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authorArnaldo Carvalho de Melo <acme@redhat.com>2007-04-19 23:29:13 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-26 01:26:28 -0400
commit27a884dc3cb63b93c2b3b643f5b31eed5f8a4d26 (patch)
tree5a267e40f9b94014be38dad5de0a52b6628834e0 /net/econet
parentbe8bd86321fa7f06359d866ef61fb4d2f3e9dce9 (diff)
[SK_BUFF]: Convert skb->tail to sk_buff_data_t
So that it is also an offset from skb->head, reduces its size from 8 to 4 bytes on 64bit architectures, allowing us to combine the 4 bytes hole left by the layer headers conversion, reducing struct sk_buff size to 256 bytes, i.e. 4 64byte cachelines, and since the sk_buff slab cache is SLAB_HWCACHE_ALIGN... :-) Many calculations that previously required that skb->{transport,network, mac}_header be first converted to a pointer now can be done directly, being meaningful as offsets or pointers. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/econet')
-rw-r--r--net/econet/af_econet.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/econet/af_econet.c b/net/econet/af_econet.c
index 78993dadb53a..b5524f32ac2d 100644
--- a/net/econet/af_econet.c
+++ b/net/econet/af_econet.c
@@ -366,7 +366,7 @@ static int econet_sendmsg(struct kiocb *iocb, struct socket *sock,
366 fh->cb = cb; 366 fh->cb = cb;
367 fh->port = port; 367 fh->port = port;
368 if (sock->type != SOCK_DGRAM) { 368 if (sock->type != SOCK_DGRAM) {
369 skb->tail = skb->data; 369 skb_reset_tail_pointer(skb);
370 skb->len = 0; 370 skb->len = 0;
371 } else if (res < 0) 371 } else if (res < 0)
372 goto out_free; 372 goto out_free;