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From: Vu Pham <vuhuong-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
To: Roland Dreier <rdreier-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
Cc: Linux RDMA list <linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: [ofa-general][PATCH 2/4] SRP fail-over faster
Date: Wed, 14 Oct 2009 14:00:22 -0700	[thread overview]
Message-ID: <4AD63BE6.3050303@mellanox.com> (raw)
In-Reply-To: <adatyy190ti.fsf-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>

Roland Dreier wrote:
>  > >  > -	wait_for_completion(&target->done);
>  > >
>  > > How do you avoid leaking connection on module unload etc?  Don't we have
>  > > to wait for the disconnect to finish somewhere?
>  > >
>  > >  - R.
>  > >   
>  > Are you talking about cm_id?
>  > I think that we wait because we want to reuse cq/qp associate with the
>  > connection.
>  > On module unload, we destroy cm_id, cq, qp altogether.
>
> OK, I think I understand this piece locally (although if you delete the
> wait_for_completion() it would probably make more sense to delete the
> init_completion() just before it as well).
>
> However is it really a correct to reuse a cm_id that is in state
> timewait to initiate a new connection?  That seems pretty fragile to me.
>   
Understood. However, we have to wait (1 << max(timeout - 8, 0)) ms; 
therefore, we need to disconnect without wait
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  parent reply	other threads:[~2009-10-14 21:00 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-12 22:57 [ofa-general][PATCH 2/4] SRP fail-over faster Vu Pham
     [not found] ` <4AD3B443.7040107-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2009-10-14 18:04   ` Roland Dreier
     [not found]     ` <ada63aham2r.fsf-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2009-10-14 19:59       ` Vu Pham
     [not found]         ` <4AD62D9D.1020900-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
2009-10-14 20:29           ` Roland Dreier
     [not found]             ` <adatyy190ti.fsf-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2009-10-14 21:00               ` Vu Pham [this message]
2009-10-22 23:08               ` Vu Pham

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