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authorJon Paul Maloy <jon.maloy@ericsson.com>2015-07-16 23:54:24 +0300
committerDavid S. Miller <davem@davemloft.net>2015-07-21 06:41:15 +0300
commitaf9b028e270fda6fb812d70d17d902297df1ceb5 (patch)
tree1a204c6d10d597d5db18908dc2066e980a78120d /net/tipc/name_distr.c
parent22d85c79428b8ca9a01623aa3e3a1fe29a30a119 (diff)
downloadlinux-af9b028e270fda6fb812d70d17d902297df1ceb5.tar.xz
tipc: make media xmit call outside node spinlock context
Currently, message sending is performed through a deep call chain, where the node spinlock is grabbed and held during a significant part of the transmission time. This is clearly detrimental to overall throughput performance; it would be better if we could send the message after the spinlock has been released. In this commit, we do instead let the call revert on the stack after the buffer chain has been added to the transmission queue, whereafter clones of the buffers are transmitted to the device layer outside the spinlock scope. As a further step in our effort to separate the roles of the node and link entities we also move the function tipc_link_xmit() to node.c, and rename it to tipc_node_xmit(). Reviewed-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/name_distr.c')
-rw-r--r--net/tipc/name_distr.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/tipc/name_distr.c b/net/tipc/name_distr.c
index 3a1539e96294..e6018b7eb197 100644
--- a/net/tipc/name_distr.c
+++ b/net/tipc/name_distr.c
@@ -102,7 +102,7 @@ void named_cluster_distribute(struct net *net, struct sk_buff *skb)
if (!oskb)
break;
msg_set_destnode(buf_msg(oskb), dnode);
- tipc_link_xmit_skb(net, oskb, dnode, dnode);
+ tipc_node_xmit_skb(net, oskb, dnode, dnode);
}
rcu_read_unlock();
@@ -223,7 +223,7 @@ void tipc_named_node_up(struct net *net, u32 dnode)
&tn->nametbl->publ_list[TIPC_ZONE_SCOPE]);
rcu_read_unlock();
- tipc_link_xmit(net, &head, dnode, dnode);
+ tipc_node_xmit(net, &head, dnode, dnode);
}
static void tipc_publ_subscribe(struct net *net, struct publication *publ,