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Re: [Xen-devel] slow xp hibernation revisited
- To: James Harper <james.harper@xxxxxxxxxxxxxxxx>, Tim Deegan <Tim.Deegan@xxxxxxxxxx>
- From: Keir Fraser <keir.xen@xxxxxxxxx>
- Date: Sat, 04 Jun 2011 08:51:53 +0100
- Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
- Delivery-date: Sat, 04 Jun 2011 00:52:39 -0700
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- Thread-topic: [Xen-devel] slow xp hibernation revisited
On 04/06/2011 08:38, "James Harper" <james.harper@xxxxxxxxxxxxxxxx> wrote:
> Looking past the test_bit call, the next statement does another test and
> sets last_address_index to 0 and returns NULL. Is this just to ensure
> that the next access isn't just trivially accepted?
Yes, first test is on a potentially stale bucket. Second test is on a fresh
bucket.
-- Keir
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