From: Christian Borntraeger Date: Mon, 6 May 2013 19:44:36 +0000 (+0200) Subject: s390: disable pfmf for clear page instruction X-Git-Tag: v3.10-rc3~36^2~6 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=617e164c35c94c936e3632b387d6dbb3d80c2c02;p=pandora-kernel.git s390: disable pfmf for clear page instruction Wit the introduction of large pages Linux also used pfmf for page clearing. The current implementation is not ideal, though: - currently we set usage intent=0, but cleared pages are often used directly after the clearing - z/VM does not yet provide EDAT - KVM does have to intercept PFMF even for resident pages Lets just the mvcl loop in all cases until we have a well defined pattern were pfmf is besser. Signed-off-by: Christian Borntraeger Signed-off-by: Martin Schwidefsky --- Reading git-diff-tree failed