fat: Fix _fat_bmap() race

[linux-2.6-omap-h63xx.git] / net / rose / rose_route.c

diff --git a/net/rose/rose_route.c b/net/rose/rose_route.c
index bd593871c81eff0b36cc1bf1de6ba0573731eb17..a81066a1010a869fa4885d7f3334df3195cfec25 100644 (file)
--- a/net/rose/rose_route.c
+++ b/net/rose/rose_route.c
@@ -662,27 +662,34 @@ struct rose_route *rose_route_free_lci(unsigned int lci, struct rose_neigh *neig
 }
 
 /*
- *     Find a neighbour given a ROSE address.
+ *     Find a neighbour or a route given a ROSE address.
  */
 struct rose_neigh *rose_get_neigh(rose_address *addr, unsigned char *cause,
-       unsigned char *diagnostic)
+       unsigned char *diagnostic, int new)
 {
        struct rose_neigh *res = NULL;
        struct rose_node *node;
        int failed = 0;
        int i;
 
-       spin_lock_bh(&rose_node_list_lock);
+       if (!new) spin_lock_bh(&rose_node_list_lock);
        for (node = rose_node_list; node != NULL; node = node->next) {
                if (rosecmpm(addr, &node->address, node->mask) == 0) {
                        for (i = 0; i < node->count; i++) {
-                               if (!rose_ftimer_running(node->neighbour[i])) {
-                                       res = node->neighbour[i];
-                                       goto out;
-                               } else
-                                       failed = 1;
+                               if (new) {
+                                       if (node->neighbour[i]->restarted) {
+                                               res = node->neighbour[i];
+                                               goto out;
+                                       }
+                               }
+                               else {
+                                       if (!rose_ftimer_running(node->neighbour[i])) {
+                                               res = node->neighbour[i];
+                                               goto out;
+                                       } else
+                                               failed = 1;
+                               }
                        }
-                       break;
                }
        }
 
@@ -695,7 +702,7 @@ struct rose_neigh *rose_get_neigh(rose_address *addr, unsigned char *cause,
        }
 
 out:
-       spin_unlock_bh(&rose_node_list_lock);
+       if (!new) spin_unlock_bh(&rose_node_list_lock);
 
        return res;
 }
@@ -1018,7 +1025,7 @@ int rose_route_frame(struct sk_buff *skb, ax25_cb *ax25)
                rose_route = rose_route->next;
        }
 
-       if ((new_neigh = rose_get_neigh(dest_addr, &cause, &diagnostic)) == NULL) {
+       if ((new_neigh = rose_get_neigh(dest_addr, &cause, &diagnostic, 1)) == NULL) {
                rose_transmit_clear_request(rose_neigh, lci, cause, diagnostic);
                goto out;
        }