kalloc: Fix deadlock in kalloc
kalloc: Fix deadlock in kalloc

We did hand-over-hand locking by accident when stealing.

aclements/sv6,bowlofstew/sv6,bowlofstew/sv6,bowlofstew/sv6,bowlofstew/sv6,aclements/sv6,aclements/sv6,bowlofstew/sv6,aclements/sv6,aclements/sv6