diff options
| author | Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> | 2012-09-12 20:32:34 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-09-13 16:18:40 -0400 |
| commit | f05ba7fccf0c5f0422378adaffcb119d08b9f304 (patch) | |
| tree | 504194829b96ad5f64c646dfc4b4336ee63550b1 | |
| parent | d530d6df96ee28902486f8e11815ef9ad3a1cd1b (diff) | |
| download | linux-f05ba7fccf0c5f0422378adaffcb119d08b9f304.tar.bz2 | |
netprio_cgroup: Use memcpy instead of the for-loop to copy priomap
Replace the current (inefficient) for-loop with memcpy, to copy priomap.
Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/core/netprio_cgroup.c | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/net/core/netprio_cgroup.c b/net/core/netprio_cgroup.c index fd339bb00106..45c503e45fc6 100644 --- a/net/core/netprio_cgroup.c +++ b/net/core/netprio_cgroup.c @@ -73,7 +73,6 @@ static int extend_netdev_table(struct net_device *dev, u32 new_len) ((sizeof(u32) * new_len)); struct netprio_map *new_priomap = kzalloc(new_size, GFP_KERNEL); struct netprio_map *old_priomap; - int i; old_priomap = rtnl_dereference(dev->priomap); @@ -82,10 +81,10 @@ static int extend_netdev_table(struct net_device *dev, u32 new_len) return -ENOMEM; } - for (i = 0; - old_priomap && (i < old_priomap->priomap_len); - i++) - new_priomap->priomap[i] = old_priomap->priomap[i]; + if (old_priomap) + memcpy(new_priomap->priomap, old_priomap->priomap, + old_priomap->priomap_len * + sizeof(old_priomap->priomap[0])); new_priomap->priomap_len = new_len; |