netdev - Re: Question about synchronize_net() in AF

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Message-ID: <CAN8CM3xk3M1gt-aofb0t11x=7mrAmKjvW3ZpVHY-2TMwBqt-NQ@mail.gmail.com>
Date:	Wed, 10 Sep 2014 14:39:48 -0700
From:	Martin Kelly <martin@...tingkelly.com>
To:	mleitner@...hat.com
Cc:	David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
	Paul McKenney <paulmck@...ux.vnet.ibm.com>,
	Stephen Hemminger <stephen@...workplumber.org>
Subject: Re: Question about synchronize_net() in AF_PACKET close()

>
>
> And also http://patchwork.ozlabs.org/patch/181605/
> Which was an attempt on improving it.
>
> Marcelo
>

Yes, the patch I'm testing right now is very similar to the one
mentioned in that link. Whether or not the optimization is worth the
added complexity is a separate discussion. For now, I'm interested in
whether the optimization can be safely performed, both for improving
close() performance and for my own understanding of the code.
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