K 10
svn:author
V 3
kan
K 8
svn:date
V 27
2003-11-02T04:52:53.000000Z
K 7
svn:log
V 346
Take care not to call vput if thread used in corresponding vget
wasn't curthread, i.e. when we receive a thread pointer to use
as a function argument. Use VOP_UNLOCK/vrele in these cases.

The only case there td != curthread known at the moment is
boot() calling sync with thread0 pointer.

This fixes the panic on shutdown people have reported.

END