projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 3ed8491c EVH |
1 | /* |
| 2 | * V9FS FID Management | |
| 3 | * | |
| 4 | * Copyright (C) 2005 by Eric Van Hensbergen <ericvh@gmail.com> | |
| 5 | * | |
| 6 | * This program is free software; you can redistribute it and/or modify | |
| 42e8c509 EVH |
7 | * it under the terms of the GNU General Public License version 2 |
| 8 | * as published by the Free Software Foundation. | |
| 3ed8491c EVH |
9 | * |
| 10 | * This program is distributed in the hope that it will be useful, | |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 13 | * GNU General Public License for more details. | |
| 14 | * | |
| 15 | * You should have received a copy of the GNU General Public License | |
| 16 | * along with this program; if not, write to: | |
| 17 | * Free Software Foundation | |
| 18 | * 51 Franklin Street, Fifth Floor | |
| 19 | * Boston, MA 02111-1301 USA | |
| 20 | * | |
| 21 | */ | |
| 22 | ||
| 23 | #include <linux/list.h> | |
| 24 | ||
| 25 | #define FID_OP 0 | |
| 26 | #define FID_WALK 1 | |
| 0b8dd177 | 27 | #define FID_CREATE 2 |
| 3ed8491c EVH |
28 | |
| 29 | struct v9fs_fid { | |
| 30 | struct list_head list; /* list of fids associated with a dentry */ | |
| 31 | struct list_head active; /* XXX - debug */ | |
| 32 | ||
| da977b2c EVH |
33 | struct semaphore lock; |
| 34 | ||
| 3ed8491c EVH |
35 | u32 fid; |
| 36 | unsigned char fidopen; /* set when fid is opened */ | |
| 3ed8491c EVH |
37 | unsigned char fidclunked; /* set when fid has already been clunked */ |
| 38 | ||
| 39 | struct v9fs_qid qid; | |
| 40 | u32 iounit; | |
| 41 | ||
| 42 | /* readdir stuff */ | |
| 43 | int rdir_fpos; | |
| 44 | loff_t rdir_pos; | |
| 45 | struct v9fs_fcall *rdir_fcall; | |
| 46 | ||
| 47 | /* management stuff */ | |
| 3ed8491c EVH |
48 | uid_t uid; /* user associated with this fid */ |
| 49 | ||
| 50 | /* private data */ | |
| 51 | struct file *filp; /* backpointer to File struct for open files */ | |
| 52 | struct v9fs_session_info *v9ses; /* session info for this FID */ | |
| 53 | }; | |
| 54 | ||
| 0b8dd177 LI |
55 | struct v9fs_fid *v9fs_fid_lookup(struct dentry *dentry); |
| 56 | struct v9fs_fid *v9fs_fid_get_created(struct dentry *); | |
| 3ed8491c | 57 | void v9fs_fid_destroy(struct v9fs_fid *fid); |
| 6a3124a3 LI |
58 | struct v9fs_fid *v9fs_fid_create(struct v9fs_session_info *, int fid); |
| 59 | int v9fs_fid_insert(struct v9fs_fid *fid, struct dentry *dentry); | |
| da977b2c EVH |
60 | struct v9fs_fid *v9fs_fid_clone(struct dentry *dentry); |
| 61 | void v9fs_fid_clunk(struct v9fs_session_info *v9ses, struct v9fs_fid *fid); | |
| 62 |