cvs commit: src/sys/vm vm_map.c

[Alan Cox]

alc         2007-08-30 02:32:05 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_6)
    sys/vm               vm_map.c 
  Log:
  MFC revisions 1.375-1.377
    Use pmap_enter_object() in vm_map_pmap_enter() to reduce the
    locking overhead of premapping objects.
  
  Note: It was later discovered that this change addresses a race condition
  that is discussed by vm/vm_fault.c revision 1.216.  Specifically, replacing
  pmap_enter_quick() by pmap_enter_object() addresses the race.
  
  Revision   Changes    Path
  1.366.2.4  +18 -8     src/sys/vm/vm_map.c