lkml.org 
[lkml]   [2013]   [Nov]   [30]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [PATCH] ipv6: fix possible seqlock deadlock in ip6_finish_output2
From
Date
On Fri, 2013-11-29 at 06:39 +0100, Hannes Frederic Sowa wrote:
> IPv6 stats are 64 bits and thus are protected with a seqlock. By not
> disabling bottom-half we could deadlock here if we don't disable bh and
> a softirq reentrantly updates the same mib.
>
> Cc: Eric Dumazet <eric.dumazet@gmail.com>
> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org>
> ---

Acked-by: Eric Dumazet <edumazet@google.com>

(Note that the seqlock is only for 32bit arches)




\
 
 \ /
  Last update: 2013-11-30 18:01    [W:0.154 / U:0.012 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site