cvs commit: src/sys/i386/i386 sys_machdep.c vm_machdep.c src/sys/i386/include proc.h

[Konstantin Belousov]

kib         2008-09-23 17:41:15 UTC

  FreeBSD src repository

  Modified files:        (Branch: RELENG_7)
    sys/i386/i386        sys_machdep.c vm_machdep.c 
    sys/i386/include     proc.h 
  Log:
  SVN rev 183311 on 2008-09-23 17:41:15Z by kib
  
  MFC r182961:
  When doing rfork(0), i.e. separating curproc VM from any other user of
  the same vmspace, decrement the reference count of the shared LDT instead
  of a newly-made copy. Code factually removed LDT from the process that
  did rfork(0).
  
  Introduce user_ldt_deref() function that does decrement of refcount for
  the struct proc_ldt, and call it in the rfork(0) case on the shared LDT.
  
  Approved by:    re (kensmith)
  
  Revision   Changes    Path
  1.112.2.3  +8 -0      src/sys/i386/i386/sys_machdep.c
  1.283.2.4  +5 -5      src/sys/i386/i386/vm_machdep.c
  1.26.2.2   +1 -0      src/sys/i386/include/proc.h