fragment: add fast path for in-order fragments

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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>

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Changli Gao 2010-06-29 04:39:37 +00:00 • committed by David S. Miller

parent 4ce3c183fc

commit d6bebca92c

3 changed files with 24 additions and 0 deletions

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1

include/net/inet_frag.h

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12

net/ipv4/ip_fragment.c

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11

net/ipv6/reassembly.c

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