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net: Simplify RX queue allocation

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This patch move RX queue allocation to alloc_netdev_mq and freeing of
the queues to free_netdev (symmetric to TX queue allocation).  Each
kobject RX queue takes a reference to the queue's device so that the
device can't be freed before all the kobjects have been released-- this
obviates the need for reference counts specific to RX queues.

Signed-off-by: Tom Herbert <therbert@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2010-11-09 10:47:38 +00:00 • committed by David S. Miller
parent ed9af2e839
commit fe8222406c
3 changed files with 13 additions and 16 deletions
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3
include/linux/netdevice.h
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@ -592,8 +592,7 @@ struct netdev_rx_queue {
struct rps_map __rcu *rps_map;
struct rps_dev_flow_table __rcu *rps_flow_table;
struct kobject kobj;
struct netdev_rx_queue *first;
atomic_t count;
struct net_device *dev;
} ____cacheline_aligned_in_smp;
#endif /* CONFIG_RPS */