From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Tue, 31 Dec 2013 21:33:31 +0000 (-0500)
Subject: xen/grant-table: Refactor gnttab_init
X-Git-Tag: v3.14-rc1~126^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=456847533b9ad18baa6685946a2f1e1fa9c05c34;p=pandora-kernel.git

xen/grant-table: Refactor gnttab_init

We have this odd scenario of where for PV paths we take a shortcut
but for the HVM paths we first ioremap xen_hvm_resume_frames, then
assign it to gnttab_shared.addr. This is needed because gnttab_map
uses gnttab_shared.addr.

Instead of having:
	if (pv)
		return gnttab_map
	if (hvm)
		...

	gnttab_map

Lets move the HVM part before the gnttab_map and remove the
first call to gnttab_map.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
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