From: Rusty Russell <rusty@rustcorp.com.au>
To: Ingo Molnar <mingo@elte.hu>
Cc: Linus Torvalds <torvalds@transmeta.com>, linux-kernel@vger.kernel.org
Subject: Re: [patch] futex-2.5.42-A2
Date: Fri, 18 Oct 2002 18:39:34 +1000 [thread overview]
Message-ID: <20021018093343.49A612C262@lists.samba.org> (raw)
In-Reply-To: Your message of "Wed, 16 Oct 2002 10:17:10 +0200." <Pine.LNX.4.44.0210161015260.4683-100000@localhost.localdomain>
In message <Pine.LNX.4.44.0210161015260.4683-100000@localhost.localdomain> you
write:
>
> On Wed, 16 Oct 2002, Rusty Russell wrote:
> > If you do this, *please* add:
> > /* Above check not sufficient if align of int < size. Break link. */
>
> But in any case, this should not matter these days, all we need is a
> guarantee that the word is accessed atomically by the kernel when it reads
> it, pure int alignment should be enough for that.
Yes, this is true. I used to not do get_user() on the value (the page
is pinned anyway), so it mattered.
Sorry for the confusion,
Rusty.
--
Anyone who quotes me in their sig is an idiot. -- Rusty Russell.
next prev parent reply other threads:[~2002-10-18 9:27 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-15 20:17 [patch] futex-2.5.42-A2 Ingo Molnar
2002-10-16 2:26 ` Rusty Russell
2002-10-16 8:17 ` Ingo Molnar
2002-10-18 8:39 ` Rusty Russell [this message]
-- strict thread matches above, loose matches on Subject: below --
2002-10-16 7:58 Martin Wirth
2002-10-16 8:23 ` Ingo Molnar
2002-10-16 14:32 Oleg Nesterov
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