tipc: rename setup_blocked variable of node struct to flags
Rename setup_blocked variable of node struct to a more common name called "flags", which will be used to represent kinds of node states. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Erik Hugne <erik.hugne@ericsson.com> Reviewed-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1495,14 +1495,14 @@ void tipc_rcv(struct sk_buff *head, struct tipc_bearer *b_ptr)
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goto unlock_discard;
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/* Verify that communication with node is currently allowed */
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if ((n_ptr->block_setup & WAIT_PEER_DOWN) &&
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msg_user(msg) == LINK_PROTOCOL &&
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(msg_type(msg) == RESET_MSG ||
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msg_type(msg) == ACTIVATE_MSG) &&
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!msg_redundant_link(msg))
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n_ptr->block_setup &= ~WAIT_PEER_DOWN;
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if ((n_ptr->flags & TIPC_NODE_DOWN) &&
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msg_user(msg) == LINK_PROTOCOL &&
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(msg_type(msg) == RESET_MSG ||
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msg_type(msg) == ACTIVATE_MSG) &&
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!msg_redundant_link(msg))
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n_ptr->flags &= ~TIPC_NODE_DOWN;
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if (n_ptr->block_setup)
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if (tipc_node_blocked(n_ptr))
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goto unlock_discard;
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/* Validate message sequence number info */
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@ -1744,7 +1744,7 @@ void tipc_link_proto_xmit(struct tipc_link *l_ptr, u32 msg_typ, int probe_msg,
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return;
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/* Abort non-RESET send if communication with node is prohibited */
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if ((l_ptr->owner->block_setup) && (msg_typ != RESET_MSG))
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if ((tipc_node_blocked(l_ptr->owner)) && (msg_typ != RESET_MSG))
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return;
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/* Create protocol message with "out-of-sequence" sequence number */
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@ -1859,7 +1859,7 @@ static void tipc_link_proto_rcv(struct tipc_link *l_ptr, struct sk_buff *buf)
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* peer has lost contact -- don't allow peer's links
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* to reactivate before we recognize loss & clean up
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*/
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l_ptr->owner->block_setup = WAIT_NODE_DOWN;
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l_ptr->owner->flags = TIPC_NODE_RESET;
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}
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link_state_event(l_ptr, RESET_MSG);
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@ -108,7 +108,7 @@ struct tipc_node *tipc_node_create(u32 addr)
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break;
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}
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list_add_tail_rcu(&n_ptr->list, &temp_node->list);
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n_ptr->block_setup = WAIT_PEER_DOWN;
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n_ptr->flags = TIPC_NODE_DOWN;
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n_ptr->signature = INVALID_NODE_SIG;
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tipc_num_nodes++;
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@ -280,7 +280,7 @@ static void node_name_purge_complete(unsigned long node_addr)
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n_ptr = tipc_node_find(node_addr);
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if (n_ptr) {
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tipc_node_lock(n_ptr);
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n_ptr->block_setup &= ~WAIT_NAMES_GONE;
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n_ptr->flags &= ~TIPC_NAMES_GONE;
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tipc_node_unlock(n_ptr);
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}
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}
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@ -324,7 +324,7 @@ static void node_lost_contact(struct tipc_node *n_ptr)
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tipc_nodesub_notify(n_ptr);
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/* Prevent re-contact with node until cleanup is done */
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n_ptr->block_setup = WAIT_PEER_DOWN | WAIT_NAMES_GONE;
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n_ptr->flags = TIPC_NODE_DOWN | TIPC_NAMES_GONE;
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tipc_k_signal((Handler)node_name_purge_complete, n_ptr->addr);
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}
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@ -47,10 +47,16 @@
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*/
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#define INVALID_NODE_SIG 0x10000
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/* Flags used to block (re)establishment of contact with a neighboring node */
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#define WAIT_PEER_DOWN 0x0001 /* wait to see that peer's links are down */
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#define WAIT_NAMES_GONE 0x0002 /* wait for peer's publications to be purged */
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#define WAIT_NODE_DOWN 0x0004 /* wait until peer node is declared down */
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/* Flags used to block (re)establishment of contact with a neighboring node
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* TIPC_NODE_DOWN: indicate node is down
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* TIPC_NAMES_GONE: indicate the node's publications are purged
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* TIPC_NODE_RESET: indicate node is reset
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*/
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enum {
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TIPC_NODE_DOWN = (1 << 1),
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TIPC_NAMES_GONE = (1 << 2),
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TIPC_NODE_RESET = (1 << 3)
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};
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/**
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* struct tipc_node_bclink - TIPC node bclink structure
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@ -85,7 +91,7 @@ struct tipc_node_bclink {
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* @hash: links to adjacent nodes in unsorted hash chain
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* @active_links: pointers to active links to node
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* @links: pointers to all links to node
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* @block_setup: bit mask of conditions preventing link establishment to node
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* @flags: bit mask of conditions preventing link establishment to node
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* @bclink: broadcast-related info
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* @list: links to adjacent nodes in sorted list of cluster's nodes
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* @working_links: number of working links to node (both active and standby)
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@ -100,7 +106,7 @@ struct tipc_node {
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struct hlist_node hash;
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struct tipc_link *active_links[2];
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struct tipc_link *links[MAX_BEARERS];
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int block_setup;
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unsigned int flags;
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struct tipc_node_bclink bclink;
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struct list_head list;
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int link_cnt;
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@ -135,4 +141,10 @@ static inline void tipc_node_unlock(struct tipc_node *n_ptr)
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spin_unlock_bh(&n_ptr->lock);
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}
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static inline bool tipc_node_blocked(struct tipc_node *node)
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{
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return (node->flags & (TIPC_NODE_DOWN | TIPC_NAMES_GONE |
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TIPC_NODE_RESET));
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}
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#endif
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