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| author | Akihiko Odaki <akihiko.odaki@gmail.com> | 2021-02-25 09:12:39 +0900 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2021-03-15 09:48:53 +0000 |
| commit | fb0b154c801e3447e505de420195fb7038695941 (patch) | |
| tree | a060af2e30b44fddad72be77331c4dad8ca12b61 /include | |
| parent | 6157b0e19721aadb4c7fdcfe57b2924af6144b14 (diff) | |
| download | qemu-fb0b154c801e3447e505de420195fb7038695941.zip | |
virtio-blk: Respect discard granularity
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>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20210225001239.47046-1-akihiko.odaki@gmail.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/virtio/virtio-blk.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/hw/virtio/virtio-blk.h b/include/hw/virtio/virtio-blk.h index 214ab74822..29655a406d 100644 --- a/include/hw/virtio/virtio-blk.h +++ b/include/hw/virtio/virtio-blk.h @@ -41,6 +41,7 @@ struct VirtIOBlkConf uint16_t num_queues; uint16_t queue_size; bool seg_max_adjust; + bool report_discard_granularity; uint32_t max_discard_sectors; uint32_t max_write_zeroes_sectors; bool x_enable_wce_if_config_wce; |