Re: [PATCH] mremap move ZERO_PAGE fix

[Nick Piggin]

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.

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