cvs commit: src/sys/amd64/amd64 pmap.c src/sys/i386/i386 pmap.c

[Alan Cox]

alc         2004-09-18 04:27:00 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_5)
    sys/amd64/amd64      pmap.c 
    sys/i386/i386        pmap.c 
  Log:
  MFC
   Use atomic ops in pmap_clear_ptes() and pmap_protect() to prevent the loss
   of a page modified (PG_M) bit in a race between processors.
  
  Approved by: re (scottl)
  PR: i386/61852
  
  Revision   Changes    Path
  1.491.2.2  +14 -10    src/sys/amd64/amd64/pmap.c
  1.494.2.4  +26 -10    src/sys/i386/i386/pmap.c