mirror of https://lore.kernel.org/lkml/
 help / color / mirror / Atom feed
From: David Howells <dhowells@redhat.com>
To: Peter Zijlstra <peterz@infradead.org>
Cc: dhowells@redhat.com, Miklos Szeredi <miklos@szeredi.hu>,
	"Paul E. McKenney" <paulmck@linux.vnet.ibm.com>,
	linux-kernel@vger.kernel.org, linux-arch@vger.kernel.org
Subject: Re: memory barrier question
Date: Thu, 16 Sep 2010 18:59:14 +0100	[thread overview]
Message-ID: <18367.1284659954@redhat.com> (raw)
In-Reply-To: <1284653939.2275.578.camel@laptop>

Peter Zijlstra <peterz@infradead.org> wrote:

> Therefore:
> 
>   A = 5
>   LOCK
> 
>   UNLOCK
>   B = 6
> 
> May be observed as:
> 
>    LOCK
>    B = 6
>    A = 5
>    UNLOCK

Yeah, you're right.

David

  parent reply	other threads:[~2010-09-16 17:59 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-09-15 14:36 Miklos Szeredi
2010-09-15 19:12 ` Rafael J. Wysocki
2010-09-16 11:55 ` David Howells
2010-09-16 13:42   ` Miklos Szeredi
2010-09-16 14:30   ` David Howells
2010-09-16 15:03     ` Paul E. McKenney
2010-09-16 16:06       ` Miklos Szeredi
2010-09-16 16:37         ` Paul E. McKenney
2010-09-16 16:56           ` Miklos Szeredi
2010-09-16 17:09             ` James Bottomley
2010-09-16 17:17               ` Miklos Szeredi
2010-09-16 17:40                 ` James Bottomley
2010-09-17 21:49                 ` Benjamin Herrenschmidt
2010-09-17 23:12                   ` Paul E. McKenney
2010-09-19  2:47                     ` Benjamin Herrenschmidt
2010-09-19 15:26                       ` Paul E. McKenney
2010-09-19 20:15                         ` Miklos Szeredi
2010-09-19 21:59                           ` Paul E. McKenney
2010-09-20  0:58                             ` James Bottomley
2010-09-20  1:29                               ` Paul E. McKenney
2010-09-20 16:01                                 ` Miklos Szeredi
2010-09-20 18:25                                   ` Paul E. McKenney
2010-09-20 18:57                                     ` Paul E. McKenney
2010-09-20 20:26                                     ` Michael Cree
2010-09-20 20:40                                       ` Paul E. McKenney
2010-09-21 14:59                                         ` Paul E. McKenney
2010-09-22 18:41                                           ` Paul E. McKenney
2010-09-18  1:12                   ` Alan Cox
2010-09-16 16:50         ` Jamie Lokier
2010-09-16 16:18   ` Peter Zijlstra
2010-09-16 17:59   ` David Howells [this message]
2010-09-20 10:34 George Spelvin
2010-10-29 13:23 Memory " Tetsuo Handa
2010-10-29 15:09 ` Paul E. McKenney
2010-10-30  5:48   ` Tetsuo Handa
2010-10-30  6:11     ` Eric Dumazet
2010-10-30 12:40       ` Tetsuo Handa

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=18367.1284659954@redhat.com \
    --to=dhowells@redhat.com \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=miklos@szeredi.hu \
    --cc=paulmck@linux.vnet.ibm.com \
    --cc=peterz@infradead.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox

Powered by JetHome