On Fri, 9 Mar 2007, Oleg Nesterov wrote:

> Ugh. Still can't understand, probably I missed something or misread this 
> patch.
> 
> If we shift signalfd_notify() from 
> specific_send_sig_info/__group_send_sig_info
> to send_signal(), we have the same "list_empty()" fastpath if no signalfds are
> attached to the sighand. The difference is that we don't count sig_ignored()
> signals, which looks right to me.

Now I shifted the check into send_signal(), since signalfd now uses the 
standard dequeue_signal, and hence compete with standard signal delivery 
against the queue. This was initial Linus design.




- Davide


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