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| author | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-03-04 13:16:49 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-03-04 13:16:49 -0800 |
| commit | 6d04e3b04b6ab569cabeb5ca28ad1be11777e895 (patch) | |
| tree | aaee636d71492f36fdef9977488c85a64063f8c4 /include/linux | |
| parent | 42270035c6550101f7dc742a630c2590dd2d3ae0 (diff) | |
| parent | 5c15bdec5c38f4ccf73ef2585fc80a6164de9554 (diff) | |
| download | op-kernel-dev-6d04e3b04b6ab569cabeb5ca28ad1be11777e895.zip op-kernel-dev-6d04e3b04b6ab569cabeb5ca28ad1be11777e895.tar.gz | |
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
[VLAN]: Avoid a 4-order allocation.
[HDLC] Fix dev->header_cache_update having a random value.
[NetLabel]: Verify sensitivity level has a valid CIPSO mapping
[PPPOE]: Key connections properly on local device.
[AF_UNIX]: Test against sk_max_ack_backlog properly.
[NET]: Fix bugs in "Whether sock accept queue is full" checking
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/if_vlan.h | 25 |
1 files changed, 22 insertions, 3 deletions
diff --git a/include/linux/if_vlan.h b/include/linux/if_vlan.h index 35cb385..d103580 100644 --- a/include/linux/if_vlan.h +++ b/include/linux/if_vlan.h @@ -70,15 +70,34 @@ extern void vlan_ioctl_set(int (*hook)(void __user *)); * depends on completely exhausting the VLAN identifier space. Thus * it gives constant time look-up, but in many cases it wastes memory. */ -#define VLAN_GROUP_ARRAY_LEN 4096 +#define VLAN_GROUP_ARRAY_LEN 4096 +#define VLAN_GROUP_ARRAY_SPLIT_PARTS 8 +#define VLAN_GROUP_ARRAY_PART_LEN (VLAN_GROUP_ARRAY_LEN/VLAN_GROUP_ARRAY_SPLIT_PARTS) struct vlan_group { int real_dev_ifindex; /* The ifindex of the ethernet(like) device the vlan is attached to. */ struct hlist_node hlist; /* linked list */ - struct net_device *vlan_devices[VLAN_GROUP_ARRAY_LEN]; + struct net_device **vlan_devices_arrays[VLAN_GROUP_ARRAY_SPLIT_PARTS]; struct rcu_head rcu; }; +static inline struct net_device *vlan_group_get_device(struct vlan_group *vg, int vlan_id) +{ + struct net_device **array; + array = vg->vlan_devices_arrays[vlan_id / VLAN_GROUP_ARRAY_PART_LEN]; + return array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN]; +} + +static inline void vlan_group_set_device(struct vlan_group *vg, int vlan_id, + struct net_device *dev) +{ + struct net_device **array; + if (!vg) + return; + array = vg->vlan_devices_arrays[vlan_id / VLAN_GROUP_ARRAY_PART_LEN]; + array[vlan_id % VLAN_GROUP_ARRAY_PART_LEN] = dev; +} + struct vlan_priority_tci_mapping { unsigned long priority; unsigned short vlan_qos; /* This should be shifted when first set, so we only do it @@ -160,7 +179,7 @@ static inline int __vlan_hwaccel_rx(struct sk_buff *skb, return NET_RX_DROP; } - skb->dev = grp->vlan_devices[vlan_tag & VLAN_VID_MASK]; + skb->dev = vlan_group_get_device(grp, vlan_tag & VLAN_VID_MASK); if (skb->dev == NULL) { dev_kfree_skb_any(skb); |
