Re: [PATCH] mm: Check if PTE is already allocated during page fault

From: Rik van Riel
Date: Fri Apr 15 2011 - 09:23:30 EST

On 04/15/2011 06:12 AM, Mel Gorman wrote:

This patch simply re-adds the check normally done by pte_alloc_map to
check if the PTE needs to be allocated before taking the page table
lock. The effect is noticable in page_test from aim9.

Reported-by: Raz Ben Yehuda<raziebe@xxxxxxxxx>
Signed-off-by: Mel Gorman<mgorman@xxxxxxx>

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

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