kib 2008-09-12 09:53:29 UTC
FreeBSD src repository
Modified files:
sys/i386/i386 sys_machdep.c vm_machdep.c
sys/i386/include proc.h
Log:
SVN rev 182961 on 2008-09-12 09:53:29Z by kib
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.
Reviewed by: jhb
MFC after: 1 week
Revision Changes Path
1.117 +8 -0 src/sys/i386/i386/sys_machdep.c
1.291 +5 -5 src/sys/i386/i386/vm_machdep.c
1.28 +1 -0 src/sys/i386/include/proc.h
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