UDP memory usage accounting

Satoshi OSHIMA netdev 1 version Sep 21, 2007 In review

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v1 Latest Sep 21, 20073 patches 14 repliesIn review

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#	Subject and files	Size	Replies
1/3	UDP memory usage accounting: fix send buffer check`net/ipv4/ip_output.c`	+5 -0	0 replies
2/3	UDP memory usage accounting: accounting unit and variable`include/net/sock.h` `include/net/udp.h` `net/ipv4/proc.c` +1 more	+0 -0	4 replies
3/3	UDP memory usage accounting: measurement`net/ipv4/ip_output.c` `net/ipv4/udp.c`	+29 -3	0 replies

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Cover letter [RFC/PATCH 0/3] UDP memory usage accounting

This patch set try to introduce memory usage accounting for UDP(currently ipv4 only).

Currently, memory usage of UDP can be observed as the sam of usage of tx_queue and rx_queue. But I believe that the system wide accounting is usefull when heavy loaded condition.

In the next step, I would like to add memory usage quota for UDP to avoid unlimited memory consumption problem under DDOS attack.

This patch set is for 2.6.23-rc7.

Unfortunately, I don't have any NIC with UFO. So this patch set is not tested with UFO supported device.

I appreciate your comment/test/feedback.

Satoshi Oshima

Read the cover letter in its thread