xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tipc: avoid to asynchronously notify subscriptions

Browse Source 
Postpone the actions of notifying subscriptions until after node lock
is released, avoiding to asynchronously execute registered handlers
when node is lost.

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>
This commit is contained in:
Ying Xue
2014-05-05 08:56:12 +08:00
committed by David S. Miller
parent 10f465c496
commit 9db9fdd198
4 changed files with 33 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
net/tipc/node.h
View File

@@ -51,11 +51,14 @@
* TIPC_NODE_DOWN: indicate node is down
* TIPC_NAMES_GONE: indicate the node's publications are purged
* TIPC_NODE_RESET: indicate node is reset
* TIPC_NODE_LOST: indicate node is lost and it's used to notify subscriptions
* when node lock is released
*/
enum {
TIPC_NODE_DOWN = (1 << 1),
TIPC_NAMES_GONE = (1 << 2),
TIPC_NODE_RESET = (1 << 3)
TIPC_NODE_RESET = (1 << 3),
TIPC_NODE_LOST = (1 << 4)
};
/**
@@ -130,15 +133,11 @@ int tipc_node_is_up(struct tipc_node *n_ptr);
struct sk_buff *tipc_node_get_links(const void *req_tlv_area, int req_tlv_space);
struct sk_buff *tipc_node_get_nodes(const void *req_tlv_area, int req_tlv_space);
int tipc_node_get_linkname(u32 bearer_id, u32 node, char *linkname, size_t len);
void tipc_node_unlock(struct tipc_node *node);
static inline void tipc_node_lock(struct tipc_node *n_ptr)
static inline void tipc_node_lock(struct tipc_node *node)
{
spin_lock_bh(&n_ptr->lock);
}
static inline void tipc_node_unlock(struct tipc_node *n_ptr)
{
spin_unlock_bh(&n_ptr->lock);
spin_lock_bh(&node->lock);
}
static inline bool tipc_node_blocked(struct tipc_node *node)