oleg 47cb787bfd Type of q_time (start of queue idle time) has changed: uint32_t -> uint64_t.
This should fix q_time overflow, which happens after 2^32/(86400*hz) days of
uptime (~50days for hz = 1000).
q_time overflow cause following:
- traffic shaping may not work in 'fast' mode (not enabled by default).
- incorrect average queue length calculation in RED/GRED algorithm.

NB: due to ABI change this change is not applicable to stable.

PR:		kern/128401
2008-10-28 14:14:57 +00:00
..
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Nit
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