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fsnotify: add marks to inodes so groups can interpret how to handle those inodes

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This patch creates a way for fsnotify groups to attach marks to inodes.
These marks have little meaning to the generic fsnotify infrastructure
and thus their meaning should be interpreted by the group that attached
them to the inode's list.

dnotify and inotify  will make use of these markings to indicate which
inodes are of interest to their respective groups.  But this implementation
has the useful property that in the future other listeners could actually
use the marks for the exact opposite reason, aka to indicate which inodes
it had NO interest in.

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 17:01:26 -04:00
parent 90586523eb
commit 3be25f49b9
9 changed files with 483 additions and 3 deletions
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9
include/linux/fsnotify.h
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@ -99,6 +99,14 @@ static inline void fsnotify_move(struct inode *old_dir, struct inode *new_dir,
audit_inode_child(new_name, moved, new_dir);
}
/*
* fsnotify_inode_delete - and inode is being evicted from cache, clean up is needed
*/
static inline void fsnotify_inode_delete(struct inode *inode)
{
__fsnotify_inode_delete(inode);
}
/*
* fsnotify_nameremove - a filename was removed from a directory
*/
@ -121,6 +129,7 @@ static inline void fsnotify_inoderemove(struct inode *inode)
inotify_inode_is_dead(inode);
fsnotify(inode, FS_DELETE_SELF, inode, FSNOTIFY_EVENT_INODE);
__fsnotify_inode_delete(inode);
}
/*