On Tue, Aug 08, 2017 at 11:13:32AM +0200, Håkon Bugge wrote:
> In commit 7e3f2952eeb1 ("rds: don't let RDS shutdown a connection
> while senders are present"), refilling the receive queue was removed
> from rds_ib_recv(), along with the increment of
> s_ib_rx_refill_from_thread.
>
> Commit 73ce4317bf98 ("RDS: make sure we post recv buffers")
> re-introduces filling the receive queue from rds_ib_recv(), but does
> not add the statistics counter. rds_ib_recv() was later renamed to
> rds_ib_recv_path().
>
> This commit reintroduces the statistics counting of
> s_ib_rx_refill_from_thread and s_ib_rx_refill_from_cq.
>
> Signed-off-by: Håkon Bugge <haakon.bugge@xxxxxxxxxx>
> Reviewed-by: Knut Omang <knut.omang@xxxxxxxxxx>
> Reviewed-by: Wei Lin Guay <wei.lin.guay@xxxxxxxxxx>
> ---
> net/rds/ib_recv.c | 5 ++++-
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
> index e10624a..9722bf8 100644
> --- a/net/rds/ib_recv.c
> +++ b/net/rds/ib_recv.c
> @@ -1015,8 +1015,10 @@ void rds_ib_recv_cqe_handler(struct rds_ib_connection *ic,
> if (rds_ib_ring_empty(&ic->i_recv_ring))
> rds_ib_stats_inc(s_ib_rx_ring_empty);
>
> - if (rds_ib_ring_low(&ic->i_recv_ring))
> + if (rds_ib_ring_low(&ic->i_recv_ring)) {
> rds_ib_recv_refill(conn, 0, GFP_NOWAIT);
> + rds_ib_stats_inc(s_ib_rx_refill_from_cq);
> + }
> }
>
> int rds_ib_recv_path(struct rds_conn_path *cp)
> @@ -1029,6 +1031,7 @@ int rds_ib_recv_path(struct rds_conn_path *cp)
> if (rds_conn_up(conn)) {
> rds_ib_attempt_ack(ic);
> rds_ib_recv_refill(conn, 0, GFP_KERNEL);
> + rds_ib_stats_inc(s_ib_rx_refill_from_thread);
> }
>
> return ret;
> --
> 2.9.3
>
Reviewed-by: Shamir Rabinovitch <shamir.rabinovitch@xxxxxxxxxx>
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