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| author | Timo Teräs <timo.teras@iki.fi> | 2010-04-07 00:30:05 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-04-07 03:43:19 -0700 |
| commit | 80c802f3073e84c956846e921e8a0b02dfa3755f (patch) | |
| tree | 895dc92dcf6b658d78838e0a23db3dd29c8be695 /kernel/softirq.c | |
| parent | fe1a5f031e76bd8761a7803d75b95ee96e84a574 (diff) | |
| download | blackbird-op-linux-80c802f3073e84c956846e921e8a0b02dfa3755f.tar.gz blackbird-op-linux-80c802f3073e84c956846e921e8a0b02dfa3755f.zip | |
xfrm: cache bundles instead of policies for outgoing flows
__xfrm_lookup() is called for each packet transmitted out of
system. The xfrm_find_bundle() does a linear search which can
kill system performance depending on how many bundles are
required per policy.
This modifies __xfrm_lookup() to store bundles directly in
the flow cache. If we did not get a hit, we just create a new
bundle instead of doing slow search. This means that we can now
get multiple xfrm_dst's for same flow (on per-cpu basis).
Signed-off-by: Timo Teras <timo.teras@iki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'kernel/softirq.c')
0 files changed, 0 insertions, 0 deletions
