git://bbs.cooldavid.org / net-next-2.6.git / blame
| Commit | Line | Data |
|---|---|---|
| 9e82cf6a EVH |
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 | |
| 42e8c509 EVH |
8 | * it under the terms of the GNU General Public License version 2 |
| 9 | * as published by the Free Software Foundation. | |
| 9e82cf6a EVH |
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; | |
| f5e54d6e | 41 | extern const struct address_space_operations v9fs_addr_operations; |
| 4b6f5d20 | 42 | extern const struct file_operations v9fs_file_operations; |
| 9b6533c9 | 43 | extern const struct file_operations v9fs_file_operations_dotl; |
| 4b6f5d20 | 44 | extern const struct file_operations v9fs_dir_operations; |
| 9b6533c9 | 45 | extern const struct file_operations v9fs_dir_operations_dotl; |
| a488257c AV |
46 | extern const struct dentry_operations v9fs_dentry_operations; |
| 47 | extern const struct dentry_operations v9fs_cached_dentry_operations; | |
| 9e82cf6a | 48 | |
| 60e78d2c AK |
49 | #ifdef CONFIG_9P_FSCACHE |
| 50 | struct inode *v9fs_alloc_inode(struct super_block *sb); | |
| 51 | void v9fs_destroy_inode(struct inode *inode); | |
| 52 | #endif | |
| 53 | ||
| 9e82cf6a | 54 | struct inode *v9fs_get_inode(struct super_block *sb, int mode); |
| b57922d9 | 55 | void v9fs_evict_inode(struct inode *inode); |
| bd238fb4 | 56 | ino_t v9fs_qid2ino(struct p9_qid *qid); |
| 51a87c55 | 57 | void v9fs_stat2inode(struct p9_wstat *, struct inode *, struct super_block *); |
| f0853122 | 58 | void v9fs_stat2inode_dotl(struct p9_stat_dotl *, struct inode *); |
| 9e82cf6a EVH |
59 | int v9fs_dir_release(struct inode *inode, struct file *filp); |
| 60 | int v9fs_file_open(struct inode *inode, struct file *file); | |
| 51a87c55 | 61 | void v9fs_inode2stat(struct inode *inode, struct p9_wstat *stat); |
| 9e82cf6a | 62 | void v9fs_dentry_release(struct dentry *); |
| 2e4bef41 | 63 | int v9fs_uflags2omode(int uflags, int extended); |
| fbedadc1 EVH |
64 | |
| 65 | ssize_t v9fs_file_readn(struct file *, char *, char __user *, u32, u64); | |
| 7a4439c4 | 66 | void v9fs_blank_wstat(struct p9_wstat *wstat); |
| 22d8dcdf | 67 | int v9fs_vfs_setattr_dotl(struct dentry *, struct iattr *); |
| b165d601 | 68 | int v9fs_file_fsync_dotl(struct file *filp, int datasync); |
| a099027c MK |
69 | |
| 70 | #define P9_LOCK_TIMEOUT (30*HZ) |