tree 162b06a086e3adffc182da349179b9a69de89f21
parent c4fc298ab44011a7f7a391bf00350acf481eeaeb
author Ying Xue <ying.xue@windriver.com> 1351517895 -0400
committer Paul Gortmaker <paul.gortmaker@windriver.com> 1353546389 -0500

tipc: wake up all waiting threads at socket shutdown

When a socket is shut down, we should wake up all thread sleeping on
it, instead of just one of them. Otherwise, when several threads are
polling the same socket, and one of them does shutdown(), the
remaining threads may end up sleeping forever.

Also, to align socket usage with common practice in other stacks, we
use one of the common socket callback handlers, sk_state_change(),
to wake up pending users. This is similar to the usage in e.g.
inet_shutdown(). [net/ipv4/af_inet.c].

Signed-off-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>