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net,rcu: convert call_rcu(rps_map_release) to kfree_rcu()

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The rcu callback rps_map_release() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(rps_map_release).

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
This commit is contained in:
Lai Jiangshan 2011-03-18 12:01:31 +08:00 committed by Paul E. McKenney
parent e3cbf28fa6
commit f6f80238fa
1 changed files with 2 additions and 9 deletions
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11
net/core/net-sysfs.c
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@ -565,13 +565,6 @@ static ssize_t show_rps_map(struct netdev_rx_queue *queue,
return len;
}
static void rps_map_release(struct rcu_head *rcu)
{
struct rps_map *map = container_of(rcu, struct rps_map, rcu);
kfree(map);
}
static ssize_t store_rps_map(struct netdev_rx_queue *queue,
struct rx_queue_attribute *attribute,
const char *buf, size_t len)
@ -619,7 +612,7 @@ static ssize_t store_rps_map(struct netdev_rx_queue *queue,
spin_unlock(&rps_map_lock);
if (old_map)
call_rcu(&old_map->rcu, rps_map_release);
kfree_rcu(old_map, rcu);
free_cpumask_var(mask);
return len;
@ -728,7 +721,7 @@ static void rx_queue_release(struct kobject *kobj)
map = rcu_dereference_raw(queue->rps_map);
if (map) {
RCU_INIT_POINTER(queue->rps_map, NULL);
call_rcu(&map->rcu, rps_map_release);
kfree_rcu(map, rcu);
}
flow_table = rcu_dereference_raw(queue->rps_flow_table);