From: David Vrabel <david.vrabel@citrix.com>
To: Jan Beulich <JBeulich@suse.com>
Cc: xen-devel <xen-devel@lists.xenproject.org>,
Boris Ostrovsky <boris.ostrovsky@oracle.com>
Subject: Re: blkif discard attributes
Date: Thu, 3 Jul 2014 11:17:29 +0100 [thread overview]
Message-ID: <53B52DB9.9000301@citrix.com> (raw)
In-Reply-To: <53B547BC0200007800020148@mail.emea.novell.com>
On 03/07/14 11:08, Jan Beulich wrote:
>>>> On 03.07.14 at 11:43, <david.vrabel@citrix.com> wrote:
>> On 03/07/14 08:59, Jan Beulich wrote:
>>> discard_zeroes_data also be communicated from backend to frontend?
>>
>> Perhaps. But how would you handle a guest that used to have
>> discard_zeroes_data but is restored with different storage that no
>> longer has this property?
>
> Don't these attributes gets re-evaluated after restore anyway?
I don't see how that helps. What if a discard request was submitted
before the suspend, expecting the discard to zero and on restore the
requests is queued for the new backend which then might not zero.
David
next prev parent reply other threads:[~2014-07-03 10:17 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-03 7:59 blkif discard attributes Jan Beulich
2014-07-03 9:43 ` David Vrabel
2014-07-03 10:08 ` Jan Beulich
2014-07-03 10:17 ` David Vrabel [this message]
2014-07-03 10:24 ` Jan Beulich
2014-07-07 18:40 ` Konrad Rzeszutek Wilk
2014-07-14 9:07 ` Ian Campbell
2014-07-15 16:48 ` Konrad Rzeszutek Wilk
2014-07-16 8:29 ` Ian Campbell
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