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bgpd: optimize bgp_aggregate_[increment|decrement]()

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If there were no aggregates configured this functions were allocating
and freeing a struct bgp_node for every call, and it's called for every
prefix received.

* bgp_route.c: Bail out early if the there are no aggregates configured.
  Change from bgp_node_get() to bgp_node_lookup() that does not allocate
  a new struct bgp_node if not found.

Signed-off-by: Jorge Boncompte [DTI2] <jorge@dti2.net>
Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
This commit is contained in:
Jorge Boncompte [DTI2] 2012-05-07 16:53:10 +00:00 committed by David Lamparter
parent 343aa82219
commit f018db83a0
1 changed files with 20 additions and 2 deletions
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22
bgpd/bgp_route.c
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@ -4660,18 +4660,27 @@ bgp_aggregate_increment (struct bgp *bgp, struct prefix *p,
struct bgp_node *child;
struct bgp_node *rn;
struct bgp_aggregate *aggregate;
struct bgp_table *table;
/* MPLS-VPN aggregation is not yet supported. */
if (safi == SAFI_MPLS_VPN)
return;
table = bgp->aggregate[afi][safi];
/* No aggregates configured. */
if (table->top == NULL)
return;
if (p->prefixlen == 0)
return;
if (BGP_INFO_HOLDDOWN (ri))
return;
child = bgp_node_get (bgp->aggregate[afi][safi], p);
child = bgp_node_lookup (table, p);
if (! child)
return;
/* Aggregate address configuration check. */
for (rn = child; rn; rn = rn->parent)
@ -4690,15 +4699,24 @@ bgp_aggregate_decrement (struct bgp *bgp, struct prefix *p,
struct bgp_node *child;
struct bgp_node *rn;
struct bgp_aggregate *aggregate;
struct bgp_table *table;
/* MPLS-VPN aggregation is not yet supported. */
if (safi == SAFI_MPLS_VPN)
return;
table = bgp->aggregate[afi][safi];
/* No aggregates configured. */
if (table->top == NULL)
return;
if (p->prefixlen == 0)
return;
child = bgp_node_get (bgp->aggregate[afi][safi], p);
child = bgp_node_lookup (table, p);
if (! child)
return;
/* Aggregate address configuration check. */
for (rn = child; rn; rn = rn->parent)