RDS: TCP: make receive path use the rds_conn_path
The ->sk_user_data contains a pointer to the rds_conn_path
for the socket. Use this consistently in the rds_tcp_data_ready
callbacks to get the rds_conn_path for rds_recv_incoming.
Acked-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: Sowmini Varadhan <sowmini.varadhan@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/rds/tcp_recv.c b/net/rds/tcp_recv.c
index aa7a79a..ad4892e 100644
--- a/net/rds/tcp_recv.c
+++ b/net/rds/tcp_recv.c
@@ -34,7 +34,6 @@
#include <linux/slab.h>
#include <net/tcp.h>
-#include "rds_single_path.h"
#include "rds.h"
#include "tcp.h"
@@ -148,7 +147,7 @@
}
struct rds_tcp_desc_arg {
- struct rds_connection *conn;
+ struct rds_conn_path *conn_path;
gfp_t gfp;
};
@@ -156,8 +155,8 @@
unsigned int offset, size_t len)
{
struct rds_tcp_desc_arg *arg = desc->arg.data;
- struct rds_connection *conn = arg->conn;
- struct rds_tcp_connection *tc = conn->c_transport_data;
+ struct rds_conn_path *cp = arg->conn_path;
+ struct rds_tcp_connection *tc = cp->cp_transport_data;
struct rds_tcp_incoming *tinc = tc->t_tinc;
struct sk_buff *clone;
size_t left = len, to_copy;
@@ -179,7 +178,8 @@
}
tc->t_tinc = tinc;
rdsdebug("alloced tinc %p\n", tinc);
- rds_inc_init(&tinc->ti_inc, conn, conn->c_faddr);
+ rds_inc_path_init(&tinc->ti_inc, cp,
+ cp->cp_conn->c_faddr);
/*
* XXX * we might be able to use the __ variants when
* we've already serialized at a higher level.
@@ -229,6 +229,8 @@
}
if (tc->t_tinc_hdr_rem == 0 && tc->t_tinc_data_rem == 0) {
+ struct rds_connection *conn = cp->cp_conn;
+
if (tinc->ti_inc.i_hdr.h_flags == RDS_FLAG_CONG_BITMAP)
rds_tcp_cong_recv(conn, tinc);
else
@@ -251,15 +253,15 @@
}
/* the caller has to hold the sock lock */
-static int rds_tcp_read_sock(struct rds_connection *conn, gfp_t gfp)
+static int rds_tcp_read_sock(struct rds_conn_path *cp, gfp_t gfp)
{
- struct rds_tcp_connection *tc = conn->c_transport_data;
+ struct rds_tcp_connection *tc = cp->cp_transport_data;
struct socket *sock = tc->t_sock;
read_descriptor_t desc;
struct rds_tcp_desc_arg arg;
/* It's like glib in the kernel! */
- arg.conn = conn;
+ arg.conn_path = cp;
arg.gfp = gfp;
desc.arg.data = &arg;
desc.error = 0;
@@ -279,16 +281,17 @@
* if we fail to allocate we're in trouble.. blindly wait some time before
* trying again to see if the VM can free up something for us.
*/
-int rds_tcp_recv(struct rds_connection *conn)
+int rds_tcp_recv_path(struct rds_conn_path *cp)
{
- struct rds_tcp_connection *tc = conn->c_transport_data;
+ struct rds_tcp_connection *tc = cp->cp_transport_data;
struct socket *sock = tc->t_sock;
int ret = 0;
- rdsdebug("recv worker conn %p tc %p sock %p\n", conn, tc, sock);
+ rdsdebug("recv worker path [%d] tc %p sock %p\n",
+ cp->cp_index, tc, sock);
lock_sock(sock->sk);
- ret = rds_tcp_read_sock(conn, GFP_KERNEL);
+ ret = rds_tcp_read_sock(cp, GFP_KERNEL);
release_sock(sock->sk);
return ret;
@@ -313,7 +316,7 @@
ready = tc->t_orig_data_ready;
rds_tcp_stats_inc(s_tcp_data_ready_calls);
- if (rds_tcp_read_sock(cp->cp_conn, GFP_ATOMIC) == -ENOMEM)
+ if (rds_tcp_read_sock(cp, GFP_ATOMIC) == -ENOMEM)
queue_delayed_work(rds_wq, &cp->cp_recv_w, 0);
out:
read_unlock_bh(&sk->sk_callback_lock);