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tipc: reverse call order for link_reset()->node_link_down()

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In many cases the call order when a link is reset goes as follows:
tipc_node_xx()->tipc_link_reset()->tipc_node_link_down()

This is not the right order if we want the node to be in control,
so in this commit we change the order to:
tipc_node_xx()->tipc_node_link_down()->tipc_link_reset()

The fact that tipc_link_reset() now is called from only one
location with a well-defined state will also facilitate later
simplifications of tipc_link_reset() and the link FSM.

Tested-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jon Paul Maloy
2015-07-30 18:24:17 -04:00
committed by David S. Miller
parent 6144a996a6
commit 655fb243b8
2 changed files with 22 additions and 14 deletions
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6
net/tipc/link.c
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@@ -566,7 +566,6 @@ void tipc_link_purge_queues(struct tipc_link *l_ptr)
void tipc_link_reset(struct tipc_link *l_ptr)
{
u32 prev_state = l_ptr->state;
int was_active_link = tipc_link_is_active(l_ptr);
struct tipc_node *owner = l_ptr->owner;
struct tipc_link *pl = tipc_parallel_link(l_ptr);
@@ -584,10 +583,7 @@ void tipc_link_reset(struct tipc_link *l_ptr)
(prev_state == TIPC_LINK_ESTABLISHING))
return;
tipc_node_link_down(l_ptr->owner, l_ptr->bearer_id);
tipc_bearer_remove_dest(owner->net, l_ptr->bearer_id, l_ptr->addr);
if (was_active_link && tipc_node_is_up(l_ptr->owner) && (pl != l_ptr)) {
if (tipc_node_is_up(l_ptr->owner) && (pl != l_ptr)) {
l_ptr->exec_mode = TIPC_LINK_BLOCKED;
l_ptr->failover_checkpt = l_ptr->rcv_nxt;
pl->failover_pkts = FIRST_FAILOVER;