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tipc: make broadcast bearer store in bearer_list array 

Now unicast bearer is dynamically allocated and placed into its
identity specified slot of bearer_list array. When we search
bearer_list array with a bearer identity, the corresponding bearer
instance can be found. But broadcast bearer is statically allocated
and it is not located in the bearer_list array yet. So we decide to
enlarge bearer_list array into MAX_BEARERS + 1 slots, and its last
slot stores the broadcast bearer so that the broadcast bearer can
be found from bearer_list array with MAX_BEARERS as index. The
change will help us reduce the complex relationship between bearer
and link in the future.

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 2014-03-27 12:54:35 +08:00 committed by David S. Miller
parent f47de12b06
commit 987b58be37
2 changed files with 6 additions and 4 deletions
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8
net/tipc/bcast.c
View File

@ -41,9 +41,9 @@
#include "bcast.h"
#include "name_distr.h"
#define MAX_PKT_DEFAULT_MCAST 1500 /* bcast link max packet size (fixed) */
#define BCLINK_WIN_DEFAULT 20 /* bcast link window size (default) */
#define MAX_PKT_DEFAULT_MCAST 1500 /* bcast link max packet size (fixed) */
#define BCLINK_WIN_DEFAULT 20 /* bcast link window size (default) */
#define BCBEARER MAX_BEARERS
/**
* struct tipc_bcbearer_pair - a pair of bearers used by broadcast link
@ -784,6 +784,7 @@ void tipc_bclink_init(void)
bcl->max_pkt = MAX_PKT_DEFAULT_MCAST;
tipc_link_set_queue_limits(bcl, BCLINK_WIN_DEFAULT);
bcl->b_ptr = &bcbearer->bearer;
bearer_list[BCBEARER] = &bcbearer->bearer;
bcl->state = WORKING_WORKING;
strlcpy(bcl->name, tipc_bclink_name, TIPC_MAX_LINK_NAME);
}
@ -794,6 +795,7 @@ void tipc_bclink_stop(void)
tipc_link_purge_queues(bcl);
spin_unlock_bh(&bc_lock);
bearer_list[BCBEARER] = NULL;
memset(bclink, 0, sizeof(*bclink));
memset(bcbearer, 0, sizeof(*bcbearer));
}

2
net/tipc/bearer.c
View File

@ -49,7 +49,7 @@ static struct tipc_media * const media_info_array[] = {
NULL
};
struct tipc_bearer *bearer_list[MAX_BEARERS];
struct tipc_bearer *bearer_list[MAX_BEARERS + 1];
static void bearer_disable(struct tipc_bearer *b_ptr, bool shutting_down);