tree bffa55330a2e8e61f0cd6bcf23e45121c21bbcc7
parent 6d7083eee3bc088d1fc30eefabd6263bca40c95a
author David Vrabel <david.vrabel@citrix.com> 1346331491 +0100
committer Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> 1346877375 -0400

xen/mm: return more precise error from xen_remap_domain_range()

Callers of xen_remap_domain_range() need to know if the remap failed
because frame is currently paged out.  So they can retry the remap
later on.  Return -ENOENT in this case.

This assumes that the error codes returned by Xen are a subset of
those used by the kernel.  It is unclear if this is defined as part of
the hypercall ABI.

Acked-by: Andres Lagar-Cavilla <andres@lagarcavilla.org>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>