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author | Linus Torvalds <torvalds@g5.osdl.org> | 2006-08-02 22:35:26 -0700 |
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committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-08-02 22:35:26 -0700 |
commit | 46f5960fdbf359f0c75989854bbaebc1de7a1eb4 (patch) | |
tree | 132d8d0eba110342bb88fcce2519c441ac771162 /include/linux/skbuff.h | |
parent | 90eb29efd0ca9301d80d03ea13662d32436f060e (diff) | |
parent | 29bbd72d6ee1dbf2d9f00d022f8e999aa528fb3a (diff) | |
download | op-kernel-dev-46f5960fdbf359f0c75989854bbaebc1de7a1eb4.zip op-kernel-dev-46f5960fdbf359f0c75989854bbaebc1de7a1eb4.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: (32 commits)
[NET]: Fix more per-cpu typos
[SECURITY]: Fix build with CONFIG_SECURITY disabled.
[I/OAT]: Remove CPU hotplug lock from net_dma_rebalance
[DECNET]: Fix for routing bug
[AF_UNIX]: Kernel memory leak fix for af_unix datagram getpeersec patch
[NET]: skb_queue_lock_key() is no longer used.
[NET]: Remove lockdep_set_class() call from skb_queue_head_init().
[IPV6]: SNMPv2 "ipv6IfStatsOutFragCreates" counter error
[IPV6]: SNMPv2 "ipv6IfStatsInHdrErrors" counter error
[NET]: Kill the WARN_ON() calls for checksum fixups.
[NETFILTER]: xt_hashlimit/xt_string: missing string validation
[NETFILTER]: SIP helper: expect RTP streams in both directions
[E1000]: Convert to netdev_alloc_skb
[TG3]: Convert to netdev_alloc_skb
[NET]: Add netdev_alloc_skb().
[TCP]: Process linger2 timeout consistently.
[SECURITY] secmark: nul-terminate secdata
[NET] infiniband: Cleanup ib_addr module to use the netevents
[NET]: Core net changes to generate netevents
[NET]: Network Event Notifier Mechanism.
...
Diffstat (limited to 'include/linux/skbuff.h')
-rw-r--r-- | include/linux/skbuff.h | 33 |
1 files changed, 30 insertions, 3 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index 4307e76..19c96d4 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -604,12 +604,17 @@ static inline __u32 skb_queue_len(const struct sk_buff_head *list_) return list_->qlen; } -extern struct lock_class_key skb_queue_lock_key; - +/* + * This function creates a split out lock class for each invocation; + * this is needed for now since a whole lot of users of the skb-queue + * infrastructure in drivers have different locking usage (in hardirq) + * than the networking core (in softirq only). In the long run either the + * network layer or drivers should need annotation to consolidate the + * main types of usage into 3 classes. + */ static inline void skb_queue_head_init(struct sk_buff_head *list) { spin_lock_init(&list->lock); - lockdep_set_class(&list->lock, &skb_queue_lock_key); list->prev = list->next = (struct sk_buff *)list; list->qlen = 0; } @@ -1104,6 +1109,28 @@ static inline struct sk_buff *dev_alloc_skb(unsigned int length) return __dev_alloc_skb(length, GFP_ATOMIC); } +extern struct sk_buff *__netdev_alloc_skb(struct net_device *dev, + unsigned int length, gfp_t gfp_mask); + +/** + * netdev_alloc_skb - allocate an skbuff for rx on a specific device + * @dev: network device to receive on + * @length: length to allocate + * + * Allocate a new &sk_buff and assign it a usage count of one. The + * buffer has unspecified headroom built in. Users should allocate + * the headroom they think they need without accounting for the + * built in space. The built in space is used for optimisations. + * + * %NULL is returned if there is no free memory. Although this function + * allocates memory it can be called from an interrupt. + */ +static inline struct sk_buff *netdev_alloc_skb(struct net_device *dev, + unsigned int length) +{ + return __netdev_alloc_skb(dev, length, GFP_ATOMIC); +} + /** * skb_cow - copy header of skb when it is required * @skb: buffer to cow |