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Re: [Qemu-devel] [PATCH] Introduce cache images for the QCOW2 format


From: Alex Bligh
Subject: Re: [Qemu-devel] [PATCH] Introduce cache images for the QCOW2 format
Date: Wed, 14 Aug 2013 13:03:48 +0100

On 14 Aug 2013, at 12:52, Fam Zheng wrote:

> Yes, this one sounds good to have. VMDK and VHDX have this kind of
> backing file status validation.

... though I'd prefer something safer than looking at mtime, for
instance a sequence number that is incremented prior to any
bdrv_close if a write has been done since bdrv_open.

-- 
Alex Bligh







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