tree e54c8857773a3e54c213dd4f825b48fdd7ab295e
parent 71092ea122062012f8e4b7fb2f9a747212d1479c
author Allan Stephens <Allan.Stephens@windriver.com> 1298571620 -0500
committer Paul Gortmaker <paul.gortmaker@windriver.com> 1300048516 -0400

tipc: Fix problem with missing link in "tipc-config -l" output

Removes a race condition that could cause TIPC's internal counter
of the number of links it has to neighboring nodes to have the
incorrect value if two independent threads of control simultaneously
create new link endpoints connecting to two different nodes using two
different bearers. Such under counting would result in TIPC failing to
list the final link(s) in its response to a configuration request to
list all of the node's links. The counter is now updated atomically
to ensure that simultaneous increments do not interfere with each
other.

Thanks go to Peter Butler <pbutler@pt.com> for his assistance in
diagnosing and fixing this problem.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>