2 * linux/fs/9p/vfs_inode_dotl.c
4 * This file contains vfs inode ops for the 9P2000.L 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 <linux/posix_acl.h>
40 #include <net/9p/9p.h>
41 #include <net/9p/client.h>
51 v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, int omode,
55 * v9fs_get_fsgid_for_create - Helper function to get the gid for creating a
56 * new file system object. This checks the S_ISGID to determine the owning
57 * group of the new file system object.
60 static gid_t v9fs_get_fsgid_for_create(struct inode *dir_inode)
62 BUG_ON(dir_inode == NULL);
64 if (dir_inode->i_mode & S_ISGID) {
65 /* set_gid bit is set.*/
66 return dir_inode->i_gid;
68 return current_fsgid();
72 * v9fs_dentry_from_dir_inode - helper function to get the dentry from
77 static struct dentry *v9fs_dentry_from_dir_inode(struct inode *inode)
79 struct dentry *dentry;
81 spin_lock(&inode->i_lock);
82 /* Directory should have only one entry. */
83 BUG_ON(S_ISDIR(inode->i_mode) && !list_is_singular(&inode->i_dentry));
84 dentry = list_entry(inode->i_dentry.next, struct dentry, d_alias);
85 spin_unlock(&inode->i_lock);
89 static int v9fs_test_inode_dotl(struct inode *inode, void *data)
91 struct v9fs_inode *v9inode = V9FS_I(inode);
92 struct p9_stat_dotl *st = (struct p9_stat_dotl *)data;
94 /* don't match inode of different type */
95 if ((inode->i_mode & S_IFMT) != (st->st_mode & S_IFMT))
98 if (inode->i_generation != st->st_gen)
101 /* compare qid details */
102 if (memcmp(&v9inode->qid.version,
103 &st->qid.version, sizeof(v9inode->qid.version)))
106 if (v9inode->qid.type != st->qid.type)
111 /* Always get a new inode */
112 static int v9fs_test_new_inode_dotl(struct inode *inode, void *data)
117 static int v9fs_set_inode_dotl(struct inode *inode, void *data)
119 struct v9fs_inode *v9inode = V9FS_I(inode);
120 struct p9_stat_dotl *st = (struct p9_stat_dotl *)data;
122 memcpy(&v9inode->qid, &st->qid, sizeof(st->qid));
123 inode->i_generation = st->st_gen;
127 static struct inode *v9fs_qid_iget_dotl(struct super_block *sb,
130 struct p9_stat_dotl *st,
136 struct v9fs_session_info *v9ses = sb->s_fs_info;
137 int (*test)(struct inode *, void *);
140 test = v9fs_test_new_inode_dotl;
142 test = v9fs_test_inode_dotl;
144 i_ino = v9fs_qid2ino(qid);
145 inode = iget5_locked(sb, i_ino, test, v9fs_set_inode_dotl, st);
147 return ERR_PTR(-ENOMEM);
148 if (!(inode->i_state & I_NEW))
151 * initialize the inode with the stat info
152 * FIXME!! we may need support for stale inodes
155 inode->i_ino = i_ino;
156 retval = v9fs_init_inode(v9ses, inode,
157 st->st_mode, new_decode_dev(st->st_rdev));
161 v9fs_stat2inode_dotl(st, inode);
162 #ifdef CONFIG_9P_FSCACHE
163 v9fs_cache_inode_get_cookie(inode);
165 retval = v9fs_get_acl(inode, fid);
169 unlock_new_inode(inode);
172 unlock_new_inode(inode);
174 return ERR_PTR(retval);
179 v9fs_inode_from_fid_dotl(struct v9fs_session_info *v9ses, struct p9_fid *fid,
180 struct super_block *sb, int new)
182 struct p9_stat_dotl *st;
183 struct inode *inode = NULL;
185 st = p9_client_getattr_dotl(fid, P9_STATS_BASIC | P9_STATS_GEN);
189 inode = v9fs_qid_iget_dotl(sb, &st->qid, fid, st, new);
195 * v9fs_vfs_create_dotl - VFS hook to create files for 9P2000.L protocol.
196 * @dir: directory inode that is being created
197 * @dentry: dentry that is being deleted
198 * @mode: create permissions
199 * @nd: path information
204 v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, int omode,
205 struct nameidata *nd)
215 struct p9_fid *fid = NULL;
216 struct v9fs_inode *v9inode;
217 struct p9_fid *dfid, *ofid, *inode_fid;
218 struct v9fs_session_info *v9ses;
219 struct posix_acl *pacl = NULL, *dacl = NULL;
221 v9ses = v9fs_inode2v9ses(dir);
223 flags = nd->intent.open.flags;
226 * create call without LOOKUP_OPEN is due
227 * to mknod of regular files. So use mknod
230 return v9fs_vfs_mknod_dotl(dir, dentry, omode, 0);
233 name = (char *) dentry->d_name.name;
234 P9_DPRINTK(P9_DEBUG_VFS, "v9fs_vfs_create_dotl: name:%s flags:0x%x "
235 "mode:0x%x\n", name, flags, omode);
237 dfid = v9fs_fid_lookup(dentry->d_parent);
240 P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
244 /* clone a fid to use for creation */
245 ofid = p9_client_walk(dfid, 0, NULL, 1);
248 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
252 gid = v9fs_get_fsgid_for_create(dir);
255 /* Update mode based on ACL value */
256 err = v9fs_acl_mode(dir, &mode, &dacl, &pacl);
258 P9_DPRINTK(P9_DEBUG_VFS,
259 "Failed to get acl values in creat %d\n", err);
262 err = p9_client_create_dotl(ofid, name, flags, mode, gid, &qid);
264 P9_DPRINTK(P9_DEBUG_VFS,
265 "p9_client_open_dotl failed in creat %d\n",
269 v9fs_invalidate_inode_attr(dir);
271 /* instantiate inode and assign the unopened fid to the dentry */
272 fid = p9_client_walk(dfid, 1, &name, 1);
275 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
279 inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
281 err = PTR_ERR(inode);
282 P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n", err);
285 err = v9fs_fid_add(dentry, fid);
288 d_instantiate(dentry, inode);
290 /* Now set the ACL based on the default value */
291 v9fs_set_create_acl(dentry, &dacl, &pacl);
293 v9inode = V9FS_I(inode);
294 mutex_lock(&v9inode->v_mutex);
295 if (v9ses->cache && !v9inode->writeback_fid &&
296 ((flags & O_ACCMODE) != O_RDONLY)) {
298 * clone a fid and add it to writeback_fid
299 * we do it during open time instead of
300 * page dirty time via write_begin/page_mkwrite
301 * because we want write after unlink usecase
304 inode_fid = v9fs_writeback_fid(dentry);
305 if (IS_ERR(inode_fid)) {
306 err = PTR_ERR(inode_fid);
307 mutex_unlock(&v9inode->v_mutex);
308 goto err_clunk_old_fid;
310 v9inode->writeback_fid = (void *) inode_fid;
312 mutex_unlock(&v9inode->v_mutex);
313 /* Since we are opening a file, assign the open fid to the file */
314 filp = lookup_instantiate_filp(nd, dentry, generic_file_open);
317 goto err_clunk_old_fid;
319 filp->private_data = ofid;
320 #ifdef CONFIG_9P_FSCACHE
322 v9fs_cache_inode_set_cookie(inode, filp);
328 p9_client_clunk(fid);
331 p9_client_clunk(ofid);
332 v9fs_set_create_acl(NULL, &dacl, &pacl);
337 * v9fs_vfs_mkdir_dotl - VFS mkdir hook to create a directory
338 * @dir: inode that is being unlinked
339 * @dentry: dentry that is being unlinked
340 * @mode: mode for new directory
344 static int v9fs_vfs_mkdir_dotl(struct inode *dir,
345 struct dentry *dentry, int omode)
348 struct v9fs_session_info *v9ses;
349 struct p9_fid *fid = NULL, *dfid = NULL;
355 struct dentry *dir_dentry;
356 struct posix_acl *dacl = NULL, *pacl = NULL;
358 P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name);
360 v9ses = v9fs_inode2v9ses(dir);
363 if (dir->i_mode & S_ISGID)
366 dir_dentry = v9fs_dentry_from_dir_inode(dir);
367 dfid = v9fs_fid_lookup(dir_dentry);
370 P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
375 gid = v9fs_get_fsgid_for_create(dir);
377 /* Update mode based on ACL value */
378 err = v9fs_acl_mode(dir, &mode, &dacl, &pacl);
380 P9_DPRINTK(P9_DEBUG_VFS,
381 "Failed to get acl values in mkdir %d\n", err);
384 name = (char *) dentry->d_name.name;
385 err = p9_client_mkdir_dotl(dfid, name, mode, gid, &qid);
389 /* instantiate inode and assign the unopened fid to the dentry */
390 if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
391 fid = p9_client_walk(dfid, 1, &name, 1);
394 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
400 inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
402 err = PTR_ERR(inode);
403 P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
407 err = v9fs_fid_add(dentry, fid);
410 d_instantiate(dentry, inode);
414 * Not in cached mode. No need to populate
415 * inode with stat. We need to get an inode
416 * so that we can set the acl with dentry
418 inode = v9fs_get_inode(dir->i_sb, mode, 0);
420 err = PTR_ERR(inode);
423 d_instantiate(dentry, inode);
425 /* Now set the ACL based on the default value */
426 v9fs_set_create_acl(dentry, &dacl, &pacl);
428 v9fs_invalidate_inode_attr(dir);
431 p9_client_clunk(fid);
432 v9fs_set_create_acl(NULL, &dacl, &pacl);
437 v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry,
441 struct v9fs_session_info *v9ses;
443 struct p9_stat_dotl *st;
445 P9_DPRINTK(P9_DEBUG_VFS, "dentry: %p\n", dentry);
447 v9ses = v9fs_dentry2v9ses(dentry);
448 if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
449 generic_fillattr(dentry->d_inode, stat);
452 fid = v9fs_fid_lookup(dentry);
456 /* Ask for all the fields in stat structure. Server will return
457 * whatever it supports
460 st = p9_client_getattr_dotl(fid, P9_STATS_ALL);
464 v9fs_stat2inode_dotl(st, dentry->d_inode);
465 generic_fillattr(dentry->d_inode, stat);
466 /* Change block size to what the server returned */
467 stat->blksize = st->st_blksize;
474 * v9fs_vfs_setattr_dotl - set file metadata
475 * @dentry: file whose metadata to set
476 * @iattr: metadata assignment structure
480 int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
483 struct v9fs_session_info *v9ses;
485 struct p9_iattr_dotl p9attr;
487 P9_DPRINTK(P9_DEBUG_VFS, "\n");
489 retval = inode_change_ok(dentry->d_inode, iattr);
493 p9attr.valid = iattr->ia_valid;
494 p9attr.mode = iattr->ia_mode;
495 p9attr.uid = iattr->ia_uid;
496 p9attr.gid = iattr->ia_gid;
497 p9attr.size = iattr->ia_size;
498 p9attr.atime_sec = iattr->ia_atime.tv_sec;
499 p9attr.atime_nsec = iattr->ia_atime.tv_nsec;
500 p9attr.mtime_sec = iattr->ia_mtime.tv_sec;
501 p9attr.mtime_nsec = iattr->ia_mtime.tv_nsec;
504 v9ses = v9fs_dentry2v9ses(dentry);
505 fid = v9fs_fid_lookup(dentry);
509 /* Write all dirty data */
510 if (S_ISREG(dentry->d_inode->i_mode))
511 filemap_write_and_wait(dentry->d_inode->i_mapping);
513 retval = p9_client_setattr(fid, &p9attr);
517 if ((iattr->ia_valid & ATTR_SIZE) &&
518 iattr->ia_size != i_size_read(dentry->d_inode))
519 truncate_setsize(dentry->d_inode, iattr->ia_size);
521 v9fs_invalidate_inode_attr(dentry->d_inode);
522 setattr_copy(dentry->d_inode, iattr);
523 mark_inode_dirty(dentry->d_inode);
524 if (iattr->ia_valid & ATTR_MODE) {
525 /* We also want to update ACL when we update mode bits */
526 retval = v9fs_acl_chmod(dentry);
534 * v9fs_stat2inode_dotl - populate an inode structure with stat info
535 * @stat: stat structure
536 * @inode: inode to populate
537 * @sb: superblock of filesystem
542 v9fs_stat2inode_dotl(struct p9_stat_dotl *stat, struct inode *inode)
545 struct v9fs_inode *v9inode = V9FS_I(inode);
547 if ((stat->st_result_mask & P9_STATS_BASIC) == P9_STATS_BASIC) {
548 inode->i_atime.tv_sec = stat->st_atime_sec;
549 inode->i_atime.tv_nsec = stat->st_atime_nsec;
550 inode->i_mtime.tv_sec = stat->st_mtime_sec;
551 inode->i_mtime.tv_nsec = stat->st_mtime_nsec;
552 inode->i_ctime.tv_sec = stat->st_ctime_sec;
553 inode->i_ctime.tv_nsec = stat->st_ctime_nsec;
554 inode->i_uid = stat->st_uid;
555 inode->i_gid = stat->st_gid;
556 inode->i_nlink = stat->st_nlink;
558 mode = stat->st_mode & S_IALLUGO;
559 mode |= inode->i_mode & ~S_IALLUGO;
560 inode->i_mode = mode;
562 i_size_write(inode, stat->st_size);
563 inode->i_blocks = stat->st_blocks;
565 if (stat->st_result_mask & P9_STATS_ATIME) {
566 inode->i_atime.tv_sec = stat->st_atime_sec;
567 inode->i_atime.tv_nsec = stat->st_atime_nsec;
569 if (stat->st_result_mask & P9_STATS_MTIME) {
570 inode->i_mtime.tv_sec = stat->st_mtime_sec;
571 inode->i_mtime.tv_nsec = stat->st_mtime_nsec;
573 if (stat->st_result_mask & P9_STATS_CTIME) {
574 inode->i_ctime.tv_sec = stat->st_ctime_sec;
575 inode->i_ctime.tv_nsec = stat->st_ctime_nsec;
577 if (stat->st_result_mask & P9_STATS_UID)
578 inode->i_uid = stat->st_uid;
579 if (stat->st_result_mask & P9_STATS_GID)
580 inode->i_gid = stat->st_gid;
581 if (stat->st_result_mask & P9_STATS_NLINK)
582 inode->i_nlink = stat->st_nlink;
583 if (stat->st_result_mask & P9_STATS_MODE) {
584 inode->i_mode = stat->st_mode;
585 if ((S_ISBLK(inode->i_mode)) ||
586 (S_ISCHR(inode->i_mode)))
587 init_special_inode(inode, inode->i_mode,
590 if (stat->st_result_mask & P9_STATS_RDEV)
591 inode->i_rdev = new_decode_dev(stat->st_rdev);
592 if (stat->st_result_mask & P9_STATS_SIZE)
593 i_size_write(inode, stat->st_size);
594 if (stat->st_result_mask & P9_STATS_BLOCKS)
595 inode->i_blocks = stat->st_blocks;
597 if (stat->st_result_mask & P9_STATS_GEN)
598 inode->i_generation = stat->st_gen;
600 /* Currently we don't support P9_STATS_BTIME and P9_STATS_DATA_VERSION
601 * because the inode structure does not have fields for them.
603 v9inode->cache_validity &= ~V9FS_INO_INVALID_ATTR;
607 v9fs_vfs_symlink_dotl(struct inode *dir, struct dentry *dentry,
616 struct p9_fid *fid = NULL;
617 struct v9fs_session_info *v9ses;
619 name = (char *) dentry->d_name.name;
620 P9_DPRINTK(P9_DEBUG_VFS, "v9fs_vfs_symlink_dotl : %lu,%s,%s\n",
621 dir->i_ino, name, symname);
622 v9ses = v9fs_inode2v9ses(dir);
624 dfid = v9fs_fid_lookup(dentry->d_parent);
627 P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
631 gid = v9fs_get_fsgid_for_create(dir);
633 /* Server doesn't alter fid on TSYMLINK. Hence no need to clone it. */
634 err = p9_client_symlink(dfid, name, (char *)symname, gid, &qid);
637 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_symlink failed %d\n", err);
641 v9fs_invalidate_inode_attr(dir);
643 /* Now walk from the parent so we can get an unopened fid. */
644 fid = p9_client_walk(dfid, 1, &name, 1);
647 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
653 /* instantiate inode and assign the unopened fid to dentry */
654 inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
656 err = PTR_ERR(inode);
657 P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
661 err = v9fs_fid_add(dentry, fid);
664 d_instantiate(dentry, inode);
667 /* Not in cached mode. No need to populate inode with stat */
668 inode = v9fs_get_inode(dir->i_sb, S_IFLNK, 0);
670 err = PTR_ERR(inode);
673 d_instantiate(dentry, inode);
678 p9_client_clunk(fid);
684 * v9fs_vfs_link_dotl - create a hardlink for dotl
685 * @old_dentry: dentry for file to link to
686 * @dir: inode destination for new link
687 * @dentry: dentry for link
692 v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
693 struct dentry *dentry)
697 struct dentry *dir_dentry;
698 struct p9_fid *dfid, *oldfid;
699 struct v9fs_session_info *v9ses;
701 P9_DPRINTK(P9_DEBUG_VFS, "dir ino: %lu, old_name: %s, new_name: %s\n",
702 dir->i_ino, old_dentry->d_name.name,
703 dentry->d_name.name);
705 v9ses = v9fs_inode2v9ses(dir);
706 dir_dentry = v9fs_dentry_from_dir_inode(dir);
707 dfid = v9fs_fid_lookup(dir_dentry);
709 return PTR_ERR(dfid);
711 oldfid = v9fs_fid_lookup(old_dentry);
713 return PTR_ERR(oldfid);
715 name = (char *) dentry->d_name.name;
717 err = p9_client_link(dfid, oldfid, (char *)dentry->d_name.name);
720 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_link failed %d\n", err);
724 v9fs_invalidate_inode_attr(dir);
725 if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
726 /* Get the latest stat info from server. */
728 fid = v9fs_fid_lookup(old_dentry);
732 v9fs_refresh_inode_dotl(fid, old_dentry->d_inode);
734 ihold(old_dentry->d_inode);
735 d_instantiate(dentry, old_dentry->d_inode);
741 * v9fs_vfs_mknod_dotl - create a special file
742 * @dir: inode destination for new link
743 * @dentry: dentry for file
744 * @mode: mode for creation
745 * @rdev: device associated with special file
749 v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, int omode,
756 struct v9fs_session_info *v9ses;
757 struct p9_fid *fid = NULL, *dfid = NULL;
760 struct dentry *dir_dentry;
761 struct posix_acl *dacl = NULL, *pacl = NULL;
763 P9_DPRINTK(P9_DEBUG_VFS,
764 " %lu,%s mode: %x MAJOR: %u MINOR: %u\n", dir->i_ino,
765 dentry->d_name.name, omode, MAJOR(rdev), MINOR(rdev));
767 if (!new_valid_dev(rdev))
770 v9ses = v9fs_inode2v9ses(dir);
771 dir_dentry = v9fs_dentry_from_dir_inode(dir);
772 dfid = v9fs_fid_lookup(dir_dentry);
775 P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
780 gid = v9fs_get_fsgid_for_create(dir);
782 /* Update mode based on ACL value */
783 err = v9fs_acl_mode(dir, &mode, &dacl, &pacl);
785 P9_DPRINTK(P9_DEBUG_VFS,
786 "Failed to get acl values in mknod %d\n", err);
789 name = (char *) dentry->d_name.name;
791 err = p9_client_mknod_dotl(dfid, name, mode, rdev, gid, &qid);
795 v9fs_invalidate_inode_attr(dir);
796 /* instantiate inode and assign the unopened fid to the dentry */
797 if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
798 fid = p9_client_walk(dfid, 1, &name, 1);
801 P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
807 inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
809 err = PTR_ERR(inode);
810 P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
814 err = v9fs_fid_add(dentry, fid);
817 d_instantiate(dentry, inode);
821 * Not in cached mode. No need to populate inode with stat.
822 * socket syscall returns a fd, so we need instantiate
824 inode = v9fs_get_inode(dir->i_sb, mode, rdev);
826 err = PTR_ERR(inode);
829 d_instantiate(dentry, inode);
831 /* Now set the ACL based on the default value */
832 v9fs_set_create_acl(dentry, &dacl, &pacl);
835 p9_client_clunk(fid);
836 v9fs_set_create_acl(NULL, &dacl, &pacl);
841 * v9fs_vfs_follow_link_dotl - follow a symlink path
842 * @dentry: dentry for symlink
848 v9fs_vfs_follow_link_dotl(struct dentry *dentry, struct nameidata *nd)
852 char *link = __getname();
855 P9_DPRINTK(P9_DEBUG_VFS, "%s\n", dentry->d_name.name);
858 link = ERR_PTR(-ENOMEM);
861 fid = v9fs_fid_lookup(dentry);
864 link = ERR_CAST(fid);
867 retval = p9_client_readlink(fid, &target);
869 strcpy(link, target);
874 link = ERR_PTR(retval);
876 nd_set_link(nd, link);
880 int v9fs_refresh_inode_dotl(struct p9_fid *fid, struct inode *inode)
883 struct p9_stat_dotl *st;
884 struct v9fs_session_info *v9ses;
886 v9ses = v9fs_inode2v9ses(inode);
887 st = p9_client_getattr_dotl(fid, P9_STATS_ALL);
891 * Don't update inode if the file type is different
893 if ((inode->i_mode & S_IFMT) != (st->st_mode & S_IFMT))
896 spin_lock(&inode->i_lock);
898 * We don't want to refresh inode->i_size,
899 * because we may have cached data
901 i_size = inode->i_size;
902 v9fs_stat2inode_dotl(st, inode);
904 inode->i_size = i_size;
905 spin_unlock(&inode->i_lock);
911 const struct inode_operations v9fs_dir_inode_operations_dotl = {
912 .create = v9fs_vfs_create_dotl,
913 .lookup = v9fs_vfs_lookup,
914 .link = v9fs_vfs_link_dotl,
915 .symlink = v9fs_vfs_symlink_dotl,
916 .unlink = v9fs_vfs_unlink,
917 .mkdir = v9fs_vfs_mkdir_dotl,
918 .rmdir = v9fs_vfs_rmdir,
919 .mknod = v9fs_vfs_mknod_dotl,
920 .rename = v9fs_vfs_rename,
921 .getattr = v9fs_vfs_getattr_dotl,
922 .setattr = v9fs_vfs_setattr_dotl,
923 .setxattr = generic_setxattr,
924 .getxattr = generic_getxattr,
925 .removexattr = generic_removexattr,
926 .listxattr = v9fs_listxattr,
927 .get_acl = v9fs_iop_get_acl,
930 const struct inode_operations v9fs_file_inode_operations_dotl = {
931 .getattr = v9fs_vfs_getattr_dotl,
932 .setattr = v9fs_vfs_setattr_dotl,
933 .setxattr = generic_setxattr,
934 .getxattr = generic_getxattr,
935 .removexattr = generic_removexattr,
936 .listxattr = v9fs_listxattr,
937 .get_acl = v9fs_iop_get_acl,
940 const struct inode_operations v9fs_symlink_inode_operations_dotl = {
941 .readlink = generic_readlink,
942 .follow_link = v9fs_vfs_follow_link_dotl,
943 .put_link = v9fs_vfs_put_link,
944 .getattr = v9fs_vfs_getattr_dotl,
945 .setattr = v9fs_vfs_setattr_dotl,
946 .setxattr = generic_setxattr,
947 .getxattr = generic_getxattr,
948 .removexattr = generic_removexattr,
949 .listxattr = v9fs_listxattr,