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
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