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Re: [Qemu-devel] [PATCH] memory: Reintroduce dirty flag to optimize chan

From: Jan Kiszka
Subject: Re: [Qemu-devel] [PATCH] memory: Reintroduce dirty flag to optimize changes on disabled regions
Date: Sun, 25 Nov 2012 11:45:04 +0100
User-agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666 
On 2012-11-25 11:18, Avi Kivity wrote:
> On 11/05/2012 02:37 PM, Jan Kiszka wrote:
>>>
>>> As I noted, init and destroy cannot cause a topology update.
>>
>> Ah, right. Why are we wrapping them in transaction_begin/commit at all then?
>>
> 
> We aren't.
> 
> 
> void memory_region_destroy(MemoryRegion *mr)
> {
>     assert(QTAILQ_EMPTY(&mr->subregions));
>     assert(memory_region_transaction_depth == 0);
> 

We were talking about address_space_init/destroy.

Jan

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