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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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63 lines
1.2 KiB
C
63 lines
1.2 KiB
C
#ifndef _LINUX_DNOTIFY_H
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#define _LINUX_DNOTIFY_H
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/*
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* Directory notification for Linux
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*
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* Copyright (C) 2000,2002 Stephen Rothwell
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*/
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#include <linux/fs.h>
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struct dnotify_struct {
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struct dnotify_struct * dn_next;
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unsigned long dn_mask;
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int dn_fd;
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struct file * dn_filp;
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fl_owner_t dn_owner;
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};
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#ifdef __KERNEL__
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#ifdef CONFIG_DNOTIFY
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extern void __inode_dir_notify(struct inode *, unsigned long);
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extern void dnotify_flush(struct file *, fl_owner_t);
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extern int fcntl_dirnotify(int, struct file *, unsigned long);
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extern void dnotify_parent(struct dentry *, unsigned long);
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static inline void inode_dir_notify(struct inode *inode, unsigned long event)
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{
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if (inode->i_dnotify_mask & (event))
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__inode_dir_notify(inode, event);
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}
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#else
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static inline void __inode_dir_notify(struct inode *inode, unsigned long event)
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{
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}
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static inline void dnotify_flush(struct file *filp, fl_owner_t id)
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{
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}
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static inline int fcntl_dirnotify(int fd, struct file *filp, unsigned long arg)
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{
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return -EINVAL;
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}
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static inline void dnotify_parent(struct dentry *dentry, unsigned long event)
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{
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}
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static inline void inode_dir_notify(struct inode *inode, unsigned long event)
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{
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}
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#endif /* CONFIG_DNOTIFY */
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#endif /* __KERNEL __ */
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#endif /* _LINUX_DNOTIFY_H */
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