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RDS: add stat for socket recv memory usage

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Tracks the receive side memory added to scokets and removed from sockets.

Signed-off-by: Venkat Venkatsubra <venkat.x.venkatsubra@oracle.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
This commit is contained in:
Venkat Venkatsubra 2016-07-09 17:36:20 -07:00 committed by Santosh Shilimkar
parent cf657269d3
commit 192a798f52
2 changed files with 7 additions and 0 deletions
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3
net/rds/rds.h
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@ -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 */

4
net/rds/recv.c
View File

@ -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 "