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authorLai Jiangshan <laijs@cn.fujitsu.com>2011-03-18 12:02:47 +0800
committerPaul E. McKenney <paulmck@linux.vnet.ibm.com>2011-05-07 22:51:04 -0700
commitb55071eb6011413af3b9c434ae77dea8832069c8 (patch)
tree47d1ea3b74536adbf5e17388f08981016e5c1397
parentedc86d8a1c824cca1df676f47fc713232885561f (diff)
downloadlinux-linaro-stable-b55071eb6011413af3b9c434ae77dea8832069c8.tar.gz
net,rcu: convert call_rcu(xps_dev_maps_release) to kfree_rcu()
The rcu callback xps_dev_maps_release() just calls a kfree(), so we use kfree_rcu() instead of the call_rcu(xps_dev_maps_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>
-rw-r--r--net/core/net-sysfs.c12
1 files changed, 2 insertions, 10 deletions
diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index 48ffc216c86f..80b2aad3b73d 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -891,14 +891,6 @@ static ssize_t show_xps_map(struct netdev_queue *queue,
return len;
}
-static void xps_dev_maps_release(struct rcu_head *rcu)
-{
- struct xps_dev_maps *dev_maps =
- container_of(rcu, struct xps_dev_maps, rcu);
-
- kfree(dev_maps);
-}
-
static DEFINE_MUTEX(xps_map_mutex);
#define xmap_dereference(P) \
rcu_dereference_protected((P), lockdep_is_held(&xps_map_mutex))
@@ -1008,7 +1000,7 @@ static ssize_t store_xps_map(struct netdev_queue *queue,
}
if (dev_maps)
- call_rcu(&dev_maps->rcu, xps_dev_maps_release);
+ kfree_rcu(dev_maps, rcu);
netdev_queue_numa_node_write(queue, (numa_node >= 0) ? numa_node :
NUMA_NO_NODE);
@@ -1080,7 +1072,7 @@ static void netdev_queue_release(struct kobject *kobj)
if (!nonempty) {
RCU_INIT_POINTER(dev->xps_maps, NULL);
- call_rcu(&dev_maps->rcu, xps_dev_maps_release);
+ kfree_rcu(dev_maps, rcu);
}
}