tree fd797f062fa19d2ee470cf33c9b475bff08e2545
parent 4ce3c183fcade7f4b30a33dae90cd774c3d9e094
author Changli Gao <xiaosuo@gmail.com> 1277786377 +0000
committer David S. Miller <davem@davemloft.net> 1277930669 -0700

fragment: add fast path for in-order fragments

add fast path for in-order fragments

As the fragments are sent in order in most of OSes, such as Windows, Darwin and
FreeBSD, it is likely the new fragments are at the end of the inet_frag_queue.
In the fast path, we check if the skb at the end of the inet_frag_queue is the
prev we expect.

Signed-off-by: Changli Gao <xiaosuo@gmail.com>
----
 include/net/inet_frag.h |    1 +
 net/ipv4/ip_fragment.c  |   12 ++++++++++++
 net/ipv6/reassembly.c   |   11 +++++++++++
 3 files changed, 24 insertions(+)
Signed-off-by: David S. Miller <davem@davemloft.net>