From: Zhu Yanjun Date: Mon, 17 Sep 2018 02:49:30 +0000 (-0400) Subject: net: rds: use memset to optimize the recv X-Git-Tag: v5.4-rc1~2266^2~359 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=1635bb548f846804af3054872fbd1395783ac03e;p=platform%2Fkernel%2Flinux-rpi.git net: rds: use memset to optimize the recv The function rds_inc_init is in recv process. To use memset can optimize the function rds_inc_init. The test result: Before: 1) + 24.950 us | rds_inc_init [rds](); After: 1) + 10.990 us | rds_inc_init [rds](); Acked-by: Santosh Shilimkar Signed-off-by: Zhu Yanjun Signed-off-by: David S. Miller --- diff --git a/net/rds/recv.c b/net/rds/recv.c index 1271965..727639d 100644 --- a/net/rds/recv.c +++ b/net/rds/recv.c @@ -43,8 +43,6 @@ void rds_inc_init(struct rds_incoming *inc, struct rds_connection *conn, struct in6_addr *saddr) { - int i; - refcount_set(&inc->i_refcount, 1); INIT_LIST_HEAD(&inc->i_item); inc->i_conn = conn; @@ -52,8 +50,7 @@ void rds_inc_init(struct rds_incoming *inc, struct rds_connection *conn, inc->i_rdma_cookie = 0; inc->i_rx_tstamp = ktime_set(0, 0); - for (i = 0; i < RDS_RX_MAX_TRACES; i++) - inc->i_rx_lat_trace[i] = 0; + memset(inc->i_rx_lat_trace, 0, sizeof(inc->i_rx_lat_trace)); } EXPORT_SYMBOL_GPL(rds_inc_init);