Re: [Xen-devel] [PATCH for-xen-4.5] libxl: Allow copying smaller bitmap into a larger one

[Dario Faggioli <dario.faggioli@xxxxxxxxxx>]

On Mon, 2014-11-24 at 10:48 -0500, Boris Ostrovsky wrote:
> On 11/24/2014 05:47 AM, Wei Liu wrote:

> >>
> >> The partial copy function should explicitly zero-out all remaining bits.
> 
> I actually thought that partial copy function should do just that --- 
> copy bits that it has and leave others unchanged. The caller, if desires 
> so, should have cleared the mask prior to the call. (This is for the 
> case when destination is larger than source, of course).
> 
Agreed.

Anyway, AFAIU Wei's proposal, he's saying that this new _copy_partial()
function can be an internal one, i.e., not part of the public  API, or
am I wrong, Wei?

If yes, I agree with that.

This leaves the question of whether we should change the behavior of the
publicly exposed libxl_bitmap_copy(), which I'm still not sure about,
but I guess, if we keep this internal, we can defer thinking to that to
some other period not in between RCs?

Thanks and Regards,
Dario

-- 
<<This happens because I choose it to happen!>> (Raistlin Majere)
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Dario Faggioli, Ph.D, http://about.me/dario.faggioli
Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)

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