Re: [PATCH 2/3] mm, vmscan: Release/reacquire lru_lock on pgdat change

From: Johannes Weiner
Date: Mon Jul 18 2016 - 12:13:59 EST

On Mon, Jul 18, 2016 at 03:50:25PM +0100, Mel Gorman wrote:
> With node-lru, the locking is based on the pgdat. As Minchan pointed
> out, there is an opportunity to reduce LRU lock release/acquire in
> check_move_unevictable_pages by only changing lock on a pgdat change.
> Signed-off-by: Mel Gorman <mgorman@xxxxxxxxxxxxxxxxxxx>

Acked-by: Johannes Weiner <hannes@xxxxxxxxxxx>