Function my_vmalloc_sync_all

/ This function implements the logic to ensure the */ dtrace_int_page_fault_handler interrupt routine exists in every */ processes page table. System procs wont have an mm->pgd, but */ will be using the init_mm.pgd. We just need to ensure that all */ other procs can suffer a page fault once we take over the */ vector. ("The impossible to debug" bug). */ /