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Re: [PATCH v4] virtio-blk: Respect discard granularity
From: |
Stefan Hajnoczi |
Subject: |
Re: [PATCH v4] virtio-blk: Respect discard granularity |
Date: |
Mon, 8 Mar 2021 16:52:09 +0000 |
On Thu, Feb 25, 2021 at 09:12:39AM +0900, Akihiko Odaki wrote:
> Report the configured granularity for discard operation to the
> guest. If this is not set use the block size.
>
> Since until now we have ignored the configured discard granularity
> and always reported the block size, let's add
> 'report-discard-granularity' property and disable it for older
> machine types to avoid migration issues.
>
> Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
> ---
> hw/block/virtio-blk.c | 8 +++++++-
> hw/core/machine.c | 4 +++-
> include/hw/virtio/virtio-blk.h | 1 +
> 3 files changed, 11 insertions(+), 2 deletions(-)
Thanks, applied to my block tree:
https://gitlab.com/stefanha/qemu/commits/block
Stefan
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