3582d4b4c2
nanouptime() instead of getnanouptime(). nanouptime(9) provides more precise result at expense of being slower. In r269223, gethrtime() is used as creation time of dbuf, which in turn acts as portion of lookup key to maintain AVL invariant where there can not be duplicate items. Before this change, gethrtime() have preferred better execution time by sacrificing precision, which may lead to panic on busy systems with: panic: avl_find() succeeded inside avl_add() Reported by: allanjude, mav PR: kern/192284 MFC after: 11 days X-MFC-with: r269223
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