Konstantin Belousov 9430f833ca Only lock pvh_global_lock read-only for pmap_page_wired_mappings(),
pmap_is_modified() and pmap_is_referenced(), same as it was done for
pmap_ts_referenced().

Consolidate identical code for pmap_is_modified() and
pmap_is_referenced() into helper pmap_page_test_mappings().

Reviewed by:	alc
Tested by:	pho (previous version)
Sponsored by:	The FreeBSD Foundation
2013-09-06 16:53:48 +00:00
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