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From: David Miller <davem@davemloft.net>
To: sd@queasysnail.net
Cc: netdev@vger.kernel.org, sbrivio@redhat.com
Subject: Re: [PATCH net] ip_tunnel: don't force DF when MTU is locked
Date: Sat, 17 Nov 2018 21:51:40 -0800 (PST)	[thread overview]
Message-ID: <20181117.215140.1373280541611710941.davem@davemloft.net> (raw)
In-Reply-To: <218932a71a1f19b07dc6f92daaf9baed9e532cfe.1542382139.git.sd@queasysnail.net>

From: Sabrina Dubroca <sd@queasysnail.net>
Date: Fri, 16 Nov 2018 16:58:19 +0100

> The various types of tunnels running over IPv4 can ask to set the DF
> bit to do PMTU discovery. However, PMTU discovery is subject to the
> threshold set by the net.ipv4.route.min_pmtu sysctl, and is also
> disabled on routes with "mtu lock". In those cases, we shouldn't set
> the DF bit.
> 
> This patch makes setting the DF bit conditional on the route's MTU
> locking state.
> 
> This issue seems to be older than git history.
> 
> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
> Reviewed-by: Stefano Brivio <sbrivio@redhat.com>

Applied and queued up for -stable.

      reply	other threads:[~2018-11-18 16:10 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-16 15:58 [PATCH net] ip_tunnel: don't force DF when MTU is locked Sabrina Dubroca
2018-11-18  5:51 ` David Miller [this message]

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