[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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

From: Vladimir Sementsov-Ogievskiy
Subject: Re: [Qemu-block] [PATCH 0/2] deal with BDRV_BLOCK_RAW
Date: Tue, 13 Aug 2019 14:46:50 +0000

13.08.2019 17:31, Max Reitz wrote:
> 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?

qemu-img map?

1. We need to fix the bug somehow
2. We need to fix comment about different block-status flags, as it really
lacks information of what actually "DATA" means (together with *file).
And what finally means "allocated", can you define it precisely?
3. Fix nbd-server to be closer to NBD spec about block-status

I made several tries to imagine [1] and [2] but never succeeded..

Best regards,

reply via email to

[Prev in Thread] Current Thread [Next in Thread]