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Re: [Xen-devel] [PATCH v2 01/13] grant_table: use term 'mfn' for machine frame numbers...


  • To: Paul Durrant <paul.durrant@xxxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • From: George Dunlap <george.dunlap@xxxxxxxxxx>
  • Date: Tue, 10 Jul 2018 14:19:40 +0100
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  • Cc: Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wei.liu2@xxxxxxxxxx>, George Dunlap <George.Dunlap@xxxxxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, Ian Jackson <ian.jackson@xxxxxxxxxxxxx>, Tim Deegan <tim@xxxxxxx>, Julien Grall <julien.grall@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxx>
  • Delivery-date: Tue, 10 Jul 2018 13:19:53 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
  • Openpgp: preference=signencrypt

On 07/07/2018 12:05 PM, Paul Durrant wrote:
> ...rather than more ambiguous term 'frame'.
> 
> There are many places in the grant table code that use a variable or
> field name '.*frame' to refer to a quantity that is strictly an MFN, and
> even has type mfn_t.
> This patch is a purely cosmetic patch that substitutes 'frame' with 'mfn'
> in those places to make the purpose of the variable or field name more
> obvious.
> 
> Signed-off-by: Paul Durrant <paul.durrant@xxxxxxxxxx>

Looks good.  One minor comment...

> @@ -2320,7 +2320,7 @@ release_grant_for_copy(
>      struct grant_table *rgt = rd->grant_table;
>      grant_entry_header_t *sha;
>      struct active_grant_entry *act;
> -    mfn_t r_frame;
> +    mfn_t mfn;
>      uint16_t *status;
>      grant_ref_t trans_gref;
>      struct domain *td;

If you end up respinning this, you might consider making this 'rmfn' or
somethign, just because everything in this function seems to have the
'r' prefix.

But either way:

Reviewed-by: George Dunlap <george.dunlap@xxxxxxxxxx>

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