Re: [Xen-devel] [PATCH v3 07/13] xen/arm: compile and initialize vmap

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Fri, 26 Apr 2013, Ian Campbell wrote:
> > > Isn't it a bug for the third to be already mapped? that suggests
> > > something is overwriting the mapping, does vmap do that?
> > 
> > I don't know, but I thought that this function should be able to handle
> > that case.
> 
> At the vmap layer I think it must always be a bug for it to be trying to
> replace a mapping, the API simply doesn't allow for the possibility.

Empirical tests give evidence to the contrary: vmap does replace
mappings.

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