linux-kernel - Re: Why does test_bit() take a volatile addr?

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Message-ID: <87mwn4xrv9.fsf@rustcorp.com.au>
Date:	Mon, 23 Sep 2013 10:43:14 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Rob Landley <rob@...dley.net>
Cc:	torvalds@...ux-foundation.org,
	"Michael S. Tsirkin" <mst@...hat.com>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: Why does test_bit() take a volatile addr?

Rob Landley <rob@...dley.net> writes:
> On 09/15/2013 11:08:35 PM, Rusty Russell wrote:
>> Predates git, does anyone remember the rationale?
>
> Depends which git: http://landley.net/kdocs/fullhist/ :)

Not useful.  See Geert's more helpful response.

Cheers,
Rusty.
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