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authorIlpo Järvinen <ilpo.jarvinen@helsinki.fi>2008-03-27 17:51:31 -0700
committerDavid S. Miller <davem@davemloft.net>2008-03-27 17:51:31 -0700
commitf58518e678e5eef430c8d5cdcc7cd28d285f1980 (patch)
treee452fd4e737c69d969dc373bbdc24e3ac4ab1175 /net
parent6be8ac2fdc5e69dec53913a42312a92dbfbd4907 (diff)
[NET]: uninline dev_alloc_skb, de-bloats a lot
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 <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/skbuff.c18
1 files changed, 18 insertions, 0 deletions
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;