Hello,
I really apologize for not replying to this mail sooner.
Herbert Xu wrote:
> On Mon, Dec 03, 2007 at 07:10:45PM -0500, Hideo AOKI wrote:
>> Because we have to call wmem_schedule function in ip_append_data()
>> which is used by several protocols both stream and datagram.
>> I just thought adding the sk_wmem_schedule() was only way to call
>> proper function from ip_append_data().
>
> ip_append_data can't possibly work for stream protocols. So
> which stream protocol is calling it?
I think TCP could call ip_append_data(). Here is possible call graph.
tcp_v4_rcv()
-> tcp_v4_timewait_ack()
-> tcp_v4_send_ack()
-> ip_send_reply()
-> *ip_append_data()*
tcp_v4_reqsk_send_ack()
-> tcp_v4_send_ack()
-> ip_send_reply()
-> *ip_append_data()*
tcp_v4_do_rcv()
-> tcp_v4_send_reset()
-> ip_send_reply()
-> *ip_append_data()*
Regards,
Hideo
--
Hitachi Computer Products (America) Inc.
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