K 10
svn:author
V 3
alc
K 8
svn:date
V 27
2002-07-31T18:46:47.000000Z
K 7
svn:log
V 577
 o Setting PG_MAPPED and PG_WRITEABLE on pages that are mapped and unmapped
   by pmap_qenter() and pmap_qremove() is pointless.  In fact, it probably
   leads to unnecessary pmap_page_protect() calls if one of these pages is
   paged out after unwiring.

Note: setting PG_MAPPED asserts that the page's pv list may be
non-empty.  Since checking the status of the page's pv list isn't any
harder than checking this flag, the flag should probably be eliminated.
Alternatively, PG_MAPPED could be set by pmap_enter() exclusively
rather than various places throughout the kernel.

END