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39c90ece75
linux/net
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Eric Dumazet 39c90ece75 [IPV4]: Convert rt_check_expire() from softirq processing to workqueue. 
On loaded/big hosts, rt_check_expire() if of litle use, because it
generally breaks out of its main loop because of a jiffies change.

It can take a long time (read : timer invocations) to actually
scan the whole hash table, freeing unused entries.

Converting it to use a workqueue instead of softirq is a nice
move because we can allow rt_check_expire() to do the scan
it is supposed to do, without hogging the CPU.

This has an impact on the average number of entries in cache,
reducing ram usage. Cache is more responsive to parameter
changes (/proc/sys/net/ipv4/route/gc_timeout and
/proc/sys/net/ipv4/route/gc_interval)

Note: Maybe the default value of gc_interval (60 seconds)
is too high, since this means we actually need 5 (300/60)
invocations to scan the whole table.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2007-10-10 16:49:25 -07:00
..
9p
802 [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
8021q [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
appletalk [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
atm [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
ax25 [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
bluetooth [NET]: Make socket creation namespace safe. 2007-10-10 16:49:07 -07:00
bridge [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
core [NET]: Fix race when opening a proc file while a network namespace is exiting. 2007-10-10 16:49:22 -07:00
dccp [NET]: Make /proc/net per network namespace 2007-10-10 16:49:06 -07:00
decnet [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
econet [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
ethernet
ieee80211 [NET]: Make /proc/net per network namespace 2007-10-10 16:49:06 -07:00
ipv4 [IPV4]: Convert rt_check_expire() from softirq processing to workqueue. 2007-10-10 16:49:25 -07:00
ipv6 [NETLINK]: Introduce nested and byteorder flag to netlink attribute 2007-10-10 16:49:16 -07:00
ipx [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
irda [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
iucv [NET]: Make socket creation namespace safe. 2007-10-10 16:49:07 -07:00
key [NET]: Make socket creation namespace safe. 2007-10-10 16:49:07 -07:00
lapb
llc [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
mac80211 [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
netfilter [NET]: Disable netfilter sockopts when not in the initial network namespace 2007-10-10 16:49:13 -07:00
netlabel [NETLINK]: Introduce nested and byteorder flag to netlink attribute 2007-10-10 16:49:16 -07:00
netlink [NET]: Fix race when opening a proc file while a network namespace is exiting. 2007-10-10 16:49:22 -07:00
netrom [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
packet [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
rfkill [RFKILL]: Add support for ultrawideband 2007-10-10 16:49:23 -07:00
rose [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
rxrpc [NET]: Make socket creation namespace safe. 2007-10-10 16:49:07 -07:00
sched [NET_SCHED]: Cleanup L2T macros and handle oversized packets 2007-10-10 16:49:20 -07:00
sctp [SCTP] net/sctp/socket.c: make 3 variables static 2007-10-10 16:49:19 -07:00
sunrpc [NET]: Make /proc/net per network namespace 2007-10-10 16:49:06 -07:00
tipc [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
unix [NET]: Make socket creation namespace safe. 2007-10-10 16:49:07 -07:00
wanrouter [NET]: Make /proc/net per network namespace 2007-10-10 16:49:06 -07:00
wireless [NET]: Fix race when opening a proc file while a network namespace is exiting. 2007-10-10 16:49:22 -07:00
x25 [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
xfrm [NET]: Support multiple network namespaces with netlink 2007-10-10 16:49:09 -07:00
compat.c
Kconfig
Makefile
nonet.c
socket.c [NET]: Make the device list and device lookups per namespace. 2007-10-10 16:49:10 -07:00
sysctl_net.c
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