From: Eric Dumazet <eric.dumazet@gmail.com>
To: Richard Cochran <richardcochran@gmail.com>
Cc: Johannes Berg <johannes@sipsolutions.net>,
David Miller <davem@davemloft.net>,
netdev@vger.kernel.org
Subject: Re: [PATCH 0/3] net: time stamping fixes
Date: Wed, 19 Oct 2011 16:33:56 +0200 [thread overview]
Message-ID: <1319034836.8416.30.camel@edumazet-laptop> (raw)
In-Reply-To: <20111019142750.GB15253@netboy.at.omicron.at>
Le mercredi 19 octobre 2011 à 16:27 +0200, Richard Cochran a écrit :
> On Wed, Oct 19, 2011 at 04:24:08PM +0200, Johannes Berg wrote:
> > On Wed, 2011-10-19 at 16:08 +0200, Eric Dumazet wrote:
> >
> > > > Anyway, I guess you agree that the patches as-is aren't actually the
> > > > right solution since we can't sock_hold() a TX skb socket reference?
> > >
> > > Yes, the sock_hold() could be changed by an atomic_inc_not_zero()
> > >
> > > What about doing this ?
> >
> > > if (likely(phydev->drv->txtstamp)) {
> > > + if (!atomic_inc_not_zero(&sk->sk_refcnt))
> > > + return;
> >
> > Yeah that seems like it works and just drops the timestamp in case we
> > don't still have a live socket, which is perfectly fine.
>
> Yes, I think it resolves any doubt. I will resubmit with this
> solution.
>
Thanks guys !
next prev parent reply other threads:[~2011-10-19 14:34 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-07 17:11 [RFC] net: remove erroneous sk null assignment in timestamping Johannes Berg
2011-10-07 17:33 ` David Miller
2011-10-07 17:40 ` Johannes Berg
2011-10-07 17:47 ` Johannes Berg
2011-10-07 17:53 ` Johannes Berg
2011-10-07 18:42 ` Johannes Berg
2011-10-08 7:59 ` Richard Cochran
2011-10-08 7:57 ` Richard Cochran
2011-10-08 8:16 ` Johannes Berg
2011-10-08 8:57 ` Eric Dumazet
2011-10-08 10:32 ` Johannes Berg
2011-10-11 13:34 ` Richard Cochran
2011-10-08 10:35 ` Richard Cochran
2011-10-12 18:36 ` [PATCH 1/1] net: hold sock reference while processing tx timestamps Richard Cochran
2011-10-12 19:25 ` Eric Dumazet
2011-10-12 19:27 ` Johannes Berg
2011-10-12 19:52 ` Eric Dumazet
2011-10-13 8:54 ` Johannes Berg
2011-10-13 4:51 ` Richard Cochran
2011-10-13 9:46 ` [PATCH 0/3] net: time stamping fixes Richard Cochran
2011-10-13 9:46 ` [PATCH 1/3] net: hold sock reference while processing tx timestamps Richard Cochran
2011-10-19 4:42 ` Eric Dumazet
2011-10-13 9:46 ` [PATCH 2/3] dp83640: use proper function to free transmit time stamping packets Richard Cochran
2011-10-19 4:47 ` Eric Dumazet
2011-10-13 9:46 ` [PATCH 3/3] dp83640: free packet queues on remove Richard Cochran
2011-10-19 4:48 ` Eric Dumazet
2011-10-19 4:16 ` [PATCH 0/3] net: time stamping fixes David Miller
2011-10-19 5:15 ` Johannes Berg
2011-10-19 11:50 ` Richard Cochran
2011-10-19 12:33 ` Eric Dumazet
2011-10-19 12:38 ` Eric Dumazet
2011-10-19 12:58 ` Johannes Berg
2011-10-19 13:09 ` Johannes Berg
2011-10-19 13:25 ` Eric Dumazet
2011-10-19 13:35 ` Johannes Berg
2011-10-19 13:44 ` Eric Dumazet
2011-10-19 13:57 ` Johannes Berg
2011-10-19 14:08 ` Eric Dumazet
2011-10-19 14:24 ` Johannes Berg
2011-10-19 14:27 ` Richard Cochran
2011-10-19 14:33 ` Eric Dumazet [this message]
2011-10-19 13:21 ` Eric Dumazet
2011-10-19 13:25 ` Johannes Berg
2011-10-19 13:27 ` Eric Dumazet
2011-10-19 13:32 ` Johannes Berg
2011-10-19 14:25 ` Richard Cochran
2011-10-21 10:49 ` [PATCH v2 " Richard Cochran
2011-10-21 10:49 ` [PATCH v2 1/3] net: hold sock reference while processing tx timestamps Richard Cochran
2011-10-21 11:31 ` Eric Dumazet
2011-10-24 6:55 ` David Miller
2011-10-21 11:44 ` Johannes Berg
2011-10-21 10:49 ` [PATCH v2 2/3] dp83640: use proper function to free transmit time stamping packets Richard Cochran
2011-10-24 6:55 ` David Miller
2011-10-24 17:47 ` Richard Cochran
2011-10-24 23:16 ` David Miller
2011-10-21 10:49 ` [PATCH v2 3/3] dp83640: free packet queues on remove Richard Cochran
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