From: Andrew Morton <akpm@digeo.com>
To: dmccr@us.ibm.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Fix vmtruncate race and distributed filesystem race
Date: Thu, 12 Jun 2003 14:00:14 -0700 [thread overview]
Message-ID: <20030612140014.32b7244d.akpm@digeo.com> (raw)
In-Reply-To: <20030612134946.450e0f77.akpm@digeo.com>
Andrew Morton <akpm@digeo.com> wrote:
>
> do_no_page()
> {
> int sequence = 0;
> ...
>
> retry:
> new_page = vma->vm_ops->nopage(vma, address & PAGE_MASK, &sequence);
> ....
> if (vma->vm_ops->revalidate && vma->vm_opa->revalidate(vma, sequence))
> goto retry;
> }
And this does require that ->nopage be entered with page_table_lock held,
and that it drop it.
WARNING: multiple messages have this Message-ID (diff)
From: Andrew Morton <akpm@digeo.com>
To: dmccr@us.ibm.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Fix vmtruncate race and distributed filesystem race
Date: Thu, 12 Jun 2003 14:00:14 -0700 [thread overview]
Message-ID: <20030612140014.32b7244d.akpm@digeo.com> (raw)
In-Reply-To: <20030612134946.450e0f77.akpm@digeo.com>
Andrew Morton <akpm@digeo.com> wrote:
>
> do_no_page()
> {
> int sequence = 0;
> ...
>
> retry:
> new_page = vma->vm_ops->nopage(vma, address & PAGE_MASK, &sequence);
> ....
> if (vma->vm_ops->revalidate && vma->vm_opa->revalidate(vma, sequence))
> goto retry;
> }
And this does require that ->nopage be entered with page_table_lock held,
and that it drop it.
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next prev parent reply other threads:[~2003-06-12 20:50 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-06-12 20:16 [PATCH] Fix vmtruncate race and distributed filesystem race Dave McCracken
2003-06-12 20:49 ` Andrew Morton
2003-06-12 20:49 ` Andrew Morton
2003-06-12 21:00 ` Andrew Morton [this message]
2003-06-12 21:00 ` Andrew Morton
2003-06-12 21:08 ` Dave McCracken
2003-06-12 21:08 ` Dave McCracken
2003-06-12 21:44 ` Andrew Morton
2003-06-12 21:44 ` Andrew Morton
2003-06-12 22:56 ` Dave McCracken
2003-06-12 23:07 ` Andrew Morton
2003-06-12 23:07 ` Andrew Morton
2003-06-20 0:17 ` Andrea Arcangeli
2003-06-20 0:17 ` Andrea Arcangeli
2003-06-23 3:28 ` Paul E. McKenney
2003-06-23 3:28 ` Paul E. McKenney
2003-06-23 6:29 ` Andrea Arcangeli
2003-06-23 6:29 ` Andrea Arcangeli
2003-06-23 6:32 ` Andrew Morton
2003-06-23 6:32 ` Andrew Morton
2003-06-23 7:43 ` Andrea Arcangeli
2003-06-23 7:43 ` Andrea Arcangeli
2003-06-23 7:56 ` Andrew Morton
2003-06-23 7:56 ` Andrew Morton
2003-06-23 8:10 ` Andrea Arcangeli
2003-06-23 8:10 ` Andrea Arcangeli
2003-06-24 1:37 ` Paul E. McKenney
2003-06-24 1:37 ` Paul E. McKenney
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