Commit f05ba7fc authored by Srivatsa S. Bhat's avatar Srivatsa S. Bhat Committed by David S. Miller
Browse files

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: default avatarSrivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d530d6df

net/core/netprio_cgroup.c

+4 −5
Original line number Diff line number Diff line
@@ -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;

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