"FAN_EVENT_ON_CHILD: the caller is interested in events on full directory hierarchies."
It's only for the children of the inode in question. So marking /tmp/dir will tell you about /tmp/dir/file, but not about /tmp/dir/subdir/file. So it still has that same PITA problem of watching a complete directory tree as inotify.
"If the FAN_GLOBAL_LISTENER option was provided at bind time, then all files are "marked" at the outset; FANOTIFY_REMOVE_MARK can be used to prune those which are not interesting;"
Not quite true, if FAN_GLOBAL_LISTENER is provided at bind time then all file events matching the mask provided at bind time will be sent to the listener. FANOTIFY_SET_MARK using the ignored_mask field is used to stop notification about events.
Copyright © 2017, Eklektix, Inc.
Comments and public postings are copyrighted by their creators.
Linux is a registered trademark of Linus Torvalds