Commit | Line | Data |
---|---|---|
e69e7fe5 EVH |
1 | /* |
2 | * linux/fs/9p/vfs_dentry.c | |
3 | * | |
4 | * This file contians vfs dentry ops for the 9P2000 protocol. | |
5 | * | |
6 | * Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com> | |
7 | * Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
42e8c509 EVH |
10 | * it under the terms of the GNU General Public License version 2 |
11 | * as published by the Free Software Foundation. | |
e69e7fe5 EVH |
12 | * |
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. | |
17 | * | |
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 | |
23 | * | |
24 | */ | |
25 | ||
26 | #include <linux/module.h> | |
27 | #include <linux/errno.h> | |
28 | #include <linux/fs.h> | |
29 | #include <linux/file.h> | |
30 | #include <linux/pagemap.h> | |
31 | #include <linux/stat.h> | |
32 | #include <linux/string.h> | |
33 | #include <linux/smp_lock.h> | |
34 | #include <linux/inet.h> | |
35 | #include <linux/namei.h> | |
36 | #include <linux/idr.h> | |
37 | ||
38 | #include "debug.h" | |
39 | #include "v9fs.h" | |
40 | #include "9p.h" | |
41 | #include "v9fs_vfs.h" | |
e69e7fe5 EVH |
42 | #include "fid.h" |
43 | ||
44 | /** | |
46f6dac2 EVH |
45 | * v9fs_dentry_delete - called when dentry refcount equals 0 |
46 | * @dentry: dentry in question | |
e69e7fe5 | 47 | * |
46f6dac2 EVH |
48 | * By returning 1 here we should remove cacheing of unused |
49 | * dentry components. | |
e69e7fe5 EVH |
50 | * |
51 | */ | |
52 | ||
5174fdab | 53 | static int v9fs_dentry_delete(struct dentry *dentry) |
e69e7fe5 | 54 | { |
46f6dac2 EVH |
55 | dprintk(DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_iname, dentry); |
56 | return 1; | |
e69e7fe5 EVH |
57 | } |
58 | ||
59 | /** | |
60 | * v9fs_dentry_release - called when dentry is going to be freed | |
61 | * @dentry: dentry that is being release | |
62 | * | |
63 | */ | |
64 | ||
65 | void v9fs_dentry_release(struct dentry *dentry) | |
66 | { | |
3cf6429a LI |
67 | int err; |
68 | ||
e69e7fe5 EVH |
69 | dprintk(DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_iname, dentry); |
70 | ||
71 | if (dentry->d_fsdata != NULL) { | |
72 | struct list_head *fid_list = dentry->d_fsdata; | |
73 | struct v9fs_fid *temp = NULL; | |
74 | struct v9fs_fid *current_fid = NULL; | |
e69e7fe5 EVH |
75 | |
76 | list_for_each_entry_safe(current_fid, temp, fid_list, list) { | |
3cf6429a | 77 | err = v9fs_t_clunk(current_fid->v9ses, current_fid->fid); |
e69e7fe5 | 78 | |
3cf6429a | 79 | if (err < 0) |
531b1094 LI |
80 | dprintk(DEBUG_ERROR, "clunk failed: %d name %s\n", |
81 | err, dentry->d_iname); | |
e69e7fe5 | 82 | |
e69e7fe5 EVH |
83 | v9fs_fid_destroy(current_fid); |
84 | } | |
85 | ||
86 | kfree(dentry->d_fsdata); /* free the list_head */ | |
87 | } | |
88 | } | |
89 | ||
90 | struct dentry_operations v9fs_dentry_operations = { | |
46f6dac2 | 91 | .d_delete = v9fs_dentry_delete, |
e69e7fe5 EVH |
92 | .d_release = v9fs_dentry_release, |
93 | }; |