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Re: [Xen-devel] Xen spinlock questions

  • To: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
  • From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
  • Date: Tue, 12 Aug 2008 18:00:19 +0100
  • Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
  • Delivery-date: Tue, 12 Aug 2008 10:00:48 -0700
  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>
  • Thread-index: Acj8nOZcJL+GVGiQEd2pBAAWy6hiGQ==
  • Thread-topic: [Xen-devel] Xen spinlock questions

On 12/8/08 17:33, "Jeremy Fitzhardinge" <jeremy@xxxxxxxx> wrote:

>>> That seems reasonable.  In this use-case, it's quite likely that if the
>>> poll is interrupted by event delivery, on return it will find that the
>>> spinlock is now free and never re-enter the poll.
>> Attached is a new version of the patch which clears the vcpu from poll_mask
>> when it is unblocked for any reason. Jan: please can you give this one a
>> spin if you get time.
> Forgot to attach?

Sorry, attached now.

 -- Keir

Attachment: poll2.patch
Description: Binary data

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