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garp: remove one synchronize_rcu() call

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Speedup vlan dismantling in CONFIG_VLAN_8021Q_GVRP=y cases,
by using a call_rcu() to free the memory instead of waiting with
expensive synchronize_rcu() [ while RTNL is held ]

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Cc: Ben Greear <greearb@candelatech.com>
Cc: Patrick McHardy <kaber@trash.net>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2011-05-09 03:35:55 +00:00 • committed by David S. Miller
parent 226bd34114
commit da37e36876
2 changed files with 7 additions and 2 deletions
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1
include/net/garp.h
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@ -108,6 +108,7 @@ struct garp_applicant {
struct garp_port {
struct garp_applicant __rcu *applicants[GARP_APPLICATION_MAX + 1];
struct rcu_head rcu;
};
extern int garp_register_application(struct garp_application *app);