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Date: Tue, 24 Jul 2007 21:29:51 -0700 (PDT) From: David Miller <davem@...emloft.net> To: rusty@...tcorp.com.au Cc: netdev@...r.kernel.org, shemminger@...ux-foundation.org, jgarzik@...ox.com, hadi@...erus.ca Subject: Re: [PATCH RFX]: napi_struct V3 From: Rusty Russell <rusty@...tcorp.com.au> Date: Wed, 25 Jul 2007 12:33:14 +1000 > Maybe by adding YA state bit? Hold on, this might get ugly... > > Say netif_rx_schedule_prep() sets the MORE_TODO bit (atomically instead > of setting __LINK_STATE_RX_SCHED) if it's going to fail, and > netif_rx_complete() returns 0 if it was set, or 1 if it's OK. Now > callers do: > > reenable_interrupts(); > if (rx_pending() || !netif_rx_complete(netdev, napi)) > disable_interrupts(); This is an interesting idea, and would work, but the extra atomics for something that 2 or 3 drivers actually need.... unless I misunderstand your suggestion? - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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