RE:RE: is it useful testing __LINK_STATE_RX_SCHED in dev_close()?

2007-11-20 Thread wyb
__LINK_STATE_RX_SCHED still exist in kernel 2.6.23.8. Netdevice.h: /* Test if receive needs to be scheduled */ static inline int __netif_rx_schedule_prep(struct net_device *dev) { return !test_and_set_bit(__LINK_STATE_RX_SCHED, &dev->state); } /* Test if receive needs to be scheduled bu

is it useful testing __LINK_STATE_RX_SCHED in dev_close()?

2007-11-20 Thread wyb
cpu0 calling netif_rx_schedule_prep(), cpu1 calling dev_close(): cpu0: testing __LINK_STATE_START, already set cpu1: clear__LINK_STATE_START cpu1: testing __LINK_STATE_RX_SCHED, not set cpu0: set __LINK_STATE_RX_SCHED cpu0: enter net poll, ... when cpu1 return from dev_close(),__LINK_STATE_RX_SCH