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(parent: 85e1468) | patch
ipvs: optimize checksums for apps
authorJulian Anastasov <ja@ssi.bg>
Sun, 17 Oct 2010 13:17:20 +0000 (16:17 +0300)
committerSimon Horman <horms@verge.net.au>
Thu, 21 Oct 2010 08:50:02 +0000 (10:50 +0200)
commit438b979dfb2e9c515bc8ae927d585aaa397d3cc9
tree89f5db8881b0297cda00cad3c2cdedf685e2757ftree | snapshot
parent85e146872919700717eeabb5af2d435e3b19c82ecommit | diff
ipvs: optimize checksums for apps

  Avoid full checksum calculation for apps that can provide
info whether csum was broken after payload mangling. For now only
ip_vs_ftp mangles payload and it updates the csum, so the full
recalculation is avoided for all packets.

  Add CHECKSUM_UNNECESSARY for snat_handler (TCP and UDP).
It is needed to support SNAT from local address for the case
when csum is fully recalculated.

Signed-off-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
include/net/ip_vs.h diff | blob | history
net/netfilter/ipvs/ip_vs_ftp.c diff | blob | history
net/netfilter/ipvs/ip_vs_proto_tcp.c diff | blob | history
net/netfilter/ipvs/ip_vs_proto_udp.c diff | blob | history
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