From: Davide Libenzi <davidel@xmailserver.org>
To: Alexander Viro <viro@math.psu.edu>
Cc: Linus Torvalds <torvalds@transmeta.com>,
Andrea Arcangeli <andrea@suse.de>, Jeff Dike <jdike@karaya.com>,
user-mode-linux-user@lists.sourceforge.net,
linux-kernel@vger.kernel.org, Jan Hubicka <jh@suse.cz>,
Jonathan Lundell <jlundell@pobox.com>
Subject: Re: user-mode port 0.44-2.4.7
Date: Tue, 24 Jul 2001 09:01:37 -0700 (PDT) [thread overview]
Message-ID: <XFMail.20010724090137.davidel@xmailserver.org> (raw)
In-Reply-To: <Pine.GSO.4.21.0107241141500.25475-100000@weyl.math.psu.edu>
On 24-Jul-2001 Alexander Viro wrote:
>
>
> On Tue, 24 Jul 2001, Davide Libenzi wrote:
>
>> One more thing, with volatile you specify it one time ( declaration time ),
>> while with barrier() you've to spread inside the code tons of such macro
>> everywhere you touch the variable.
>
> That's the whole point, damnit. Syntax (or semantics) sugar is a Bad Thing(tm).
> If your algorithm depends on something in a nontrivial way - _spell_ _it_ _out_.
I would not call, to pretend the compiler to issue memory loads every time it access
a variable, a nontrivial way.
It sounds pretty clear to me.
- Davide
next prev parent reply other threads:[~2001-07-24 15:58 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-07-23 5:08 user-mode port 0.44-2.4.7 Jeff Dike
2001-07-23 15:56 ` Andrea Arcangeli
2001-07-23 15:59 ` Andrea Arcangeli
2001-07-23 16:17 ` Andrea Arcangeli
2001-07-23 16:51 ` Andrea Arcangeli
2001-07-23 16:33 ` Linus Torvalds
2001-07-23 16:45 ` Andrea Arcangeli
2001-07-23 17:32 ` Linus Torvalds
2001-07-23 17:50 ` Andrea Arcangeli
2001-07-23 18:11 ` Linus Torvalds
2001-07-23 18:27 ` Andrea Arcangeli
2001-07-23 20:00 ` Linus Torvalds
2001-07-23 20:15 ` Jonathan Lundell
2001-07-23 22:51 ` Linus Torvalds
2001-07-24 3:45 ` Jonathan Lundell
2001-07-24 15:41 ` Davide Libenzi
2001-07-24 15:46 ` Alexander Viro
2001-07-24 16:01 ` Davide Libenzi [this message]
2001-07-24 16:08 ` Alexander Viro
2001-07-24 16:52 ` Davide Libenzi
2001-07-24 16:59 ` Linus Torvalds
2001-07-24 17:31 ` Davide Libenzi
2001-07-24 17:38 ` Linus Torvalds
2001-07-24 18:07 ` Anton Altaparmakov
2001-07-23 20:44 ` Chris Friesen
2001-07-23 21:11 ` Andrea Arcangeli
2001-07-23 21:50 ` Richard Gooch
2001-07-23 22:09 ` Andrea Arcangeli
2001-07-23 13:20 ` Rob Landley
2001-07-23 22:27 ` Andrea Arcangeli
2001-07-23 17:50 ` Rob Landley
2001-07-23 23:47 ` Richard Gooch
2001-07-24 0:04 ` Andrea Arcangeli
2001-07-24 9:02 ` Jan Hubicka
2001-07-24 15:35 ` Linus Torvalds
2001-07-24 16:04 ` Linus Torvalds
2001-07-25 22:49 ` Andrea Arcangeli
2001-07-25 23:16 ` Linus Torvalds
2001-07-25 23:37 ` Chris Friesen
2001-07-26 18:28 ` Jan Hubicka
2001-07-26 18:35 ` Alan Cox
2001-07-23 22:53 ` Linus Torvalds
2001-07-23 23:13 ` Alan Cox
2001-07-23 20:25 ` Jeff Dike
[not found] <no.id>
2001-07-23 20:57 ` Alan Cox
2001-07-23 21:14 ` Chris Friesen
2001-07-25 19:12 ` Alan Cox
2001-07-25 23:49 ` Alan Cox
-- strict thread matches above, loose matches on Subject: below --
2001-07-25 19:03 James W. Lake
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