netdev - Re: [PATCH 1/2] bna: Added flash sub-module and ethtool eeprom entry points.

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Message-Id: <20111226.101035.782817982749726680.davem@davemloft.net>
Date:	Mon, 26 Dec 2011 10:10:35 -0500 (EST)
From:	David Miller <davem@...emloft.net>
To:	jan.ceuleers@...puter.org
Cc:	bhutchings@...arflare.com, kgudipat@...cade.com,
	netdev@...r.kernel.org, adapter_linux_open_src_team@...cade.com,
	rmody@...cade.com
Subject: Re: [PATCH 1/2] bna: Added flash sub-module and ethtool eeprom
 entry points.

From: Jan Ceuleers <jan.ceuleers@...puter.org>
Date: Mon, 26 Dec 2011 13:02:27 +0100

> Is it OK to hold the RTNL lock for that length of time?

No, because it means that no network configuration of any kind can
occur during this time.

Backbone routers need to perform hundreds of routing table updates per
second, even more during major route flaps.  All of these would be
blocked during your flash operation.

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