linux-kernel - Re: [PATCH 1/2] xen/granttable: Support sub-page grants

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Message-ID: <4EDF44F8.8060206@oracle.com>
Date:	Wed, 07 Dec 2011 18:50:32 +0800
From:	ANNIE LI <annie.li@...cle.com>
To:	Ian Campbell <Ian.Campbell@...rix.com>
CC:	Paul Durrant <Paul.Durrant@...rix.com>,
	"xen-devel@...ts.xensource.com" <xen-devel@...ts.xensource.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"konrad.wilk@...cle.com" <konrad.wilk@...cle.com>,
	"jeremy@...p.org" <jeremy@...p.org>,
	"kurt.hackel@...cle.com" <kurt.hackel@...cle.com>
Subject: Re: [PATCH 1/2] xen/granttable: Support sub-page grants


> The existing convention seems to be for _ref to be a suffix, although
> it's only actually used on the end_*_ref ones.
> +       int (*end_foreign_access_ref)(grant_ref_t, int);
> +       unsigned long (*end_foreign_transfer_ref)(grant_ref_t);
>
> Also it occurs to me that access_* sounds like something which uses a
> ref rather than something which sets one up. The existing hook to setup
> a normal grant is called "update_entry". Perhaps
> update_{subpage,transitive}_entry?
Yes, you are right.
Just like the existing code:
gnttab_grant_foreign_access   VS   gnttab_grant_foreign_access_subpage
update_entry in gnttab_grant_foreign_access_ref  VS  
update_{subpage,transitive}_entry in 
gnttab_grant_foreign_access_{subpage,trans}_ref

Thanks
Annie
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