netdev - Re: [PATCH] ipv6: fix rt6_update

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Date:	Tue, 17 Apr 2012 22:32:33 -0400 (EDT)
From:	David Miller <davem@...emloft.net>
To:	gaofeng@...fujitsu.com
Cc:	jbohac@...e.cz, netdev@...r.kernel.org
Subject: Re: [PATCH] ipv6: fix rt6_update_expires

From: Gao feng <gaofeng@...fujitsu.com>
Date: Wed, 18 Apr 2012 10:24:48 +0800

> 于 2012年04月16日 21:34, Jiri Bohac 写道:
>> 
>> Commit 1716a961 (ipv6: fix problem with expired dst cache) broke PMTU
>> discovery. rt6_update_expires() calls dst_set_expires(), which only updates
>> dst->expires if it has not been set previously (expires == 0) or if the new
>> expires is earlier than the current dst->expires.
>> 
>> rt6_update_expires() needs to zero rt->dst.expires, otherwise it will contain
>> ivalid data left over from rt->dst.from and will confuse dst_set_expires().
>> 
>> Signed-off-by: Jiri Bohac <jbohac@...e.cz>
 ...
> looks good to me, thanks.

Applied.
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