[net-next][PATCH 15/18] RDS: add stat for socket recv memory usage
From: Santosh Shilimkar <hidden>
Date: 2016-12-05 07:01:05
Also in:
lkml
Subsystem:
networking [general], rds - reliable datagram sockets, the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Allison Henderson, Linus Torvalds
From: Venkat Venkatsubra <redacted> Tracks the receive side memory added to scokets and removed from sockets. Signed-off-by: Venkat Venkatsubra <redacted> Signed-off-by: Santosh Shilimkar <redacted> --- net/rds/rds.h | 3 +++ net/rds/recv.c | 4 ++++ 2 files changed, 7 insertions(+)
diff --git a/net/rds/rds.h b/net/rds/rds.h
index 0bb8213..8ccd5a9 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h@@ -631,6 +631,9 @@ struct rds_statistics { uint64_t s_cong_update_received; uint64_t s_cong_send_error; uint64_t s_cong_send_blocked; + uint64_t s_recv_bytes_added_to_socket; + uint64_t s_recv_bytes_removed_from_socket; + }; /* af_rds.c */
diff --git a/net/rds/recv.c b/net/rds/recv.c
index 9d0666e..ba19eee 100644
--- a/net/rds/recv.c
+++ b/net/rds/recv.c@@ -94,6 +94,10 @@ static void rds_recv_rcvbuf_delta(struct rds_sock *rs, struct sock *sk, return; rs->rs_rcv_bytes += delta; + if (delta > 0) + rds_stats_add(s_recv_bytes_added_to_socket, delta); + else + rds_stats_add(s_recv_bytes_removed_from_socket, -delta); now_congested = rs->rs_rcv_bytes > rds_sk_rcvbuf(rs); rdsdebug("rs %p (%pI4:%u) recv bytes %d buf %d "
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1.9.1