v9ses(dentry->d_inode);
1470 fid = v9fs_fid_lookup(dentry);
1472 return PTR_ERR(fid);
1474 if (!v9fs_proto_dotu(v9ses) && !v9fs_proto_dotl(v9ses))
1477 st = p9_client_stat(fid);
1481 if (!(st->mode & P9_DMSYMLINK)) {
1486 /* copy extension buffer into buffer */
1487 strncpy(buffer, st->extension, buflen);
1489 P9_DPRINTK(P9_DEBUG_VFS,
1490 "%s -> %s (%s)\n", dentry->d_name.name, st->extension, buffer);
1492 retval = strnlen(buffer, buflen);
1500 * v9fs_vfs_follow_link - follow a symlink path
1501 * @dentry: dentry for symlink
1506 static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd)
1509 char *link = __getname();
1511 P9_DPRINTK(P9_DEBUG_VFS, "%s n", dentry->d_name.name);
1514 link = ERR_PTR(-ENOMEM);
1516 len = v9fs_readlink(dentry, link, PATH_MAX);
1520 link = ERR_PTR(len);
1522 link[min(len, PATH_MAX-1)] = 0;
1524 nd_set_link(nd, link);
1530 * v9fs_vfs_put_link - release a symlink path
1531 * @dentry: dentry for symlink
1538 v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
1540 char *s = nd_get_link(nd);
1542 P9_DPRINTK(P9_DEBUG_VFS, " %s %s\n", dentry->d_name.name,
1543 IS_ERR(s) ? "<error>" : s);
1549 * v9fs_vfs_mkspecial - create a special file
1550 * @dir: inode to create special file in
1551 * @dentry: dentry to create
1552 * @mode: mode to create special file
1553 * @extension: 9p2000.u format extension string representing special file
1557 static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,
1558 int mode, const char *extension)
1561 struct v9fs_session_info *v9ses;
1564 v9ses = v9fs_inode2v9ses(dir);
1565 if (!v9fs_proto_dotu(v9ses)) {
1566 P9_DPRINTK(P9_DEBUG_ERROR, "not extended\n");
1570 perm = unixmode2p9mode(v9ses, mode);
1571 fid = v9fs_create(v9ses, dir, dentry, (char *) extension, perm,
1574 return PTR_ERR(fid);
1576 p9_client_clunk(fid);
1581 * v9fs_vfs_symlink_dotl - helper function to create symlinks
1582 * @dir: directory inode containing symlink
1583 * @dentry: dentry for symlink
1584 * @symname: symlink data
1586 * See Also: 9P2000.L RFC for more information
1591 v9fs_vfs_symlink_dotl(struct inode *dir, struct dentry *dentry,
1592 const char *symname)
1594 struct v9fs_session_info *v9ses;
1595 struct p9_fid *dfid;
1596 struct p9_fid *fid = NULL;
1597 struct inode *inode;
1603 name = (char *) dentry->d_name.name;
1604 P9_DPRINTK(P9_DEBUG_VFS, "v9fs_vfs_symlink_dotl : %lu,%s,%s\n",
1605 dir->i_ino, name, symname);
1606 v9ses = v9fs_inode2v9ses(dir);
1608 dfid = v9fs_fid_lookup(dentry->d_parent);
1610 err = PTR_ERR(dfid);
1611 P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
1615 gid = v9fs_get_fsgid_for_create(dir);
1617 /* Server doesn't alter fid on TSYMLINK. Hence no need to clone it. */
1618 err = p9_client_symlink(dfid, name, (char *)symname, gid, &qid);
1621 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_symlink failed %d\n", err);
1626 /* Now walk from the parent so we can get an unopened fid. */
1627 fid = p9_client_walk(dfid, 1, &name, 1);
1630 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
1636 /* instantiate inode and assign the unopened fid to dentry */
1637 inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
1638 if (IS_ERR(inode)) {
1639 err = PTR_ERR(inode);
1640 P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
1644 dentry->d_op = &v9fs_cached_dentry_operations;
1645 d_instantiate(dentry, inode);
1646 err = v9fs_fid_add(dentry, fid);
1651 /* Not in cached mode. No need to populate inode with stat */
1652 inode = v9fs_get_inode(dir->i_sb, S_IFLNK);
1653 if (IS_ERR(inode)) {
1654 err = PTR_ERR(inode);
1657 dentry->d_op = &v9fs_dentry_operations;
1658 d_instantiate(dentry, inode);
1663 p9_client_clunk(fid);
1669 * v9fs_vfs_symlink - helper function to create symlinks
1670 * @dir: directory inode containing symlink
1671 * @dentry: dentry for symlink
1672 * @symname: symlink data
1674 * See Also: 9P2000.u RFC for more information
1679 v9fs_vfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
1681 P9_DPRINTK(P9_DEBUG_VFS, " %lu,%s,%s\n", dir->i_ino,
1682 dentry->d_name.name, symname);
1684 return v9fs_vfs_mkspecial(dir, dentry, S_IFLNK, symname);
1688 * v9fs_vfs_link - create a hardlink
1689 * @old_dentry: dentry for file to link to
1690 * @dir: inode destination for new link
1691 * @dentry: dentry for link
1696 v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir,
1697 struct dentry *dentry)
1700 struct p9_fid *oldfid;
1703 P9_DPRINTK(P9_DEBUG_VFS,
1704 " %lu,%s,%s\n", dir->i_ino, dentry->d_name.name,
1705 old_dentry->d_name.name);
1707 oldfid = v9fs_fid_clone(old_dentry);
1709 return PTR_ERR(oldfid);
1712 if (unlikely(!name)) {
1717 sprintf(name, "%d\n", oldfid->fid);
1718 retval = v9fs_vfs_mkspecial(dir, dentry, P9_DMLINK, name);
1722 p9_client_clunk(oldfid);
1727 * v9fs_vfs_link_dotl - create a hardlink for dotl
1728 * @old_dentry: dentry for file to link to
1729 * @dir: inode destination for new link
1730 * @dentry: dentry for link
1735 v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
1736 struct dentry *dentry)
1739 struct p9_fid *dfid, *oldfid;
1741 struct v9fs_session_info *v9ses;
1742 struct dentry *dir_dentry;
1744 P9_DPRINTK(P9_DEBUG_VFS, "dir ino: %lu, old_name: %s, new_name: %s\n",
1745 dir->i_ino, old_dentry->d_name.name,
1746 dentry->d_name.name);
1748 v9ses = v9fs_inode2v9ses(dir);
1749 dir_dentry = v9fs_dentry_from_dir_inode(dir);
1750 dfid = v9fs_fid_lookup(dir_dentry);
1752 return PTR_ERR(dfid);
1754 oldfid = v9fs_fid_lookup(old_dentry);
1756 return PTR_ERR(oldfid);
1758 name = (char *) dentry->d_name.name;
1760 err = p9_client_link(dfid, oldfid, (char *)dentry->d_name.name);
1763 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_link failed %d\n", err);
1767 if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
1768 /* Get the latest stat info from server. */
1770 struct p9_stat_dotl *st;
1772 fid = v9fs_fid_lookup(old_dentry);
1774 return PTR_ERR(fid);
1776 st = p9_client_getattr_dotl(fid, P9_STATS_BASIC);
1780 v9fs_stat2inode_dotl(st, old_dentry->d_inode);
1784 /* Caching disabled. No need to get upto date stat info.
1785 * This dentry will be released immediately. So, just hold the
1788 ihold(old_dentry->d_inode);
1791 dentry->d_op = old_dentry->d_op;
1792 d_instantiate(dentry, old_dentry->d_inode);
1798 * v9fs_vfs_mknod - create a special file
1799 * @dir: inode destination for new link
1800 * @dentry: dentry for file
1801 * @mode: mode for creation
1802 * @rdev: device associated with special file
1807 v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t rdev)
1812 P9_DPRINTK(P9_DEBUG_VFS,
1813 " %lu,%s mode: %x MAJOR: %u MINOR: %u\n", dir->i_ino,
1814 dentry->d_name.name, mode, MAJOR(rdev), MINOR(rdev));
1816 if (!new_valid_dev(rdev))
1822 /* build extension */
1824 sprintf(name, "b %u %u", MAJOR(rdev), MINOR(rdev));
1825 else if (S_ISCHR(mode))
1826 sprintf(name, "c %u %u", MAJOR(rdev), MINOR(rdev));
1827 else if (S_ISFIFO(mode))
1829 else if (S_ISSOCK(mode))
1836 retval = v9fs_vfs_mkspecial(dir, dentry, mode, name);
1843 * v9fs_vfs_mknod_dotl - create a special file
1844 * @dir: inode destination for new link
1845 * @dentry: dentry for file
1846 * @mode: mode for creation
1847 * @rdev: device associated with special file
1851 v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, int mode,
1856 struct v9fs_session_info *v9ses;
1857 struct p9_fid *fid = NULL, *dfid = NULL;
1858 struct inode *inode;
1861 struct dentry *dir_dentry;
1863 P9_DPRINTK(P9_DEBUG_VFS,
1864 " %lu,%s mode: %x MAJOR: %u MINOR: %u\n", dir->i_ino,
1865 dentry->d_name.name, mode, MAJOR(rdev), MINOR(rdev));
1867 if (!new_valid_dev(rdev))
1870 v9ses = v9fs_inode2v9ses(dir);
1871 dir_dentry = v9fs_dentry_from_dir_inode(dir);
1872 dfid = v9fs_fid_lookup(dir_dentry);
1874 err = PTR_ERR(dfid);
1875 P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
1880 gid = v9fs_get_fsgid_for_create(dir);
1882 name = (char *) dentry->d_name.name;
1884 err = p9_client_mknod_dotl(dfid, name, mode, rdev, gid, &qid);
1888 /* instantiate inode and assign the unopened fid to the dentry */
1889 if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
1890 fid = p9_client_walk(dfid, 1, &name, 1);
1893 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
1899 inode = v9fs_inode_from_fid(v9ses, fid, dir->i_sb);
1900 if (IS_ERR(inode)) {
1901 err = PTR_ERR(inode);
1902 P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
1906 dentry->d_op = &v9fs_cached_dentry_operations;
1907 d_instantiate(dentry, inode);
1908 err = v9fs_fid_add(dentry, fid);
1914 * Not in cached mode. No need to populate inode with stat.
1915 * socket syscall returns a fd, so we need instantiate
1917 inode = v9fs_get_inode(dir->i_sb, mode);
1918 if (IS_ERR(inode)) {
1919 err = PTR_ERR(inode);
1922 dentry->d_op = &v9fs_dentry_operations;
1923 d_instantiate(dentry, inode);
1928 p9_client_clunk(fid);
1932 static const struct inode_operations v9fs_dir_inode_operations_dotu = {
1933 .create = v9fs_vfs_create,
1934 .lookup = v9fs_vfs_lookup,
1935 .symlink = v9fs_vfs_symlink,
1936 .link = v9fs_vfs_link,
1937 .unlink = v9fs_vfs_unlink,
1938 .mkdir = v9fs_vfs_mkdir,
1939 .rmdir = v9fs_vfs_rmdir,
1940 .mknod = v9fs_vfs_mknod,
1941 .rename = v9fs_vfs_rename,
1942 .getattr = v9fs_vfs_getattr,
1943 .setattr = v9fs_vfs_setattr,
1946 static const struct inode_operations v9fs_dir_inode_operations_dotl = {
1947 .create = v9fs_vfs_create_dotl,
1948 .lookup = v9fs_vfs_lookup,
1949 .link = v9fs_vfs_link_dotl,
1950 .symlink = v9fs_vfs_symlink_dotl,
1951 .unlink = v9fs_vfs_unlink,
1952 .mkdir = v9fs_vfs_mkdir_dotl,
1953 .rmdir = v9fs_vfs_rmdir,
1954 .mknod = v9fs_vfs_mknod_dotl,
1955 .rename = v9fs_vfs_rename,
1956 .getattr = v9fs_vfs_getattr_dotl,
1957 .setattr = v9fs_vfs_setattr_dotl,
1958 .setxattr = generic_setxattr,
1959 .getxattr = generic_getxattr,
1960 .removexattr = generic_removexattr,
1961 .listxattr = v9fs_listxattr,
1965 static const struct inode_operations v9fs_dir_inode_operations = {
1966 .create = v9fs_vfs_create,
1967 .lookup = v9fs_vfs_lookup,
1968 .unlink = v9fs_vfs_unlink,
1969 .mkdir = v9fs_vfs_mkdir,
1970 .rmdir = v9fs_vfs_rmdir,
1971 .mknod = v9fs_vfs_mknod,
1972 .rename = v9fs_vfs_rename,
1973 .getattr = v9fs_vfs_getattr,
1974 .setattr = v9fs_vfs_setattr,
1977 static const struct inode_operations v9fs_file_inode_operations = {
1978 .getattr = v9fs_vfs_getattr,
1979 .setattr = v9fs_vfs_setattr,
1982 static const struct inode_operations v9fs_file_inode_operations_dotl = {
1983 .getattr = v9fs_vfs_getattr_dotl,
1984 .setattr = v9fs_vfs_setattr_dotl,
1985 .setxattr = generic_setxattr,
1986 .getxattr = generic_getxattr,
1987 .removexattr = generic_removexattr,
1988 .listxattr = v9fs_listxattr,
1991 static const struct inode_operations v9fs_symlink_inode_operations = {
1992 .readlink = generic_readlink,
1993 .follow_link = v9fs_vfs_follow_link,
1994 .put_link = v9fs_vfs_put_link,
1995 .getattr = v9fs_vfs_getattr,
1996 .setattr = v9fs_vfs_setattr,
1999 static const struct inode_operations v9fs_symlink_inode_operations_dotl = {
2000 .readlink = generic_readlink,
2001 .follow_link = v9fs_vfs_follow_link,
2002 .put_link = v9fs_vfs_put_link,
2003 .getattr = v9fs_vfs_getattr_dotl,
2004 .setattr = v9fs_vfs_setattr_dotl,
2005 .setxattr = generic_setxattr,
2006 .getxattr = generic_getxattr,
2007 .removexattr = generic_removexattr,
2008 .listxattr = v9fs_listxattr,