cvs commit: src/sys/amd64/amd64 pmap.c

Alan Cox alc at
Fri Jun 13 19:34:05 UTC 2008

alc         2008-06-13 19:33:56 UTC

  FreeBSD src repository

  Modified files:
    sys/amd64/amd64      pmap.c 
  SVN rev 179777 on 2008-06-13 19:33:56Z by alc
  Tweak the promotion test in pmap_promote_pde().  Specifically, test PG_A
  before PG_M.  This sometimes prevents unnecessary removal of write access
  from a PTE.  Overall, the net result is fewer demotions and promotion
  Revision  Changes    Path
  1.621     +4 -5      src/sys/amd64/amd64/pmap.c

More information about the cvs-src mailing list