Re: [PATCH] mm: Check if any page in a pageblock is reservedbefore marking it MIGRATE_RESERVE

[Dave Hansen]

On Thu, 2011-04-21 at 18:34 -0700, John Stultz wrote:
> This fixes a problem where the first pageblock got marked MIGRATE_RESERVE even
> though it only had a few free pages. This in turn caused no contiguous memory
> to be reserved and frequent kswapd wakeups that emptied the caches to get more
> contiguous memory.

This looks sane to me.

Acked-by: Dave Hansen <dave@xxxxxxxxxxxxxxxxxx> 

-- Dave

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