Re: [PATCH V2 1/2] xen/granttable: Support sub-page grants

From: annie li
Date: Fri Dec 09 2011 - 06:28:31 EST




On 2011-12-9 16:48, Paul Durrant wrote:
-----Original Message-----
From: Ian Campbell
Sent: 09 December 2011 08:37
To: annie li
Cc: Paul Durrant; xen-devel@xxxxxxxxxxxxxxxxxxx; linux-
kernel@xxxxxxxxxxxxxxx; konrad.wilk@xxxxxxxxxx; jeremy@xxxxxxxx;
kurt.hackel@xxxxxxxxxx
Subject: Re: [PATCH V2 1/2] xen/granttable: Support sub-page grants

On Fri, 2011-12-09 at 07:45 +0000, annie li wrote:
On 2011-12-9 13:19, annie li wrote:
Hi Paul,

#define get_free_entry() get_free_entries(1)
Is this necessary? Maybe you defined this to keep consistence
with
put_free_entry(ref)?
But other functions such as gnttab_grant_foreign_transfer and
gnttab_grant_foreign_access all call get_free_entries(1). Maybe
it
is better to keep initial get_free_entries(1) code?
Another approach is doing those work in a separate patch --
changing
get_free_entries to get_free_entry in following 4 functions:
I think you shouldn't get too bogged down in get_free_entry() vs
get_free_entries(1) for the purposes of this patch series.


Annie,

Yes, don't worry about get_free_entry(). I only defined it for the sake of symmetry in the code I posted.
OK, will keep get_free_entries(1) unchanged.

Thanks
Annie
Paul
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