From: Rainer Weikusat <rweiku...@mobileactivedefense.com> Date: Sun, 06 Dec 2015 21:11:34 +0000
> The __skb_recv_datagram routine in core/ datagram.c provides a general > skb reception factility supposed to be utilized by protocol modules > providing datagram sockets. It encompasses both the actual recvmsg code > and a surrounding 'sleep until data is available' loop. This is > inconvenient if a protocol module has to use additional locking in order > to maintain some per-socket state the generic datagram socket code is > unaware of (as the af_unix code does). The patch below moves the recvmsg > proper code into a new __skb_try_recv_datagram routine which doesn't > sleep and renames wait_for_more_packets to > __skb_wait_for_more_packets, both routines being exported interfaces. The > original __skb_recv_datagram routine is reimplemented on top of these > two functions such that its user-visible behaviour remains unchanged. > > Signed-Off-By: Rainer Weikusat <rweiku...@mobileactivedefense.com> Applied to net-next. -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
