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Re: [Qemu-devel] [PATCH 00/12] nbd improvements

From: Kevin Wolf
Subject: Re: [Qemu-devel] [PATCH 00/12] nbd improvements
Date: Wed, 14 Sep 2011 11:50:20 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:6.0.2) Gecko/20110906 Thunderbird/6.0.2

Am 08.09.2011 17:24, schrieb Paolo Bonzini:
> I find nbd quite useful to test migration, but it is limited:
> it can only do synchronous operation, it is not safe because it
> does not support flush, and it has no discard either.  qemu-nbd
> is also limited to 1MB requests, and the nbd block driver does
> not take this into account.
> Luckily, flush/FUA support is being worked out by upstream,
> and discard can also be added with the same framework (patches
> 1 to 6).
> Asynchronous support is also very similar to what sheepdog is
> already doing (patches 7 to 12).
> Paolo Bonzini (12):
>   nbd: support feature negotiation
>   nbd: sync API definitions with upstream
>   nbd: support NBD_SET_FLAGS ioctl
>   nbd: add support for NBD_CMD_FLUSH
>   nbd: add support for NBD_CMD_FLAG_FUA
>   nbd: support NBD_CMD_TRIM in the server
>   sheepdog: add coroutine_fn markers
>   add socket_set_block
>   sheepdog: move coroutine send/recv function to generic code
>   block: add bdrv_co_flush support
>   nbd: switch to asynchronous operation
>   nbd: split requests

Okay, completed the review for this series now. I think if you consider
the comments posted so far for v2 we should be good.


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