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-rw-r--r--net/tipc/bcast.c58
1 files changed, 36 insertions, 22 deletions
diff --git a/net/tipc/bcast.c b/net/tipc/bcast.c
index a7b04f397c12..2c4ecbe50082 100644
--- a/net/tipc/bcast.c
+++ b/net/tipc/bcast.c
@@ -107,22 +107,22 @@ static spinlock_t bc_lock = SPIN_LOCK_UNLOCKED;
char tipc_bclink_name[] = "multicast-link";
-static inline u32 buf_seqno(struct sk_buff *buf)
+static u32 buf_seqno(struct sk_buff *buf)
{
return msg_seqno(buf_msg(buf));
}
-static inline u32 bcbuf_acks(struct sk_buff *buf)
+static u32 bcbuf_acks(struct sk_buff *buf)
{
return (u32)(unsigned long)TIPC_SKB_CB(buf)->handle;
}
-static inline void bcbuf_set_acks(struct sk_buff *buf, u32 acks)
+static void bcbuf_set_acks(struct sk_buff *buf, u32 acks)
{
TIPC_SKB_CB(buf)->handle = (void *)(unsigned long)acks;
}
-static inline void bcbuf_decr_acks(struct sk_buff *buf)
+static void bcbuf_decr_acks(struct sk_buff *buf)
{
bcbuf_set_acks(buf, bcbuf_acks(buf) - 1);
}
@@ -134,7 +134,7 @@ static inline void bcbuf_decr_acks(struct sk_buff *buf)
* Called with 'node' locked, bc_lock unlocked
*/
-static inline void bclink_set_gap(struct node *n_ptr)
+static void bclink_set_gap(struct node *n_ptr)
{
struct sk_buff *buf = n_ptr->bclink.deferred_head;
@@ -154,7 +154,7 @@ static inline void bclink_set_gap(struct node *n_ptr)
* distribute NACKs, but tries to use the same spacing (divide by 16).
*/
-static inline int bclink_ack_allowed(u32 n)
+static int bclink_ack_allowed(u32 n)
{
return((n % TIPC_MIN_LINK_WIN) == tipc_own_tag);
}
@@ -271,7 +271,7 @@ static void bclink_send_nack(struct node *n_ptr)
msg_set_bcgap_to(msg, n_ptr->bclink.gap_to);
msg_set_bcast_tag(msg, tipc_own_tag);
- if (tipc_bearer_send(&bcbearer->bearer, buf, 0)) {
+ if (tipc_bearer_send(&bcbearer->bearer, buf, NULL)) {
bcl->stats.sent_nacks++;
buf_discard(buf);
} else {
@@ -314,7 +314,7 @@ void tipc_bclink_check_gap(struct node *n_ptr, u32 last_sent)
* Only tipc_net_lock set.
*/
-void tipc_bclink_peek_nack(u32 dest, u32 sender_tag, u32 gap_after, u32 gap_to)
+static void tipc_bclink_peek_nack(u32 dest, u32 sender_tag, u32 gap_after, u32 gap_to)
{
struct node *n_ptr = tipc_node_find(dest);
u32 my_after, my_to;
@@ -425,9 +425,9 @@ void tipc_bclink_recv_pkt(struct sk_buff *buf)
msg_bcgap_to(msg));
} else {
tipc_bclink_peek_nack(msg_destnode(msg),
- msg_bcast_tag(msg),
- msg_bcgap_after(msg),
- msg_bcgap_to(msg));
+ msg_bcast_tag(msg),
+ msg_bcgap_after(msg),
+ msg_bcgap_to(msg));
}
buf_discard(buf);
return;
@@ -525,16 +525,18 @@ u32 tipc_bclink_acks_missing(struct node *n_ptr)
* Returns 0 if packet sent successfully, non-zero if not
*/
-int tipc_bcbearer_send(struct sk_buff *buf,
- struct tipc_bearer *unused1,
- struct tipc_media_addr *unused2)
+static int tipc_bcbearer_send(struct sk_buff *buf,
+ struct tipc_bearer *unused1,
+ struct tipc_media_addr *unused2)
{
static int send_count = 0;
- struct node_map remains;
- struct node_map remains_new;
+ struct node_map *remains;
+ struct node_map *remains_new;
+ struct node_map *remains_tmp;
int bp_index;
int swap_time;
+ int err;
/* Prepare buffer for broadcasting (if first time trying to send it) */
@@ -555,7 +557,9 @@ int tipc_bcbearer_send(struct sk_buff *buf,
/* Send buffer over bearers until all targets reached */
- remains = tipc_cltr_bcast_nodes;
+ remains = kmalloc(sizeof(struct node_map), GFP_ATOMIC);
+ remains_new = kmalloc(sizeof(struct node_map), GFP_ATOMIC);
+ *remains = tipc_cltr_bcast_nodes;
for (bp_index = 0; bp_index < MAX_BEARERS; bp_index++) {
struct bearer *p = bcbearer->bpairs[bp_index].primary;
@@ -564,8 +568,8 @@ int tipc_bcbearer_send(struct sk_buff *buf,
if (!p)
break; /* no more bearers to try */
- tipc_nmap_diff(&remains, &p->nodes, &remains_new);
- if (remains_new.count == remains.count)
+ tipc_nmap_diff(remains, &p->nodes, remains_new);
+ if (remains_new->count == remains->count)
continue; /* bearer pair doesn't add anything */
if (!p->publ.blocked &&
@@ -583,17 +587,27 @@ swap:
bcbearer->bpairs[bp_index].primary = s;
bcbearer->bpairs[bp_index].secondary = p;
update:
- if (remains_new.count == 0)
- return TIPC_OK;
+ if (remains_new->count == 0) {
+ err = TIPC_OK;
+ goto out;
+ }
+ /* swap map */
+ remains_tmp = remains;
remains = remains_new;
+ remains_new = remains_tmp;
}
/* Unable to reach all targets */
bcbearer->bearer.publ.blocked = 1;
bcl->stats.bearer_congs++;
- return ~TIPC_OK;
+ err = ~TIPC_OK;
+
+ out:
+ kfree(remains_new);
+ kfree(remains);
+ return err;
}
/**