From f58518e678e5eef430c8d5cdcc7cd28d285f1980 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ilpo=20J=C3=A4rvinen?= Date: Thu, 27 Mar 2008 17:51:31 -0700 Subject: [NET]: uninline dev_alloc_skb, de-bloats a lot MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Allyesconfig (v2.6.24-mm1): -23668 392 funcs, 104 +, 23772 -, diff: -23668 --- dev_alloc_skb Without many debug CONFIGs (v2.6.25-rc2-mm1): -12178 382 funcs, 157 +, 12335 -, diff: -12178 --- dev_alloc_skb dev_alloc_skb | +37 Signed-off-by: Ilpo Järvinen Signed-off-by: David S. Miller --- net/core/skbuff.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'net/core/skbuff.c') diff --git a/net/core/skbuff.c b/net/core/skbuff.c index cf489b6329e..0daf5c0e5b8 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -263,6 +263,24 @@ struct sk_buff *__netdev_alloc_skb(struct net_device *dev, return skb; } +/** + * dev_alloc_skb - allocate an skbuff for receiving + * @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. + */ +struct sk_buff *dev_alloc_skb(unsigned int length) +{ + return __dev_alloc_skb(length, GFP_ATOMIC); +} +EXPORT_SYMBOL(dev_alloc_skb); + static void skb_drop_list(struct sk_buff **listp) { struct sk_buff *list = *listp; -- cgit v1.2.3