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netfilter: nf_flowtable: expose nf_flow_table_gc_cleanup()

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This function schedules the flow teardown state and it forces a gc run.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pablo Neira Ayuso 2020-05-29 02:25:34 +02:00 committed by David S. Miller
parent a01c245438
commit a8284c6899
2 changed files with 5 additions and 3 deletions
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2
include/net/netfilter/nf_flow_table.h
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@ -175,6 +175,8 @@ void flow_offload_refresh(struct nf_flowtable *flow_table,
struct flow_offload_tuple_rhash *flow_offload_lookup(struct nf_flowtable *flow_table, struct flow_offload_tuple_rhash *flow_offload_lookup(struct nf_flowtable *flow_table,
struct flow_offload_tuple *tuple); struct flow_offload_tuple *tuple);
void nf_flow_table_gc_cleanup(struct nf_flowtable *flowtable,
struct net_device *dev);
void nf_flow_table_cleanup(struct net_device *dev); void nf_flow_table_cleanup(struct net_device *dev);
int nf_flow_table_init(struct nf_flowtable *flow_table); int nf_flow_table_init(struct nf_flowtable *flow_table);

6
net/netfilter/nf_flow_table_core.c
View File

@ -588,8 +588,8 @@ static void nf_flow_table_do_cleanup(struct flow_offload *flow, void *data)
flow_offload_teardown(flow); flow_offload_teardown(flow);
} }
static void nf_flow_table_iterate_cleanup(struct nf_flowtable *flowtable, void nf_flow_table_gc_cleanup(struct nf_flowtable *flowtable,
struct net_device *dev) struct net_device *dev)
{ {
nf_flow_table_iterate(flowtable, nf_flow_table_do_cleanup, dev); nf_flow_table_iterate(flowtable, nf_flow_table_do_cleanup, dev);
flush_delayed_work(&flowtable->gc_work); flush_delayed_work(&flowtable->gc_work);
@ -602,7 +602,7 @@ void nf_flow_table_cleanup(struct net_device *dev)
mutex_lock(&flowtable_lock); mutex_lock(&flowtable_lock);
list_for_each_entry(flowtable, &flowtables, list) list_for_each_entry(flowtable, &flowtables, list)
nf_flow_table_iterate_cleanup(flowtable, dev); nf_flow_table_gc_cleanup(flowtable, dev);
mutex_unlock(&flowtable_lock); mutex_unlock(&flowtable_lock);
} }
EXPORT_SYMBOL_GPL(nf_flow_table_cleanup); EXPORT_SYMBOL_GPL(nf_flow_table_cleanup);