Re: [Nbd] [Qemu-devel] [PATCH v3] doc: Add NBD_CMD_BLOCK_STATUS extension
- To: Eric Blake <eblake@...696...>
- Cc: "nbd-general@lists.sourceforge.net" <nbd-general@lists.sourceforge.net>, Kevin Wolf <kwolf@...696...>, Vladimir Sementsov-Ogievskiy <vsementsov@...2319...>, "qemu-devel@...530..." <qemu-devel@...530...>, Paolo Bonzini <pbonzini@...696...>, Pavel Borzenkov <pborzenkov@...2319...>, "Stefan stefanha@...2321... com" <stefanha@...696...>, "Denis V. Lunev" <den@...2317...>, Markus Pargmann <mpa@...1897...>, Wouter Verhelst <w@...112...>, John Snow <jsnow@...696...>
- Subject: Re: [Nbd] [Qemu-devel] [PATCH v3] doc: Add NBD_CMD_BLOCK_STATUS extension
- From: Alex Bligh <alex@...872...>
- Date: Thu, 8 Dec 2016 16:03:51 +0000
- Message-id: <1E99821C-61FA-422E-8E9A-32E8E966A05E@...872...>
- In-reply-to: <d0ce8e00-5875-d3c9-f040-b9d5daebbb2c@...696...>
- References: <1480073296-6931-1-git-send-email-vsementsov@...2319...> <F075D231-9CBE-437C-B9F0-0DE2AB98007B@...872...> <ed5f8fc7-c7c8-c678-668f-17047dbe0b23@...696...> <4329D951-F1D0-4B0B-99AB-9F1B7D3DA99B@...872...> <C9D4A99C-1E81-4144-976B-289FF959430B@...872...> <20161208094436.7o4rm54ob2xh4eui@...3...> <42260F0E-9D94-44D4-A5FF-EE8F5962ADA0@...872...> <d0ce8e00-5875-d3c9-f040-b9d5daebbb2c@...696...>
> On 8 Dec 2016, at 15:59, Eric Blake <eblake@...696...> wrote:
>
> We should use similar wording to whatever we already say about what a
> client would see when reading data cleared by NBD_CMD_TRIM. After all,
> the status of STATE_HOLE set and STATE_ZERO clear is what you logically
> get when TRIM cannot guarantee reads-as-zero.
Yes. It was actually exactly that discussion I was trying to remember.
--
Alex Bligh
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