diff options
| author | Chuck Lever <chuck.lever@oracle.com> | 2019-06-19 10:33:15 -0400 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2019-07-09 10:30:25 -0400 |
| commit | 0ab115237025f5e379620bbcd56a02697d07b002 (patch) | |
| tree | 670d6d24149aa7f2b1e3ab254e6658c2a297441a /net/sunrpc/xprtrdma/transport.c | |
| parent | d8099feda4833bab96b1bf312e9e6aad6b771570 (diff) | |
xprtrdma: Wake RPCs directly in rpcrdma_wc_send path
Eliminate a context switch in the path that handles RPC wake-ups
when a Receive completion has to wait for a Send completion.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/xprtrdma/transport.c')
| -rw-r--r-- | net/sunrpc/xprtrdma/transport.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/net/sunrpc/xprtrdma/transport.c b/net/sunrpc/xprtrdma/transport.c index f84375ddbb4d..9575f1d8db07 100644 --- a/net/sunrpc/xprtrdma/transport.c +++ b/net/sunrpc/xprtrdma/transport.c @@ -618,8 +618,16 @@ 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); - rpcrdma_release_rqst(r_xprt, req); trace_xprtrdma_op_free(task, req); + + if (!list_empty(&req->rl_registered)) + frwr_unmap_sync(r_xprt, req); + + /* XXX: If the RPC is completing because of a signal and + * not because a reply was received, we ought to ensure + * that the Send completion has fired, so that memory + * involved with the Send is not still visible to the NIC. + */ } /** |