K 10 svn:author V 4 neel K 8 svn:date V 27 2013-10-02T22:45:12.129574Z K 7 svn:log V 249 In the A/D bit emulation handler the 'pvh_global_lock' needs to be acquired only if the mapping is eligible for superpage promotion. This avoids having to unconditionally acquire the 'pvh_global_lock' on every nested page fault. Suggested by: kib@ END