From: Benjamin LaHaise <bcrl@redhat.com>
To: Kasper Dupont <kasperd@daimi.au.dk>
Cc: Linux Kernel <linux-kernel@vger.kernel.org>, linux-mm@redhat.com
Subject: Re: [PATCH] 2.4.19-pre8 vm86 smp locking fix
Date: Thu, 23 May 2002 17:57:08 -0400 [thread overview]
Message-ID: <20020523175708.A29031@redhat.com> (raw)
In-Reply-To: <20020523165105.A27881@redhat.com> <3CED60D7.9E5032D7@daimi.au.dk>
On Thu, May 23, 2002 at 11:36:23PM +0200, Kasper Dupont wrote:
> The pagetable access in arch/i386/kernel/vm86.c is related
> to another access in arch/i386/mm/fault.c. Did anybody
> verify that the other file does correct locking?
That should be safe: the vmalloc pgds can only be filled from the
main kernel page table. They never change afterwards, so even if
two CPUs entered that code at the same time it would be okay.
-ben
--
"You will be reincarnated as a toad; and you will be much happier."
prev parent reply other threads:[~2002-05-23 21:57 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-05-23 20:51 [PATCH] 2.4.19-pre8 vm86 smp locking fix Benjamin LaHaise
2002-05-23 21:36 ` Kasper Dupont
2002-05-23 21:57 ` Benjamin LaHaise [this message]
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