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tipc: Ensure broadcast link spinlock is held when updating node map

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Fixes oversight that allowed broadcast link node map to be updated without
first taking the broadcast link spinlock that protects the map. As part
of this fix the node map has been incorporated into the broadcast link
structure to make the need for such protection more evident.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
This commit is contained in:
Allan Stephens
2011-10-24 11:18:12 -04:00
committed by Paul Gortmaker
parent c47e9b9188
commit cd3decdfd1
3 changed files with 22 additions and 10 deletions
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4
net/tipc/bcast.h
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@@ -51,8 +51,6 @@ struct tipc_node_map {
u32 map[MAX_NODES / WSIZE];
};
extern struct tipc_node_map tipc_bcast_nmap;
#define PLSIZE 32
/**
@@ -90,6 +88,8 @@ void tipc_port_list_free(struct port_list *pl_ptr);
void tipc_bclink_init(void);
void tipc_bclink_stop(void);
void tipc_bclink_add_node(u32 addr);
void tipc_bclink_remove_node(u32 addr);
struct tipc_node *tipc_bclink_retransmit_to(void);
void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked);
int tipc_bclink_send_msg(struct sk_buff *buf);