在 2022/3/11 下午11:28, Suwan Kim 写道:
diff --git a/include/uapi/linux/virtio_blk.h b/include/uapi/linux/virtio_blk.h
index d888f013d9ff..3fcaf937afe1 100644
--- a/include/uapi/linux/virtio_blk.h
+++ b/include/uapi/linux/virtio_blk.h
@@ -119,8 +119,9 @@ struct virtio_blk_config {
* deallocation of one or more of the sectors.
*/
__u8 write_zeroes_may_unmap;
+ __u8 unused1;
- __u8 unused1[3];
+ __virtio16 num_poll_queues;
} __attribute__((packed));
This looks like a implementation specific (virtio-blk-pci) optimization,
how about other implementation like vhost-user-blk?
Thanks
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