tree e846325f0ae13b20b78fa711759b09600c8646df
parent 824621eddd2087b0e6f0b2e0da91e8d77e4919bf
author Martin Josefsson <gandalf@wlug.westbo.se> 1164764112 +0100
committer David S. Miller <davem@sunset.davemloft.net> 1165123874 -0800

[NETFILTER]: nf_conntrack: reduce timer updates in __nf_ct_refresh_acct()

Only update the conntrack timer if there's been at least HZ jiffies since
the last update. Reduces the number of del_timer/add_timer cycles from one
per packet to one per connection per second (plus once for each state change
of a connection)

Should handle timer wraparounds and connection timeout changes.

Signed-off-by: Martin Josefsson <gandalf@wlug.westbo.se>
Signed-off-by: Patrick McHardy <kaber@trash.net>