xprtrdma: Remove the RPCRDMA_REQ_F_PENDING flag

Commit 9590d083c1bb ("xprtrdma: Use xprt_pin_rqst in
rpcrdma_reply_handler") pins incoming RPC/RDMA replies so they
can be left in the pending requests queue while they are being
processed without introducing a race between ->buf_free and the
transport's reply handler. Therefore RPCRDMA_REQ_F_PENDING is no
longer necessary.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>

diff --git a/net/sunrpc/xprtrdma/rpc_rdma.c b/net/sunrpc/xprtrdma/rpc_rdma.c
index 59b214b..fbc0a9f 100644 (file)
--- a/net/sunrpc/xprtrdma/rpc_rdma.c
+++ b/net/sunrpc/xprtrdma/rpc_rdma.c
@@ -1371,7 +1371,6 @@ void rpcrdma_reply_handler(struct rpcrdma_rep *rep)
        }
        req->rl_reply = rep;
        rep->rr_rqst = rqst;
-       clear_bit(RPCRDMA_REQ_F_PENDING, &req->rl_flags);
 
        trace_xprtrdma_reply(rqst->rq_task, rep, req, credits);
        queue_work(buf->rb_completion_wq, &rep->rr_work);

diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c
index 1f73a6a..f84375d 100644 (file)
--- a/net/sunrpc/xprtrdma/transport.c
+++ b/net/sunrpc/xprtrdma/transport.c
@@ -618,8 +618,7 @@ xprt_rdma_free(struct rpc_task *task)
        struct rpcrdma_xprt *r_xprt = rpcx_to_rdmax(rqst->rq_xprt);
        struct rpcrdma_req *req = rpcr_to_rdmar(rqst);
 
-       if (test_bit(RPCRDMA_REQ_F_PENDING, &req->rl_flags))
-               rpcrdma_release_rqst(r_xprt, req);
+       rpcrdma_release_rqst(r_xprt, req);
        trace_xprtrdma_op_free(task, req);
 }
 
@@ -667,7 +666,6 @@ xprt_rdma_send_request(struct rpc_rqst *rqst)
                goto drop_connection;
        rqst->rq_xtime = ktime_get();
 
-       __set_bit(RPCRDMA_REQ_F_PENDING, &req->rl_flags);
        if (rpcrdma_ep_post(&r_xprt->rx_ia, &r_xprt->rx_ep, req))
                goto drop_connection;
 

diff --git a/net/sunrpc/xprtrdma/xprt_rdma.h b/net/sunrpc/xprtrdma/xprt_rdma.h
index 2c6c5d8..3c39aa3 100644 (file)
--- a/net/sunrpc/xprtrdma/xprt_rdma.h
+++ b/net/sunrpc/xprtrdma/xprt_rdma.h
@@ -344,7 +344,6 @@ struct rpcrdma_req {
 
 /* rl_flags */
 enum {
-       RPCRDMA_REQ_F_PENDING = 0,
        RPCRDMA_REQ_F_TX_RESOURCES,
 };