From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Date: Fri, 3 Jan 2014 19:08:39 +0000 (-0500)
Subject: xen/mmu: Cleanup xen_pagetable_p2m_copy a bit.
X-Git-Tag: v3.14-rc1~126^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b621e157ba48fb7d36945405de68c5fa25e7b73c;p=pandora-kernel.git

xen/mmu: Cleanup xen_pagetable_p2m_copy a bit.

Stefano noticed that the code runs only under 64-bit so
the comments about 32-bit are pointless.

Also we change the condition for xen_revector_p2m_tree
returning the same value (because it could not allocate
a swath of space to put the new P2M in) or it had been
called once already. In such we return early from the
function.

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