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[Xen-devel] Re: [PATCH] mem_sharing: fix race condition of nominate and

To: Jui-Hao Chiang <juihaochiang@xxxxxxxxx>
Subject: [Xen-devel] Re: [PATCH] mem_sharing: fix race condition of nominate and unshare
From: Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Date: Thu, 13 Jan 2011 15:53:44 +0000
Cc: MaoXiaoyun <tinnycloud@xxxxxxxxxxx>, xen devel <xen-devel@xxxxxxxxxxxxxxxxxxx>
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At 15:24 +0000 on 13 Jan (1294932299), Jui-Hao Chiang wrote:
> After testing the code with your patch, it's ok for the mem_sharing.
> And as the argument says, when (type_count & PGT_count_mask) is zero,
> it's ok for changing the page type. (even when there is a old value in
> type_count & PGT_type_mask, e.g., ti=8400000000000000)

Great, thanks.  I've applied that change as cset 22745:32b7a4f2d399
of xen-unstable and the EPT locking fix as 22744:b01ef59c8c80 .
They're in the staging tree and will hit the public tree the next time
the automatic regression tests pass. 

Cheers,

Tim.

-- 
Tim Deegan <Tim.Deegan@xxxxxxxxxx>
Principal Software Engineer, Xen Platform Team
Citrix Systems UK Ltd.  (Company #02937203, SL9 0BG)

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