From: Christian Borntraeger Date: Tue, 19 Aug 2014 14:19:35 +0000 (+0200) Subject: KVM: s390/mm: try a cow on read only pages for key ops X-Git-Tag: fixes-v3.17-rc4~13^2~3^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ab3f285f227fec62868037e9b1b1fd18294a83b8;p=pandora-kernel.git KVM: s390/mm: try a cow on read only pages for key ops The PFMF instruction handler blindly wrote the storage key even if the page was mapped R/O in the host. Lets try a COW before continuing and bail out in case of errors. Signed-off-by: Christian Borntraeger Reviewed-by: Dominik Dingel Cc: stable@vger.kernel.org --- Reading git-diff-tree failed