On Tue, Feb 02, 2016 at 09:32:56PM +0100, Hannes Frederic Sowa wrote: > But "struct pid *" in unix_skb_parms should be enough to get us to > corresponding "struct cred *" so we can decrement the correct counter > during skb destruction. > > So: > > We increment current task's unix_inflight and also check the current > task's limit during attaching fds to skbs and decrement the inflight > counter via "struct pid *". This looks like it should work.
I like it as well, the principle sounds sane. > >That way it's always the person who actually does the send (rather > >than the opener of the socket _or_ the opener of the file that gets > >passed around) that gets credited, and thanks to the cred pointer we > >can then de-credit them properly. > > Exactly, I try to implement that. Thanks a lot! Thanks to you Hannes, I appreciate that you work on it, it would take much more time to me to dig into this. Willy