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5f3e4247
2020 Sep 15
0
[PATCH] vhost: reduce stack usage in log_used
...gt; static int log_used(struct vhost_virtqueue *vq, u64 used_offset, u64 len)
> {
> - struct iovec iov[64];
> + struct iovec *iov = vq->log_iov;
> int i, ret;
>
> if (!vq->iotlb)
> diff --git a/drivers/vhost/vhost.h b/drivers/vhost/vhost.h
> index 9032d3c..5fe4b47
> --- a/drivers/vhost/vhost.h
> +++ b/drivers/vhost/vhost.h
> @@ -123,6 +123,7 @@ struct vhost_virtqueue {
> /* Log write descriptors */
> void __user *log_base;
> struct vhost_log *log;
> + struct iovec log_iov[64];
>
> /* Ring endianness. Defaults to lega...