summaryrefslogtreecommitdiffstats
path: root/net/tipc
diff options
context:
space:
mode:
authorYing Xue <ying.xue@windriver.com>2014-05-05 08:56:11 +0800
committerDavid S. Miller <davem@davemloft.net>2014-05-05 17:26:44 -0400
commit10f465c4966fbc8f50a59480d37a3451f6f3d564 (patch)
treef94a16d100710b23ff3c3069a76bc942f32edc00 /net/tipc
parent486f930ac546914550b84abbc227867cc1be1f95 (diff)
downloadlinux-10f465c4966fbc8f50a59480d37a3451f6f3d564.tar.bz2
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>
Diffstat (limited to 'net/tipc')
-rw-r--r--net/tipc/link.c20
-rw-r--r--net/tipc/node.c6
-rw-r--r--net/tipc/node.h24
3 files changed, 31 insertions, 19 deletions
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 3a801452643d..ac074aaf104d 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1495,14 +1495,14 @@ void tipc_rcv(struct sk_buff *head, struct tipc_bearer *b_ptr)
goto unlock_discard;
/* Verify that communication with node is currently allowed */
- if ((n_ptr->block_setup & WAIT_PEER_DOWN) &&
- msg_user(msg) == LINK_PROTOCOL &&
- (msg_type(msg) == RESET_MSG ||
- msg_type(msg) == ACTIVATE_MSG) &&
- !msg_redundant_link(msg))
- n_ptr->block_setup &= ~WAIT_PEER_DOWN;
-
- if (n_ptr->block_setup)
+ if ((n_ptr->flags & TIPC_NODE_DOWN) &&
+ msg_user(msg) == LINK_PROTOCOL &&
+ (msg_type(msg) == RESET_MSG ||
+ msg_type(msg) == ACTIVATE_MSG) &&
+ !msg_redundant_link(msg))
+ n_ptr->flags &= ~TIPC_NODE_DOWN;
+
+ if (tipc_node_blocked(n_ptr))
goto unlock_discard;
/* Validate message sequence number info */
@@ -1744,7 +1744,7 @@ void tipc_link_proto_xmit(struct tipc_link *l_ptr, u32 msg_typ, int probe_msg,
return;
/* Abort non-RESET send if communication with node is prohibited */
- if ((l_ptr->owner->block_setup) && (msg_typ != RESET_MSG))
+ if ((tipc_node_blocked(l_ptr->owner)) && (msg_typ != RESET_MSG))
return;
/* Create protocol message with "out-of-sequence" sequence number */
@@ -1859,7 +1859,7 @@ static void tipc_link_proto_rcv(struct tipc_link *l_ptr, struct sk_buff *buf)
* peer has lost contact -- don't allow peer's links
* to reactivate before we recognize loss & clean up
*/
- l_ptr->owner->block_setup = WAIT_NODE_DOWN;
+ l_ptr->owner->flags = TIPC_NODE_RESET;
}
link_state_event(l_ptr, RESET_MSG);
diff --git a/net/tipc/node.c b/net/tipc/node.c
index 6d6543e88c2c..2b0a0849d4cc 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -108,7 +108,7 @@ struct tipc_node *tipc_node_create(u32 addr)
break;
}
list_add_tail_rcu(&n_ptr->list, &temp_node->list);
- n_ptr->block_setup = WAIT_PEER_DOWN;
+ n_ptr->flags = TIPC_NODE_DOWN;
n_ptr->signature = INVALID_NODE_SIG;
tipc_num_nodes++;
@@ -280,7 +280,7 @@ static void node_name_purge_complete(unsigned long node_addr)
n_ptr = tipc_node_find(node_addr);
if (n_ptr) {
tipc_node_lock(n_ptr);
- n_ptr->block_setup &= ~WAIT_NAMES_GONE;
+ n_ptr->flags &= ~TIPC_NAMES_GONE;
tipc_node_unlock(n_ptr);
}
}
@@ -324,7 +324,7 @@ static void node_lost_contact(struct tipc_node *n_ptr)
tipc_nodesub_notify(n_ptr);
/* Prevent re-contact with node until cleanup is done */
- n_ptr->block_setup = WAIT_PEER_DOWN | WAIT_NAMES_GONE;
+ n_ptr->flags = TIPC_NODE_DOWN | TIPC_NAMES_GONE;
tipc_k_signal((Handler)node_name_purge_complete, n_ptr->addr);
}
diff --git a/net/tipc/node.h b/net/tipc/node.h
index bb7f708ce19b..242b918ddd14 100644
--- a/net/tipc/node.h
+++ b/net/tipc/node.h
@@ -47,10 +47,16 @@
*/
#define INVALID_NODE_SIG 0x10000
-/* Flags used to block (re)establishment of contact with a neighboring node */
-#define WAIT_PEER_DOWN 0x0001 /* wait to see that peer's links are down */
-#define WAIT_NAMES_GONE 0x0002 /* wait for peer's publications to be purged */
-#define WAIT_NODE_DOWN 0x0004 /* wait until peer node is declared down */
+/* Flags used to block (re)establishment of contact with a neighboring node
+ * TIPC_NODE_DOWN: indicate node is down
+ * TIPC_NAMES_GONE: indicate the node's publications are purged
+ * TIPC_NODE_RESET: indicate node is reset
+ */
+enum {
+ TIPC_NODE_DOWN = (1 << 1),
+ TIPC_NAMES_GONE = (1 << 2),
+ TIPC_NODE_RESET = (1 << 3)
+};
/**
* struct tipc_node_bclink - TIPC node bclink structure
@@ -85,7 +91,7 @@ struct tipc_node_bclink {
* @hash: links to adjacent nodes in unsorted hash chain
* @active_links: pointers to active links to node
* @links: pointers to all links to node
- * @block_setup: bit mask of conditions preventing link establishment to node
+ * @flags: bit mask of conditions preventing link establishment to node
* @bclink: broadcast-related info
* @list: links to adjacent nodes in sorted list of cluster's nodes
* @working_links: number of working links to node (both active and standby)
@@ -100,7 +106,7 @@ struct tipc_node {
struct hlist_node hash;
struct tipc_link *active_links[2];
struct tipc_link *links[MAX_BEARERS];
- int block_setup;
+ unsigned int flags;
struct tipc_node_bclink bclink;
struct list_head list;
int link_cnt;
@@ -135,4 +141,10 @@ static inline void tipc_node_unlock(struct tipc_node *n_ptr)
spin_unlock_bh(&n_ptr->lock);
}
+static inline bool tipc_node_blocked(struct tipc_node *node)
+{
+ return (node->flags & (TIPC_NODE_DOWN | TIPC_NAMES_GONE |
+ TIPC_NODE_RESET));
+}
+
#endif