On Thu, Feb 15, 2018 at 2:46 PM, Santosh Shilimkar <santosh.shilim...@oracle.com> wrote: > On 2/15/2018 10:49 AM, Sowmini Varadhan wrote: >> >> RDS removes a datagram (rds_message) from the retransmit queue when >> an ACK is received. The ACK indicates that the receiver has queued >> the RDS datagram, so that the sender can safely forget the datagram. >> When all references to the rds_message are quiesced, rds_message_purge >> is called to release resources used by the rds_message >> >> If the datagram to be removed had pinned pages set up, add >> an entry to the rs->rs_znotify_queue so that the notifcation >> will be sent up via rds_rm_zerocopy_callback() when the >> rds_message is eventually freed by rds_message_purge. >> >> rds_rm_zerocopy_callback() attempts to batch the number of cookies >> sent with each notification to a max of SO_EE_ORIGIN_MAX_ZCOOKIES. >> This is achieved by checking the tail skb in the sk_error_queue: >> if this has room for one more cookie, the cookie from the >> current notification is added; else a new skb is added to the >> sk_error_queue. Every invocation of rds_rm_zerocopy_callback() will >> trigger a ->sk_error_report to notify the application. >> >> Signed-off-by: Sowmini Varadhan <sowmini.varad...@oracle.com> >> --- > > Acked-by: Santosh Shilimkar <santosh.shilim...@oracle.com>
Acked-by: Willem de Bruijn <will...@google.com>
