linux-kernel - Re: [patch 02/19] free swap space on swap-in/activation

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Message-ID: <Pine.LNX.4.64.0801081408280.4281@schroedinger.engr.sgi.com>
Date:	Tue, 8 Jan 2008 14:10:20 -0800 (PST)
From:	Christoph Lameter <clameter@....com>
To:	Rik van Riel <riel@...hat.com>
cc:	linux-kernel@...r.kernel.org, linux-mm@...ck.org,
	Lee Schermerhorn <Lee.Schermerhorn@...com>
Subject: Re: [patch 02/19] free swap space on swap-in/activation

On Tue, 8 Jan 2008, Rik van Riel wrote:

> Free swap cache entries when swapping in pages if vm_swap_full()
> [swap space > 1/2 used?].  Uses new pagevec to reduce pressure
> on locks.

The pagevec function would be faster if the swap removal could be batched 
inside of the locks taken in remove_exclusive_swap_page.

Reviewed-by: Christoph Lameter <clameter@....com>
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