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author | Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> | 2008-03-28 00:51:31 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2008-03-28 00:51:31 (GMT) |
commit | f58518e678e5eef430c8d5cdcc7cd28d285f1980 (patch) | |
tree | e452fd4e737c69d969dc373bbdc24e3ac4ab1175 /net/core/skbuff.c | |
parent | 6be8ac2fdc5e69dec53913a42312a92dbfbd4907 (diff) | |
download | linux-fsl-qoriq-f58518e678e5eef430c8d5cdcc7cd28d285f1980.tar.xz |
[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/core/skbuff.c')
-rw-r--r-- | net/core/skbuff.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index cf489b6..0daf5c0 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; |