[fsnotify] report #2

Ilya Putsikau iputsikau at gmail.com
Sun Jun 6 17:32:26 UTC 2010

This week I've implemented read, poll and ioctl device driver calls.
Watches can be added and remove by ioctl call. Support for gathering
and distribution events is also almost complete. Currently the biggest
problem is how to find fsnotify node for vnode if vnode is not yet
known to fsnotify. I've started with adding second hash table to
lookup nodes by full path. By this approach appeared to be wrong,
because it's not safe to lock or unlock vnodes inside vop_*_post
calls, which is necessary for vn_fullpath.

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