netdev - Re: [PATCH 1/1] netstamp_needed shouldn't be jump_label

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Message-ID: <1322512426.2970.15.camel@edumazet-laptop>
Date:	Mon, 28 Nov 2011 21:33:46 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	igorm@....rs
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH 1/1] netstamp_needed shouldn't be jump_label_key

Le lundi 28 novembre 2011 à 21:23 +0100, igorm@....rs a écrit :
> From: Igor Maravic <igorm@....rs>
> 
> Problem with setting netstamp_needed as jump_label_key is that
> it inc/dec, functions net_enable_timestamp/net_disable_timestamp,
> are called from interrupts.
> 
> That can cause DEADLOCK, because jump_label_{inc, dec} are using mutex locking,
> that may sleep.
> 
> Signed-off-by: Igor Maravic <igorm@....rs>
> 

Come on, we can find another way to handle this :)

Its net-next, we are allowed to try to find something better.



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