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authorVenkat Venkatsubra <venkat.x.venkatsubra@oracle.com>2016-07-10 03:36:20 +0300
committerSantosh Shilimkar <santosh.shilimkar@oracle.com>2017-01-03 01:02:56 +0300
commit192a798f52998a643cef84fce0204be56666b0bf (patch)
treea4db3cb8d4d45ea005c06bbb8e6298e3fa03faba
parentcf657269d311d575eb196c7045579b3443631b8b (diff)
downloadlinux-192a798f52998a643cef84fce0204be56666b0bf.tar.xz
RDS: add stat for socket recv memory usage
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>
-rw-r--r--net/rds/rds.h3
-rw-r--r--net/rds/recv.c4
2 files changed, 7 insertions, 0 deletions
diff --git a/net/rds/rds.h b/net/rds/rds.h
index 0bb8213c7d0b..8ccd5a93e56c 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 9d0666e5fe35..ba19eeeae85a 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 "