netdev - Re: [PATCH v2] netpoll: Close race condition between poll_one_napi and napi

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Date:	Tue, 22 Sep 2015 15:09:20 -0700
From:	Stephen Hemminger <stephen@...workplumber.org>
To:	Neil Horman <nhorman@...hat.com>
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH v2] netpoll: Close race condition between poll_one_napi
 and napi_disable

On Tue, 22 Sep 2015 16:01:36 -0400
Neil Horman <nhorman@...hat.com> wrote:

> +	clear_bit(NAPI_STATE_NPSVC, &n->state);
> +
>  }
why introduce extra line here?

> +	/*
> +	 * If we set this bit but see that it has already been set,
> +	 * that indicates that napi has been disabled and we need
> +	 * to abort this operation
> + 	 */
> +
> +	if(test_and_set_bit(NAPI_STATE_NPSVC, &napi->state))

And why introduce line after comment before code.
My preference is to have comment as close to code as possible.
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