Re: [PATCH 1/2] mm,migration: During fork(), wait for migration toend if migration PTE is encountered

[Rik van Riel]

On 04/26/2010 06:37 PM, Mel Gorman wrote:
> From: KAMEZAWA Hiroyuki<kamezawa.hiroyu@xxxxxxxxxxxxxx>
>
> From: KAMEZAWA Hiroyuki<kamezawa.hiroyu@xxxxxxxxxxxxxx>
>
> At page migration, we replace pte with migration_entry, which has
> similar format as swap_entry and replace it with real pfn at the
> end of migration. But there is a race with fork()'s copy_page_range().

Reviewed-by: Rik van Riel <riel@xxxxxxxxxx>

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