Re: fanotify - overall design before I start sending patches

Douglas Leeder
2009-08-06T10:21:00Z

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