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Re: [Xen-devel] [PATCH][RFC] Serialize scrubbing pages

To: Kouya Shimura <kouya@xxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [PATCH][RFC] Serialize scrubbing pages
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Mon, 11 Aug 2008 12:11:20 +0100
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On 11/8/08 12:07, "Kouya Shimura" <kouya@xxxxxxxxxxxxxx> wrote:

> I'm afraid that cset18305:f10d436d9a9e makes free_domheap_page freeze.
> Inner loop of page_scrub_softirq which keeps page_scrub_lock takes
> at least 1 millisec. Is it OK?
> That's why I prepare a new spinlock.

Oh, hmmm, that's a fair point. I'll put you extra lock back in, but private
to the softirq scrub function.

 Thanks,
 Keir



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