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Diffstat (limited to 'net/tipc/link.c')
-rw-r--r--net/tipc/link.c40
1 files changed, 6 insertions, 34 deletions
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 229d478494b9..c723ee90219d 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -835,7 +835,6 @@ int tipc_link_xmit(struct sk_buff *buf, u32 dest, u32 selector)
struct tipc_node *n_ptr;
int res = -ELINKCONG;
- read_lock_bh(&tipc_net_lock);
n_ptr = tipc_node_find(dest);
if (n_ptr) {
tipc_node_lock(n_ptr);
@@ -848,7 +847,6 @@ int tipc_link_xmit(struct sk_buff *buf, u32 dest, u32 selector)
} else {
kfree_skb(buf);
}
- read_unlock_bh(&tipc_net_lock);
return res;
}
@@ -912,7 +910,6 @@ void tipc_link_names_xmit(struct list_head *message_list, u32 dest)
if (list_empty(message_list))
return;
- read_lock_bh(&tipc_net_lock);
n_ptr = tipc_node_find(dest);
if (n_ptr) {
tipc_node_lock(n_ptr);
@@ -927,7 +924,6 @@ void tipc_link_names_xmit(struct list_head *message_list, u32 dest)
}
tipc_node_unlock(n_ptr);
}
- read_unlock_bh(&tipc_net_lock);
/* discard the messages if they couldn't be sent */
list_for_each_safe(buf, temp_buf, ((struct sk_buff *)message_list)) {
@@ -989,7 +985,6 @@ again:
if (unlikely(res < 0))
return res;
- read_lock_bh(&tipc_net_lock);
node = tipc_node_find(destaddr);
if (likely(node)) {
tipc_node_lock(node);
@@ -1000,7 +995,6 @@ again:
&sender->max_pkt);
exit:
tipc_node_unlock(node);
- read_unlock_bh(&tipc_net_lock);
return res;
}
@@ -1017,7 +1011,6 @@ exit:
*/
sender->max_pkt = l_ptr->max_pkt;
tipc_node_unlock(node);
- read_unlock_bh(&tipc_net_lock);
if ((msg_hdr_sz(hdr) + res) <= sender->max_pkt)
@@ -1028,7 +1021,6 @@ exit:
}
tipc_node_unlock(node);
}
- read_unlock_bh(&tipc_net_lock);
/* Couldn't find a link to the destination node */
kfree_skb(buf);
@@ -1273,12 +1265,9 @@ static void link_reset_all(unsigned long addr)
char addr_string[16];
u32 i;
- read_lock_bh(&tipc_net_lock);
n_ptr = tipc_node_find((u32)addr);
- if (!n_ptr) {
- read_unlock_bh(&tipc_net_lock);
+ if (!n_ptr)
return; /* node no longer exists */
- }
tipc_node_lock(n_ptr);
@@ -1293,7 +1282,6 @@ static void link_reset_all(unsigned long addr)
}
tipc_node_unlock(n_ptr);
- read_unlock_bh(&tipc_net_lock);
}
static void link_retransmit_failure(struct tipc_link *l_ptr,
@@ -1458,7 +1446,6 @@ static int link_recv_buf_validate(struct sk_buff *buf)
*/
void tipc_rcv(struct sk_buff *head, struct tipc_bearer *b_ptr)
{
- read_lock_bh(&tipc_net_lock);
while (head) {
struct tipc_node *n_ptr;
struct tipc_link *l_ptr;
@@ -1646,7 +1633,6 @@ unlock_discard:
discard:
kfree_skb(buf);
}
- read_unlock_bh(&tipc_net_lock);
}
/**
@@ -2408,8 +2394,6 @@ void tipc_link_set_queue_limits(struct tipc_link *l_ptr, u32 window)
/* tipc_link_find_owner - locate owner node of link by link's name
* @name: pointer to link name string
* @bearer_id: pointer to index in 'node->links' array where the link was found.
- * Caller must hold 'tipc_net_lock' to ensure node and bearer are not deleted;
- * this also prevents link deletion.
*
* Returns pointer to node owning the link, or 0 if no matching link is found.
*/
@@ -2471,7 +2455,7 @@ static int link_value_is_valid(u16 cmd, u32 new_value)
* @new_value: new value of link, bearer, or media setting
* @cmd: which link, bearer, or media attribute to set (TIPC_CMD_SET_LINK_*)
*
- * Caller must hold 'tipc_net_lock' to ensure link/bearer/media is not deleted.
+ * Caller must hold RTNL lock to ensure link/bearer/media is not deleted.
*
* Returns 0 if value updated and negative value on error.
*/
@@ -2577,9 +2561,7 @@ struct sk_buff *tipc_link_cmd_config(const void *req_tlv_area, int req_tlv_space
" (cannot change setting on broadcast link)");
}
- read_lock_bh(&tipc_net_lock);
res = link_cmd_set_value(args->name, new_value, cmd);
- read_unlock_bh(&tipc_net_lock);
if (res)
return tipc_cfg_reply_error_string("cannot change link setting");
@@ -2613,22 +2595,18 @@ struct sk_buff *tipc_link_cmd_reset_stats(const void *req_tlv_area, int req_tlv_
return tipc_cfg_reply_error_string("link not found");
return tipc_cfg_reply_none();
}
- read_lock_bh(&tipc_net_lock);
node = tipc_link_find_owner(link_name, &bearer_id);
- if (!node) {
- read_unlock_bh(&tipc_net_lock);
+ if (!node)
return tipc_cfg_reply_error_string("link not found");
- }
+
tipc_node_lock(node);
l_ptr = node->links[bearer_id];
if (!l_ptr) {
tipc_node_unlock(node);
- read_unlock_bh(&tipc_net_lock);
return tipc_cfg_reply_error_string("link not found");
}
link_reset_statistics(l_ptr);
tipc_node_unlock(node);
- read_unlock_bh(&tipc_net_lock);
return tipc_cfg_reply_none();
}
@@ -2661,18 +2639,15 @@ static int tipc_link_stats(const char *name, char *buf, const u32 buf_size)
if (!strcmp(name, tipc_bclink_name))
return tipc_bclink_stats(buf, buf_size);
- read_lock_bh(&tipc_net_lock);
node = tipc_link_find_owner(name, &bearer_id);
- if (!node) {
- read_unlock_bh(&tipc_net_lock);
+ if (!node)
return 0;
- }
+
tipc_node_lock(node);
l = node->links[bearer_id];
if (!l) {
tipc_node_unlock(node);
- read_unlock_bh(&tipc_net_lock);
return 0;
}
@@ -2738,7 +2713,6 @@ static int tipc_link_stats(const char *name, char *buf, const u32 buf_size)
(s->accu_queue_sz / s->queue_sz_counts) : 0);
tipc_node_unlock(node);
- read_unlock_bh(&tipc_net_lock);
return ret;
}
@@ -2789,7 +2763,6 @@ u32 tipc_link_get_max_pkt(u32 dest, u32 selector)
if (dest == tipc_own_addr)
return MAX_MSG_SIZE;
- read_lock_bh(&tipc_net_lock);
n_ptr = tipc_node_find(dest);
if (n_ptr) {
tipc_node_lock(n_ptr);
@@ -2798,7 +2771,6 @@ u32 tipc_link_get_max_pkt(u32 dest, u32 selector)
res = l_ptr->max_pkt;
tipc_node_unlock(n_ptr);
}
- read_unlock_bh(&tipc_net_lock);
return res;
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-04 13:19:00 +0000