Re: [PATCH v2 2/5] VSOCK: support fill data to mergeable rx buffer in host

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: jiangyiwen <jiangyiwen@xxxxxxxxxx>
Date: Wed, 12 Dec 2018 17:29:31 +0800

> diff --git a/include/uapi/linux/virtio_vsock.h b/include/uapi/linux/virtio_vsock.h
> index 1d57ed3..2292f30 100644
> --- a/include/uapi/linux/virtio_vsock.h
> +++ b/include/uapi/linux/virtio_vsock.h
> @@ -63,6 +63,11 @@ struct virtio_vsock_hdr {
>  	__le32	fwd_cnt;
>  } __attribute__((packed));
> 
> +/* It add mergeable rx buffers feature */
> +struct virtio_vsock_mrg_rxbuf_hdr {
> +	__le16  num_buffers;    /* number of mergeable rx buffers */
> +} __attribute__((packed));
> +

I know the rest of this file uses 'packed' but this attribute should
only be used if absolutely necessary as it incurs a
non-trivial performance penalty for some architectures.



[Index of Archives]     [KVM ARM]     [KVM ia64]     [KVM ppc]     [Virtualization Tools]     [Spice Development]     [Libvirt]     [Libvirt Users]     [Linux USB Devel]     [Linux Audio Users]     [Yosemite Questions]     [Linux Kernel]     [Linux SCSI]     [XFree86]

  Powered by Linux