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Message-Id: <20110915.154410.26623232105923613.davem@davemloft.net> Date: Thu, 15 Sep 2011 15:44:10 -0400 (EDT) From: David Miller <davem@...emloft.net> To: eric.dumazet@...il.com Cc: mitsuo.hayasaka.hu@...achi.com, herbert@...dor.hengli.com.au, shemminger@...tta.com, kaber@...sh.net, mirq-linux@...e.qmqm.pl, therbert@...gle.com, jesse@...ira.com, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, yrl.pp-manager.tt@...achi.com Subject: Re: [PATCH net-next] net: linkwatch: allow vlans to get carrier changes faster From: Eric Dumazet <eric.dumazet@...il.com> Date: Wed, 31 Aug 2011 11:31:58 +0200 > There is a time-lag of IFF_RUNNING flag consistency between vlan and > real devices when the real devices are in problem such as link or cable > broken. > > This leads to a degradation of Availability such as a delay of failover > in HA systems using vlan since the detection of the problem at real > device is delayed. > > We can avoid the linkwatch delay (~1 sec) for devices linked to another > ones, since delay is already done for the realdev. > > Based on a previous patch from Mitsuo Hayasaka > > Reported-by: Mitsuo Hayasaka <mitsuo.hayasaka.hu@...achi.com> > Signed-off-by: Eric Dumazet <eric.dumazet@...il.com> Applied. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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