From: Rik van Riel <riel@conectiva.com.br>
To: Andrew Morton <akpm@zip.com.au>
Cc: linux-kernel@vger.kernel.org, <linux-mm@kvack.org>
Subject: Re: [RFC][PATCH] iowait statistics
Date: Tue, 14 May 2002 09:30:12 -0300 (BRT) [thread overview]
Message-ID: <Pine.LNX.4.44L.0205140929230.32261-100000@imladris.surriel.com> (raw)
In-Reply-To: <3CE073FA.57DAC578@zip.com.au>
On Mon, 13 May 2002, Andrew Morton wrote:
> > ===== fs/buffer.c 1.64 vs edited =====
> > --- 1.64/fs/buffer.c Mon May 13 19:04:59 2002
> > +++ edited/fs/buffer.c Mon May 13 19:16:57 2002
> > @@ -156,8 +156,10 @@
> > get_bh(bh);
> > add_wait_queue(&bh->b_wait, &wait);
> > do {
> > + atomic_inc(&nr_iowait_tasks);
> > run_task_queue(&tq_disk);
> > set_task_state(tsk, TASK_UNINTERRUPTIBLE);
> > + atomic_dec(&nr_iowait_tasks);
> > if (!buffer_locked(bh))
> > break;
> > schedule();
>
> Shouldn't the atomic_inc cover the schedule()?
DOH, indeed. Placed in the wrong place ;/
Rik
--
Bravely reimplemented by the knights who say "NIH".
http://www.surriel.com/ http://distro.conectiva.com/
next prev parent reply other threads:[~2002-05-14 12:30 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-14 1:19 [RFC][PATCH] iowait statistics Rik van Riel
2002-05-14 2:18 ` Andrew Morton
2002-05-14 12:30 ` Rik van Riel [this message]
2002-05-15 17:02 ` Denis Vlasenko
2002-05-16 7:41 ` Andrew Morton
2002-05-16 14:04 ` Denis Vlasenko
2002-05-14 15:39 ` William Lee Irwin III
2002-05-14 16:36 ` Rik van Riel
2002-05-14 16:54 ` William Lee Irwin III
2002-05-15 17:17 ` Denis Vlasenko
2002-05-15 14:03 ` Rik van Riel
2002-05-15 20:17 ` Denis Vlasenko
2002-05-15 16:13 ` Rik van Riel
2002-05-15 16:21 ` William Lee Irwin III
2002-05-15 17:00 ` William Lee Irwin III
2002-05-15 18:16 ` Bill Davidsen
2002-05-15 18:30 ` William Lee Irwin III
2002-05-15 18:33 ` Rik van Riel
2002-05-15 18:46 ` William Lee Irwin III
2002-05-15 19:00 ` Rik van Riel
2002-05-16 11:42 ` Denis Vlasenko
2002-05-16 11:14 ` Denis Vlasenko
2002-05-15 15:15 ` Bill Davidsen
2002-05-16 10:58 ` Denis Vlasenko
2002-05-14 18:19 ` Martin J. Bligh
2002-05-15 1:31 ` Bill Davidsen
2002-05-15 1:41 ` William Lee Irwin III
2002-05-15 14:39 ` Bill Davidsen
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