Re: [PATCH 7/8] mm: vmscan: Immediately reclaim end-of-LRU dirty pages when writeback completes

Mel Gorman
2011-08-03T13:57:49Z

On Wed, Aug 03, 2011 at 01:26:30PM +0200, Johannes Weiner wrote:
> On Thu, Jul 21, 2011 at 05:28:49PM +0100, 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>
>
> Apart from the naming of the counter (I like nr_reclaim_preferred),
>

At the moment it's NR_VMSCAN_IMMEDIATE and the name visible in
/proc/vmstat is nr_vmscan_immediate_reclaim

> Acked-by: Johannes Weiner <jweiner@redhat.com>

Thanks.

--
Mel Gorman
SUSE Labs