projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _LINUX_DNOTIFY_H |
| 2 | #define _LINUX_DNOTIFY_H | |
| 3 | /* | |
| 4 | * Directory notification for Linux | |
| 5 | * | |
| 6 | * Copyright (C) 2000,2002 Stephen Rothwell | |
| 7 | */ | |
| 8 | ||
| 9 | #include <linux/fs.h> | |
| 10 | ||
| 11 | struct dnotify_struct { | |
| 12 | struct dnotify_struct * dn_next; | |
| 13 | unsigned long dn_mask; | |
| 14 | int dn_fd; | |
| 15 | struct file * dn_filp; | |
| 16 | fl_owner_t dn_owner; | |
| 17 | }; | |
| 18 | ||
| 19 | #ifdef __KERNEL__ | |
| 20 | ||
| 1da177e4 LT |
21 | |
| 22 | #ifdef CONFIG_DNOTIFY | |
| 23 | ||
| 24 | extern void __inode_dir_notify(struct inode *, unsigned long); | |
| 25 | extern void dnotify_flush(struct file *, fl_owner_t); | |
| 26 | extern int fcntl_dirnotify(int, struct file *, unsigned long); | |
| 27 | extern void dnotify_parent(struct dentry *, unsigned long); | |
| 28 | ||
| 29 | static inline void inode_dir_notify(struct inode *inode, unsigned long event) | |
| 30 | { | |
| 31 | if (inode->i_dnotify_mask & (event)) | |
| 32 | __inode_dir_notify(inode, event); | |
| 33 | } | |
| 34 | ||
| 35 | #else | |
| 36 | ||
| 37 | static inline void __inode_dir_notify(struct inode *inode, unsigned long event) | |
| 38 | { | |
| 39 | } | |
| 40 | ||
| 41 | static inline void dnotify_flush(struct file *filp, fl_owner_t id) | |
| 42 | { | |
| 43 | } | |
| 44 | ||
| 45 | static inline int fcntl_dirnotify(int fd, struct file *filp, unsigned long arg) | |
| 46 | { | |
| 47 | return -EINVAL; | |
| 48 | } | |
| 49 | ||
| 50 | static inline void dnotify_parent(struct dentry *dentry, unsigned long event) | |
| 51 | { | |
| 52 | } | |
| 53 | ||
| 54 | static inline void inode_dir_notify(struct inode *inode, unsigned long event) | |
| 55 | { | |
| 56 | } | |
| 57 | ||
| 58 | #endif /* CONFIG_DNOTIFY */ | |
| 59 | ||
| 60 | #endif /* __KERNEL __ */ | |
| 61 | ||
| 62 | #endif /* _LINUX_DNOTIFY_H */ |