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Re: [Qemu-block] [Qemu-stable] [PATCH v7 0/8] block: Mirror discarded se


From: Fam Zheng
Subject: Re: [Qemu-block] [Qemu-stable] [PATCH v7 0/8] block: Mirror discarded sectors
Date: Thu, 25 Jun 2015 09:02:19 +0800
User-agent: Mutt/1.5.23 (2014-03-12)

On Wed, 06/24 19:01, Paolo Bonzini wrote:
> 
> 
> On 24/06/2015 11:08, Fam Zheng wrote:
> >> Stefan,
> >>
> >> The only controversial patches are the qmp/drive-mirror ones (1-3), while
> >> patches 4-8 are still useful on their own: they fix the mentioned crash and
> >> improve iotests.
> >>
> >> Shall we merge the second half (of course none of them depend on 1-3) now 
> >> that
> >> softfreeze is approaching?
> > 
> > Stefan, would you consider applying patches 4-8?
> 
> Actually why not apply all of them?  Even if blockdev-mirror is a
> superior interface in the long run, the current behavior of drive-mirror
> can cause images to balloon up to the full size, which is bad.
> Extending drive-mirror is okay IMHO for 2.4.
> 

Before we do that, Andrey Korolyov has reported a hang issue with unmap=true,
I'll take a look at it today.

Fam



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