netdev - Re: [PATCH v2] net: ipv6: fib: don't sleep inside atomic lock

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Message-Id: <20140822.105537.779696105209269317.davem@davemloft.net>
Date:	Fri, 22 Aug 2014 10:55:37 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	bebl@...eta.org
Cc:	kuznet@....inr.ac.ru, jmorris@...ei.org, yoshfuji@...ux-ipv6.org,
	kaber@...sh.net, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, hannes@...hat.com
Subject: Re: [PATCH v2] net: ipv6: fib: don't sleep inside atomic lock

From: Benjamin Block <bebl@...eta.org>
Date: Thu, 21 Aug 2014 19:37:48 +0200

> The function fib6_commit_metrics() allocates a piece of memory in mode
> GFP_KERNEL while holding an atomic lock from higher up in the stack, in
> the function __ip6_ins_rt(). This produces the following BUG:
 ...
> Fixing this by replacing the mode GFP_KERNEL with GFP_ATOMIC.
> 
> Signed-off-by: Benjamin Block <bebl@...eta.org>

Applied, thanks.
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