lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Tue, 09 Sep 2014 16:56:58 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	eric.dumazet@...il.com
Cc:	therbert@...gle.com, alexander.h.duyck@...el.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH v2 net-next] tcp: remove dst refcount false sharing for
 prequeue mode

From: Eric Dumazet <eric.dumazet@...il.com>
Date: Mon, 08 Sep 2014 14:30:42 -0700

> In the worst case, here is what is happening :
> 
> sk_rx_dst is checked and invalidated in tcp_v4_do_rcv()
> 
> Next packets coming from prequeue might then have a NULL dst, and
> we'll do nothing special (sk_rx_dst will stay NULL), because we do
> handle NULL dst properly in inet_sk_rx_dst_set() and
> inet6_sk_rx_dst_set() 
> 
> But next packet to be processed (either in non prequeue mode or
> prequeue) will carry skb->dst and we will set sk->sk_rx_dst
> 
> I decided to not copy/paste the tests we do in the family dependent
> parts, because it was not worth the pain.

And, now applied.
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Powered by blists - more mailing lists