tree c99084e96238eb9ce40e8d9d90e0097c4e92111d
parent b5284e5aa94be2f88dc92b29e97aff3da0c45f9f
author Dan Aloni <da-x@monatomic.org> 1172897091 -0800
committer David S. Miller <davem@davemloft.net> 1172897091 -0800

[VLAN]: Avoid a 4-order allocation.

This patch splits the vlan_group struct into a multi-allocated struct. On
x86_64, the size of the original struct is a little more than 32KB, causing
a 4-order allocation, which is prune to problems caused by buddy-system
external fragmentation conditions.

I couldn't just use vmalloc() because vfree() cannot be called in the
softirq context of the RCU callback.

Signed-off-by: Dan Aloni <da-x@monatomic.org>
Acked-by: Jeff Garzik <jeff@garzik.org>
Signed-off-by: David S. Miller <davem@davemloft.net>