From: Johannes Berg <johannes@sipsolutions.net>
To: David Miller <davem@davemloft.net>, netdev@vger.kernel.org
Cc: xdp-newbies@vger.kernel.org
Subject: Re: [PATCH net-next RFC] Generic XDP
Date: Sun, 09 Apr 2017 09:04:07 +0200 [thread overview]
Message-ID: <1491721447.4309.2.camel@sipsolutions.net> (raw)
In-Reply-To: <1491719118.4309.1.camel@sipsolutions.net> (sfid-20170409_082543_286603_8F6531E0)
On Sun, 2017-04-09 at 08:25 +0200, Johannes Berg wrote:
> That would also let you use rcu_assign_pointer() which seems like the
> right thing to do here, along with marking the xdp_prog pointer as
> __rcu? That'd also let you use rcu_dereference() instead of
> READ_ONCE() which seems like the better annotation?
Looks like drivers do it exactly this way too though.
What I forgot: I guess we could make drivers use dev->xdp_prog after
this, instead of having their own?
johannes
next prev parent reply other threads:[~2017-04-09 7:04 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-09 3:07 [PATCH net-next RFC] Generic XDP David Miller
2017-04-09 5:17 ` Andy Gospodarek
2017-04-09 19:25 ` David Miller
2017-04-09 6:25 ` Johannes Berg
2017-04-09 7:04 ` Johannes Berg [this message]
2017-04-09 19:47 ` David Miller
2017-04-09 13:46 ` Andrew Lunn
2017-04-09 19:24 ` David Miller
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