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SUNRPC: Pass a pointer to struct rpc_xprt to the connect callback 

Avoid another RCU dereference by passing the pointer to struct rpc_xprt
from the caller.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2013-01-08 09:26:49 -05:00
parent a4f0835c60
commit 1b092092bf
4 changed files with 5 additions and 6 deletions
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2
include/linux/sunrpc/xprt.h
View File

@ -117,7 +117,7 @@ struct rpc_xprt_ops {
void (*alloc_slot)(struct rpc_xprt *xprt, struct rpc_task *task);
void (*rpcbind)(struct rpc_task *task);
void (*set_port)(struct rpc_xprt *xprt, unsigned short port);
void (*connect)(struct rpc_task *task);
void (*connect)(struct rpc_xprt *xprt, struct rpc_task *task);
void * (*buf_alloc)(struct rpc_task *task, size_t size);
void (*buf_free)(void *buffer);
int (*send_request)(struct rpc_task *task);

2
net/sunrpc/xprt.c
View File

@ -724,7 +724,7 @@ void xprt_connect(struct rpc_task *task)
if (xprt_test_and_set_connecting(xprt))
return;
xprt->stat.connect_start = jiffies;
xprt->ops->connect(task);
xprt->ops->connect(xprt, task);
}
}

3
net/sunrpc/xprtrdma/transport.c
View File

@ -426,9 +426,8 @@ xprt_rdma_set_port(struct rpc_xprt *xprt, u16 port)
}
static void
xprt_rdma_connect(struct rpc_task *task)
xprt_rdma_connect(struct rpc_xprt *xprt, struct rpc_task *task)
{
struct rpc_xprt *xprt = (struct rpc_xprt *)task->tk_xprt;
struct rpcrdma_xprt *r_xprt = rpcx_to_rdmax(xprt);
if (r_xprt->rx_ep.rep_connected != 0) {

4
net/sunrpc/xprtsock.c
View File

@ -2205,6 +2205,7 @@ out:
/**
* xs_connect - connect a socket to a remote endpoint
* @xprt: pointer to transport structure
* @task: address of RPC task that manages state of connect request
*
* TCP: If the remote end dropped the connection, delay reconnecting.
@ -2216,9 +2217,8 @@ out:
* If a UDP socket connect fails, the delay behavior here prevents
* retry floods (hard mounts).
*/
static void xs_connect(struct rpc_task *task)
static void xs_connect(struct rpc_xprt *xprt, struct rpc_task *task)
{
struct rpc_xprt *xprt = task->tk_xprt;
struct sock_xprt *transport = container_of(xprt, struct sock_xprt, xprt);
if (transport->sock != NULL && !RPC_IS_SOFTCONN(task)) {