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dnotify: reimplement dnotify using fsnotify

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Reimplement dnotify using fsnotify.

Signed-off-by: Eric Paris <eparis@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Eric Paris 2009-05-21 17:01:33 -04:00
parent c28f7e56e9
commit 3c5119c05d
7 changed files with 413 additions and 198 deletions
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29
include/linux/dnotify.h
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@ -10,7 +10,7 @@
struct dnotify_struct {
struct dnotify_struct * dn_next;
unsigned long dn_mask;
__u32 dn_mask;
int dn_fd;
struct file * dn_filp;
fl_owner_t dn_owner;
@ -21,23 +21,18 @@ struct dnotify_struct {
#ifdef CONFIG_DNOTIFY
extern void __inode_dir_notify(struct inode *, unsigned long);
#define DNOTIFY_ALL_EVENTS (FS_DELETE | FS_DELETE_CHILD |\
FS_MODIFY | FS_MODIFY_CHILD |\
FS_ACCESS | FS_ACCESS_CHILD |\
FS_ATTRIB | FS_ATTRIB_CHILD |\
FS_CREATE | FS_DN_RENAME |\
FS_MOVED_FROM | FS_MOVED_TO)
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)
{
}
@ -47,14 +42,6 @@ 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 __ */