Commit 1635bb54 authored by Zhu Yanjun's avatar Zhu Yanjun Committed by David S. Miller
Browse files

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: default avatarSantosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: default avatarZhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0185e2e6

net/rds/recv.c

+1 −4
Original line number Diff line number Diff line
@@ -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);