> -----Original Message-----
> From: Xin Long [mailto:lucien....@gmail.com]
> Sent: 26 March 2017 17:21
> To: network dev; linux-s...@vger.kernel.org
> Cc: da...@davemloft.net; Marcelo Ricardo Leitner; Neil Horman; David Laight
> Subject: [PATCHv2 net] sctp: change to save MSG_MORE flag into assoc
>
> David Laight noticed the support for MSG_MORE with datamsg->force_delay
> didn't really work as we expected, as the first msg with MSG_MORE set
> would always block the following chunks' dequeuing.
>
> This Patch is to rewrite it by saving the MSG_MORE flag into assoc as
> David Laight suggested.
>
> asoc->force_delay is used to save MSG_MORE flag before a msg is sent.
> All chunks in queue would not be sent out if asoc->force_delay is set
> by the msg with MSG_MORE flag, until a new msg without MSG_MORE flag
> clears asoc->force_delay.
>
> Note that this change would not affect the flush is generated by other
> triggers, like asoc->state != ESTABLISHED, queue size > pmtu etc.
>
> v1->v2:
> Not clear asoc->force_delay after sending the msg with MSG_MORE flag.
>
> Fixes: 4ea0c32f5f42 ("sctp: add support for MSG_MORE")
> Signed-off-by: Xin Long <lucien....@gmail.com>
> ---
Acked-by: David Laight <david.lai...@aculab.com>
I'll get around to testing it yet :-)
David
