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efe074c2cc
Some packet schedulers might want to add a slack when programming hrtimers. This can reduce number of interrupts and increase batch sizes and thus give good xmit_more savings. This commit adds qdisc_watchdog_schedule_range_ns() helper, with an extra delta_ns parameter. Legacy qdisc_watchdog_schedule_n() becomes an inline passing a zero slack. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>