From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Hugh Dickins <hugh@veritas.com>
Cc: Andrew Morton <akpm@osdl.org>, linux-kernel@vger.kernel.org
Subject: Re: [PATCH] mremap move ZERO_PAGE fix
Date: Sun, 25 Sep 2005 11:21:32 +1000 [thread overview]
Message-ID: <4335FB9C.50602@yahoo.com.au> (raw)
In-Reply-To: <Pine.LNX.4.61.0509241127420.11579@goblin.wat.veritas.com>
Hugh Dickins wrote:
> Fix nasty little bug we've missed in Nick's mremap move ZERO_PAGE patch.
> The "pte" at that point may be a swap entry or a pte_file entry: we must
> check pte_present before perhaps corrupting such an entry.
>
> Patch below against 2.6.14-rc2-mm1, but the same bug is in 2.6.14-rc2's
> mm/mremap.c, and more dangerous there since it's affecting all arches:
> I think the safest course is to send Nick's patch and Yoichi's build fix
> and this fix (build tested) on to Linus - so only MIPS can be affected.
>
Thanks Hugh. I agree with your proposed merge plan.
--
SUSE Labs, Novell Inc.
Send instant messages to your online friends http://au.messenger.yahoo.com
prev parent reply other threads:[~2005-09-25 1:20 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-24 10:30 [PATCH] mremap move ZERO_PAGE fix Hugh Dickins
2005-09-25 1:21 ` Nick Piggin [this message]
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