Re: [Xen-devel] [PATCH v4 04/34] HYPERCALL_version_op. New hypercall mirroring XENVER_ but sane.

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 17/03/16 01:38, Konrad Rzeszutek Wilk wrote:
> +static const char *capabilities_info(ssize_t *len)
> +{
> +    static xen_capabilities_info_t cached_cap;
> +    static unsigned int cached_cap_len;
> +    static bool_t cached;
> +
> +    if ( unlikely(!cached) )
> +    {
> +        arch_get_xen_caps(&cached_cap);
> +        cached_cap_len = strlen(cached_cap) + 1;

cached = 1;

With this coherency bug fixed, Reviewed-by: Andrew Cooper
<andrew.cooper3@xxxxxxxxxx>

> +    }
> +
> +    *len = cached_cap_len;
> +    return cached_cap;
> +}


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