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Message-ID: <20071005085257.24b2e5cc@freepuppy.rosehill> Date: Fri, 5 Oct 2007 08:52:57 -0700 From: Stephen Hemminger <shemminger@...ux-foundation.org> To: Satoshi OSHIMA <satoshi.oshima.fk@...achi.com> Cc: Andi Kleen <andi@...stfloor.org>, David Miller <davem@...emloft.net>, Evgeniy Polyakov <johnpol@....mipt.ru>, Herbert Xu <herbert@...dor.apana.org.au>, netdev <netdev@...r.kernel.org>, ?? ?? <yoshfuji@...ux-ipv6.org>, Yumiko SUGITA <yumiko.sugita.yf@...achi.com>, "??@...Hat" <haoki@...hat.com> Subject: Re: [RFC/PATCH 4/4] UDP memory usage accounting (take 4): memory limitation On Sat, 06 Oct 2007 00:02:47 +0900 Satoshi OSHIMA <satoshi.oshima.fk@...achi.com> wrote: > This patch introduces memory limitation for UDP. > > > signed-off-by: Satoshi Oshima <satoshi.oshima.fk@...achi.com> > signed-off-by: Hideo Aoki <haoki@...hat.com> > Index: 2.6.23-rc9-udp_limit/net/ipv4/sysctl_net_ipv4.c > =================================================================== > --- 2.6.23-rc9-udp_limit.orig/net/ipv4/sysctl_net_ipv4.c > +++ 2.6.23-rc9-udp_limit/net/ipv4/sysctl_net_ipv4.c > @@ -17,6 +17,7 @@ > #include <net/ip.h> > #include <net/route.h> > #include <net/tcp.h> > +#include <net/udp.h> > #include <net/cipso_ipv4.h> > > /* From af_inet.c */ > @@ -599,6 +600,14 @@ ctl_table ipv4_table[] = { > .proc_handler = &proc_dointvec > }, > { > + .ctl_name = NET_UDP_MEM, > + .procname = "udp_mem", > + .data = &sysctl_udp_mem, > + .maxlen = sizeof(sysctl_udp_mem), > + .mode = 0644, > + .proc_handler = &proc_dointvec > + }, > + { > .ctl_name = NET_TCP_APP_WIN, > .procname = "tcp_app_win", > .data = &sysctl_tcp_app_win, if you use &proc_dointvec_minmax, then you could inforce min/max values for udp_mem for the sysctl -- Stephen Hemminger <shemminger@...ux-foundation.org> - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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