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* net: use IS_ENABLED(CONFIG_IPV6)Eric Dumazet2011-12-121-1/+1
| | | | | | | Instead of testing defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: reduce percpu needs for icmpv6msg mibsEric Dumazet2011-11-141-1/+1
| | | | | | | | | | | | | | | | | | Reading /proc/net/snmp6 on a machine with a lot of cpus is very expensive (can be ~88000 us). This is because ICMPV6MSG MIB uses 4096 bytes per cpu, and folding values for all possible cpus can read 16 Mbytes of memory (32MBytes on non x86 arches) ICMP messages are not considered as fast path on a typical server, and eventually few cpus handle them anyway. We can afford an atomic operation instead of using percpu data. This saves 4096 bytes per cpu and per network namespace. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv4: reduce percpu needs for icmpmsg mibsEric Dumazet2011-11-091-1/+1
| | | | | | | | | | | | | | | | | Reading /proc/net/snmp on a machine with a lot of cpus is very expensive (can be ~88000 us). This is because ICMPMSG MIB uses 4096 bytes per cpu, and folding values for all possible cpus can read 16 Mbytes of memory. ICMP messages are not considered as fast path on a typical server, and eventually few cpus handle them anyway. We can afford an atomic operation instead of using percpu data. This saves 4096 bytes per cpu and per network namespace. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netns xfrm: per-netns MIBsAlexey Dobriyan2008-11-261-0/+3
| | | | | Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: making ip and icmp statistics per/namespaceDenis V. Lunev2008-10-081-0/+3
| | | | | Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* netns: make uplitev6 mib per/namespaceDenis V. Lunev2008-10-071-0/+1
| | | | | Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* netns: make udpv6 mib per/namespaceDenis V. Lunev2008-10-071-0/+1
| | | | | Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* netns: move /proc/net/dev_snmp6 to struct netDenis V. Lunev2008-10-071-0/+4
| | | | | Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: put icmpmsg statistics on struct netPavel Emelyanov2008-07-181-0/+1
| | | | | Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: put icmp statistics on struct netPavel Emelyanov2008-07-181-0/+1
| | | | | Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: put udplite statistics on struct netPavel Emelyanov2008-07-181-0/+1
| | | | | Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: put udp statistics on struct netPavel Emelyanov2008-07-181-0/+1
| | | | | | | Similar to... ouch, I repeat myself. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: put net statistics on struct netPavel Emelyanov2008-07-181-0/+1
| | | | | | | Similar to ip and tcp ones :) Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: put ip statistics on struct netPavel Emelyanov2008-07-181-0/+1
| | | | | | | Similar to tcp one. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: put tcp statistics on struct netPavel Emelyanov2008-07-181-0/+1
| | | | | | | | | Proc temporary uses stats from init_net. BTW, TCP_XXX_STATS are beautiful (w/o do { } while (0) facing) again :) Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* mib: add netns/mib.h filePavel Emelyanov2008-07-181-0/+9
The only structure declared within is the netns_mib, which will carry all our mibs within. I didn't put the mibs in the existing netns_xxx structures to make it possible to mark this one as properly aligned and get in a separate "read-mostly" cache-line. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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