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tipc: Introduce routine to enqueue a chain of messages on link tx queue

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Create a helper routine to enqueue a chain of sk_buffs to a link's
transmit queue.  It improves readability and the new function is
anticipated to be used more than just once in the future as well.

Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
This commit is contained in:
Allan Stephens 2011-04-21 11:50:42 -04:00 • committed by Paul Gortmaker
parent 2689690469
commit dc63d91eb1
1 changed files with 22 additions and 16 deletions
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38
net/tipc/link.c
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@ -843,6 +843,25 @@ static void link_add_to_outqueue(struct link *l_ptr,
l_ptr->stats.max_queue_sz = l_ptr->out_queue_size; l_ptr->stats.max_queue_sz = l_ptr->out_queue_size;
} }
static void link_add_chain_to_outqueue(struct link *l_ptr,
struct sk_buff *buf_chain,
u32 long_msgno)
{
struct sk_buff *buf;
struct tipc_msg *msg;
if (!l_ptr->next_out)
l_ptr->next_out = buf_chain;
while (buf_chain) {
buf = buf_chain;
buf_chain = buf_chain->next;
msg = buf_msg(buf);
msg_set_long_msgno(msg, long_msgno);
link_add_to_outqueue(l_ptr, buf, msg);
}
}
/* /*
* tipc_link_send_buf() is the 'full path' for messages, called from * tipc_link_send_buf() is the 'full path' for messages, called from
* inside TIPC when the 'fast path' in tipc_send_buf * inside TIPC when the 'fast path' in tipc_send_buf
@ -1276,25 +1295,12 @@ reject:
total_len, TIPC_ERR_NO_NODE); total_len, TIPC_ERR_NO_NODE);
} }
/* Append whole chain to send queue: */ /* Append chain of fragments to send queue & send them */
buf = buf_chain;
l_ptr->long_msg_seq_no++; l_ptr->long_msg_seq_no++;
if (!l_ptr->next_out) link_add_chain_to_outqueue(l_ptr, buf_chain, l_ptr->long_msg_seq_no);
l_ptr->next_out = buf_chain; l_ptr->stats.sent_fragments += fragm_no;
l_ptr->stats.sent_fragmented++; l_ptr->stats.sent_fragmented++;
while (buf) {
struct sk_buff *next = buf->next;
struct tipc_msg *msg = buf_msg(buf);
l_ptr->stats.sent_fragments++;
msg_set_long_msgno(msg, l_ptr->long_msg_seq_no);
link_add_to_outqueue(l_ptr, buf, msg);
buf = next;
}
/* Send it, if possible: */
tipc_link_push_queue(l_ptr); tipc_link_push_queue(l_ptr);
tipc_node_unlock(node); tipc_node_unlock(node);
return dsz; return dsz;