ref: 435a9a150ea5d3eae891503be0224ea9c9d29bab
parent: 859d5c9146a31c65c538ce799ed3eccd30e1e78d
author: cinap_lenrek <cinap_lenrek@felloff.net>
date: Thu Nov 16 18:15:08 EST 2017
9pc64: handle special case in fpurestore() for procexec()/procsetup() when a process does an exec, it calls procsetup() which unconditionally sets the sets the TS flag and fpstate=FPinit and fpurestore() should not revert the fpstate.