Re: [Xen-devel] [PATCH 4/7] xen: rename dom0 to hardware_domain

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 18.03.14 at 22:34, Daniel De Graaf <dgdegra@xxxxxxxxxxxxx> wrote:
> This should not change any functionality other than renaming the global
> variable.  In a few cases (primarily the domain building code), a local
> variable named dom0 was created and used instead of the global to
> clarify that the domain being used in this case is actually domain 0.
> 
> Signed-off-by: Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>
> Cc: Ian Campbell <ian.campbell@xxxxxxxxxx>
> Cc: Stefano Stabellini <stefano.stabellini@xxxxxxxxxx>
> Cc: Tim Deegan <tim@xxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>

with one minor remark below.

> --- a/xen/common/domain.c
> +++ b/xen/common/domain.c
> @@ -59,7 +59,7 @@ DEFINE_RCU_READ_LOCK(domlist_read_lock);
>  static struct domain *domain_hash[DOMAIN_HASH_SIZE];
>  struct domain *domain_list;
>  
> -struct domain *dom0;
> +struct domain *hardware_domain;

I already saw that you do so in patch 6, but I think it would be more
logical to make this __read_mostly here right away rather than later
touching the same line again.

Jan


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