void init_vm(ulong addr, ulong size)
{
for (int i = 0; i < MAX_LINEAR_HOLE - 1; i++) {
linear_holes[i].pnext = &linear_holes[i + 1];
}
linear_holes[MAX_LINEAR_HOLE - 1].pnext = 0;
pfreeh = linear_holes;
phead = 0;
init_spinlock(&spin_vm);
free_linear(addr, size);
}
void
_spinlock(spinlock_t *lck)
{
struct spinlock_extra *_extra;
if (!__isthreaded)
PANIC("Spinlock called when not threaded.");
if (!initialized)
PANIC("Spinlocks not initialized.");
if (lck->fname == NULL)
init_spinlock(lck);
_extra = (struct spinlock_extra *)lck->fname;
THR_UMUTEX_LOCK(_get_curthread(), &_extra->lock);
}