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

  • To: Kouya Shimura <kouya@xxxxxxxxxxxxxx>
  • From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
  • Date: Mon, 11 Aug 2008 12:11:20 +0100
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Mon, 11 Aug 2008 04:12:10 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Acj7ovtVObim0GeWEd2BigAX8io7RQ==
  • Thread-topic: [Xen-devel] [PATCH][RFC] Serialize scrubbing pages

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.


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