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Re: [Qemu-devel] [PATCH v2 08/10] block: Allow changing 'discard' on reo

From: Max Reitz
Subject: Re: [Qemu-devel] [PATCH v2 08/10] block: Allow changing 'discard' on reopen
Date: Wed, 5 Sep 2018 14:50:22 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1

On 2018-09-03 16:34, Alberto Garcia wrote:
> 'discard' is one of the basic BlockdevOptions available for all
> drivers, but it's not handled by bdrv_reopen_prepare() so any attempt
> to change it results in an error:
>    (qemu) qemu-io virtio0 "reopen -o discard=on"
>    Cannot change the option 'discard'
> Since there's no reason why we shouldn't allow changing it and the
> implementation is simple let's just do it.
> Signed-off-by: Alberto Garcia <address@hidden>
> Cc: Max Reitz <address@hidden>
> ---
>  block.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)

Reviewed-by: Max Reitz <address@hidden>

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