From: Davide Libenzi <davidel@xmailserver.org>
To: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Leonardo Chiquitto <leonardo.lists@gmail.com>,
netdev@vger.kernel.org, "David S. Miller" <davem@davemloft.net>
Subject: Re: POLLPRI/poll() behavior change since 2.6.31
Date: Thu, 6 Jan 2011 14:40:46 -0800 (PST) [thread overview]
Message-ID: <alpine.DEB.2.00.1101061429080.4928@davide-lnx1> (raw)
In-Reply-To: <1294332929.3074.49.camel@edumazet-laptop>
On Thu, 6 Jan 2011, Eric Dumazet wrote:
> Hmm, this is because sock_def_readable() uses :
>
> wake_up_interruptible_sync_poll(&wq->wait, POLLIN | POLLRDNORM |
> POLLRDBAND);
>
> So POLLPRI bit is not signaled.
>
> I would just add POLLPRI flag in sock_def_readable()
>
> (Alternatively, define a tcp_def_readable() function to pass POLLPRI
> only if TCP_URG is set, but is it worth the pain for a seldom used
> feature ?)
It would be kinda cleaner though, /me thinks.
- Davide
next prev parent reply other threads:[~2011-01-06 22:40 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-06 15:50 POLLPRI/poll() behavior change since 2.6.31 Leonardo Chiquitto
2011-01-06 16:55 ` Eric Dumazet
2011-01-06 18:10 ` Leonardo Chiquitto
2011-01-06 22:40 ` Davide Libenzi [this message]
2011-01-07 13:31 ` Eric Dumazet
2011-01-06 17:44 ` [PATCH] net: add POLLPRI to sock_def_readable() Eric Dumazet
2011-01-06 18:55 ` David Miller
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