Re: [PATCH 7/7] mm: vmscan: Immediately reclaim end-of-LRU dirty pages when writeback completes

Rik van Riel
2011-08-12T15:27:43Z

On 08/10/2011 06:47 AM, Mel Gorman wrote:
> When direct reclaim encounters a dirty page, it gets recycled around
> the LRU for another cycle. This patch marks the page PageReclaim
> similar to deactivate_page() so that the page gets reclaimed almost
> immediately after the page gets cleaned. This is to avoid reclaiming
> clean pages that are younger than a dirty page encountered at the
> end of the LRU that might have been something like a use-once page.
>
> Signed-off-by: Mel Gorman<mgorman@suse.de>
> Acked-by: Johannes Weiner<jweiner@redhat.com>

I'm thinking we may need to add some code to
ClearPageReclaim to mark_page_accessed, but
that would be completely independent of these
patches, so ...

Reviewed-by: Rik van Riel <riel@redhat.com>

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