Re: [PATCH 1/8] networking/fanotify: declare fanotify socket numbers

Jamie Lokier
2009-09-14T00:18:03Z

Evgeniy Polyakov wrote:
> On Fri, Sep 11, 2009 at 05:51:42PM -0400, Eric Paris (eparis@redhat.com) wrote:
> > For some things yes, some things no. I'd have to understand where loss
> > can happen to know if it's feasible. If I know loss happens in the
> > sender context that's great. If it's somewhere in the middle and the
> > sender doesn't immediately know it'll never be delivered, yes, I don't
> > think it can solve all my needs. How many places can and skb get lost
> > between the sender and the receiver?
>
> When queue is full or you do not have enough RAM. Both are reported at
> 'sending' time.

Can you ->poll() and wait reliably until the queue will accept an skb?
(A few spurious EAGAINs/ENOBUFs is ok, as long as it's not the norm).

-- Jamie