Re: [PATCH] free swap space when (re)activating page

From: Rik van Riel
Date: Tue Feb 20 2007 - 08:29:19 EST

Christoph Lameter wrote:
On Fri, 16 Feb 2007, Rik van Riel wrote:

What do you think?

Looks good apart from one passage (which just vanished when I tried to reply, please post patches as inline text).

It was the portion that modifies shrink_active_list. Why operate
on the pagevec there? The pagevec only contains the leftovers to be released from scanning over the temporary inactive list.

Why? Because the pages that were not referenced will be
going onto the inactive list and are now a candidate for
swapping out. I don't see why we would want to reclaim
the swap space for pages that area about to be swapped
out again.

Politics is the struggle between those who want to make their country
the best in the world, and those who believe it already is. Each group
calls the other unpatriotic.
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