From: Marcelo Tosatti <mtosatti@redhat.com>
Date: Fri, 22 Oct 2010 16:18:18 +0000 (-0200)
Subject: KVM: propagate fault r/w information to gup(), allow read-only memory
X-Git-Tag: v2.6.38-rc1~244^2~117
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=612819c3c6e67bac8fceaa7cc402f13b1b63f7e4;p=pandora-kernel.git

KVM: propagate fault r/w information to gup(), allow read-only memory

As suggested by Andrea, pass r/w error code to gup(), upgrading read fault
to writable if host pte allows it.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
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