tree f93714f98d12890f961794cd026b6bf2de75105e
parent dde7258666fd73878b4cc10b4b5b7c07e9be049e
author Stephen Hemminger <shemminger@vyatta.com> 1242921063 -0700
committer Paul Jakma <paul@quagga.net> 1245352708 +0100

[bgpd] reference count the BGP instance

When a BGP instance is deleted with lots of routes and neighbors
it is possible for the peer rsclient queue to run after
bgp_delete has been called. This would lead to bgpd crashing,
see https://bugzilla.vyatta.com/show_bug.cgi?id=3436

The fix is to add reference counting to the BGP instance and defer
actual freeing until all references are gone.

This patch also fixes a memory leak where the self-reference
peer instance was being created but never freed.

The check in bgp_clear_route is no longer valid because it is possible
for it to be called when peer is in Deleted state during cleanup.