root/include/linux/dnotify.h

INCLUDED FROM

DEFINITIONS

1. inode_dir_notify
2. __inode_dir_notify
3. dnotify_flush
4. fcntl_dirnotify
5. dnotify_parent
6. inode_dir_notify

#ifndef _LINUX_DNOTIFY_H
#define _LINUX_DNOTIFY_H
/*
 * Directory notification for Linux
 *
 * Copyright (C) 2000,2002 Stephen Rothwell
 */

#include <linux/fs.h>

struct dnotify_struct {
        struct dnotify_struct * dn_next;
        unsigned long           dn_mask;
        int                     dn_fd;
        struct file *           dn_filp;
        fl_owner_t              dn_owner;
};

#ifdef __KERNEL__


#ifdef CONFIG_DNOTIFY

extern void __inode_dir_notify(struct inode *, unsigned long);
extern void dnotify_flush(struct file *, fl_owner_t);
extern int fcntl_dirnotify(int, struct file *, unsigned long);
extern void dnotify_parent(struct dentry *, unsigned long);

static inline void inode_dir_notify(struct inode *inode, unsigned long event)
{
        if (inode->i_dnotify_mask & (event))
                __inode_dir_notify(inode, event);
}

#else

static inline void __inode_dir_notify(struct inode *inode, unsigned long event)
{
}

static inline void dnotify_flush(struct file *filp, fl_owner_t id)
{
}

static inline int fcntl_dirnotify(int fd, struct file *filp, unsigned long arg)
{
        return -EINVAL;
}

static inline void dnotify_parent(struct dentry *dentry, unsigned long event)
{
}

static inline void inode_dir_notify(struct inode *inode, unsigned long event)
{
}

#endif /* CONFIG_DNOTIFY */

#endif /* __KERNEL __ */

#endif /* _LINUX_DNOTIFY_H */