Re: fanotify - overall design before I start sending patches

[Douglas Leeder <douglas.leeder-j34lQMj1tz/QT0dZR+AlfA@public.gmane.org>]

Pavel Machek wrote:
> On Wed 2009-08-05 17:46:16, Tvrtko Ursulin wrote:
>> On Wednesday 05 August 2009 03:05:34 Pavel Machek wrote:

>> Just to make sure you haven't missed this - it is not that they have to 
>> complete the whole operation before the timeout period (since you mention 
>> realtime/mlock I suspect this is what you think?), but _during_ the operation 
>> they have to show that they are active by sending something like keep alive 
>> messages.
>>
>> Or you are worried about failing to meet even that on a loaded system? There 
>> has to be something like this otherwise hung userspace client would kill the 
>> whole system.
> 
> Of course, I'm worried about failing to meet this on loaded
> system. And the fact that I _have_ to worry about that means that
> interface is ugly/broken.

You mean that in 5 seconds, you won't have any point when you can tell
the kernel, "I'm still working"?

-- 
Douglas Leeder