Re: [Qemu-devel] [PATCH 0/2] deal with BDRV_BLOCK_RAW

Tue, 13 Aug 2019 07:31:57 -0700 

On 13.08.19 13:51, Kevin Wolf wrote:

[...]

> Hm... This is a mess. :-)

Just out of curiosity: Why?

Aren’t there only two things we really need from the block_status
infrastructure?

(1) Whether something is allocated in the given layer of the backing chain,

(2) Whether we know that a given range reads as zeroes.

Do we really need anything else?

Max

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