tree 8f39575febf0319570798117f8738f5127084634
parent 84e8b803f1e16f3a2b8b80f80a63fa2f2f8a9be6
author stephen hemminger <shemminger@vyatta.com> 1267604399 +0000
committer David S. Miller <davem@davemloft.net> 1267691974 -0800

IPv6: fix race between cleanup and add/delete address

This solves a potential race problem during the cleanup process.
The issue is that addrconf_ifdown() needs to traverse address list,
but then drop lock to call the notifier. The version in -next
could get confused if add/delete happened during this window.
Original code (2.6.32 and earlier) was okay because all addresses
were always deleted.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>