Eric Van Hensbergen | 9e82cf6 | 2005-09-09 13:04:20 -0700 | [diff] [blame] | 1 | /* |
| 2 | * V9FS VFS extensions. |
| 3 | * |
| 4 | * Copyright (C) 2004 by Eric Van Hensbergen <ericvh@gmail.com> |
| 5 | * Copyright (C) 2002 by Ron Minnich <rminnich@lanl.gov> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
Eric Van Hensbergen | 42e8c50 | 2006-03-25 03:07:28 -0800 | [diff] [blame] | 8 | * it under the terms of the GNU General Public License version 2 |
| 9 | * as published by the Free Software Foundation. |
Eric Van Hensbergen | 9e82cf6 | 2005-09-09 13:04:20 -0700 | [diff] [blame] | 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to: |
| 18 | * Free Software Foundation |
| 19 | * 51 Franklin Street, Fifth Floor |
| 20 | * Boston, MA 02111-1301 USA |
| 21 | * |
| 22 | */ |
| 23 | |
| 24 | /* plan9 semantics are that created files are implicitly opened. |
| 25 | * But linux semantics are that you call create, then open. |
| 26 | * the plan9 approach is superior as it provides an atomic |
| 27 | * open. |
| 28 | * we track the create fid here. When the file is opened, if fidopen is |
| 29 | * non-zero, we use the fid and can skip some steps. |
| 30 | * there may be a better way to do this, but I don't know it. |
| 31 | * one BAD way is to clunk the fid on create, then open it again: |
| 32 | * you lose the atomicity of file open |
| 33 | */ |
| 34 | |
| 35 | /* special case: |
| 36 | * unlink calls remove, which is an implicit clunk. So we have to track |
| 37 | * that kind of thing so that we don't try to clunk a dead fid. |
| 38 | */ |
| 39 | |
| 40 | extern struct file_system_type v9fs_fs_type; |
Christoph Hellwig | f5e54d6 | 2006-06-28 04:26:44 -0700 | [diff] [blame] | 41 | extern const struct address_space_operations v9fs_addr_operations; |
Arjan van de Ven | 4b6f5d2 | 2006-03-28 01:56:42 -0800 | [diff] [blame] | 42 | extern const struct file_operations v9fs_file_operations; |
Eric Van Hensbergen | e03abc0 | 2007-02-11 13:21:39 -0600 | [diff] [blame] | 43 | extern const struct file_operations v9fs_cached_file_operations; |
Arjan van de Ven | 4b6f5d2 | 2006-03-28 01:56:42 -0800 | [diff] [blame] | 44 | extern const struct file_operations v9fs_dir_operations; |
Eric Van Hensbergen | 9e82cf6 | 2005-09-09 13:04:20 -0700 | [diff] [blame] | 45 | extern struct dentry_operations v9fs_dentry_operations; |
Eric Van Hensbergen | e03abc0 | 2007-02-11 13:21:39 -0600 | [diff] [blame] | 46 | extern struct dentry_operations v9fs_cached_dentry_operations; |
Eric Van Hensbergen | 9e82cf6 | 2005-09-09 13:04:20 -0700 | [diff] [blame] | 47 | |
| 48 | struct inode *v9fs_get_inode(struct super_block *sb, int mode); |
| 49 | ino_t v9fs_qid2ino(struct v9fs_qid *qid); |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 50 | void v9fs_stat2inode(struct v9fs_stat *, struct inode *, struct super_block *); |
Eric Van Hensbergen | 9e82cf6 | 2005-09-09 13:04:20 -0700 | [diff] [blame] | 51 | int v9fs_dir_release(struct inode *inode, struct file *filp); |
| 52 | int v9fs_file_open(struct inode *inode, struct file *file); |
Latchesar Ionkov | 531b109 | 2006-01-08 01:05:00 -0800 | [diff] [blame] | 53 | void v9fs_inode2stat(struct inode *inode, struct v9fs_stat *stat); |
Eric Van Hensbergen | 9e82cf6 | 2005-09-09 13:04:20 -0700 | [diff] [blame] | 54 | void v9fs_dentry_release(struct dentry *); |
Latchesar Ionkov | 6a3124a | 2006-03-02 02:54:30 -0800 | [diff] [blame] | 55 | int v9fs_uflags2omode(int uflags); |