diff options
| author | Chuck Lever <chuck.lever@oracle.com> | 2016-01-07 14:50:10 -0500 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-01-19 15:30:48 -0500 |
| commit | 5d252f90a800cee5bc57c76d636ae60464f7a887 (patch) | |
| tree | ce8cc2748fb4fae72b74bddaa3e3229655395e69 /net/sunrpc/xprtrdma/svc_rdma_transport.c | |
| parent | 03fe9931536fe4782e9e34f7f499d588acd2015b (diff) | |
svcrdma: Add class for RDMA backwards direction transport
To support the server-side of an NFSv4.1 backchannel on RDMA
connections, add a transport class that enables backward
direction messages on an existing forward channel connection.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Acked-by: Bruce Fields <bfields@fieldses.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'net/sunrpc/xprtrdma/svc_rdma_transport.c')
| -rw-r--r-- | net/sunrpc/xprtrdma/svc_rdma_transport.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/net/sunrpc/xprtrdma/svc_rdma_transport.c b/net/sunrpc/xprtrdma/svc_rdma_transport.c index af86dfeceb4a..7fd23955f1d4 100644 --- a/net/sunrpc/xprtrdma/svc_rdma_transport.c +++ b/net/sunrpc/xprtrdma/svc_rdma_transport.c @@ -1287,12 +1287,14 @@ static void __svc_rdma_free(struct work_struct *work) { struct svcxprt_rdma *rdma = container_of(work, struct svcxprt_rdma, sc_work); - dprintk("svcrdma: svc_rdma_free(%p)\n", rdma); + struct svc_xprt *xprt = &rdma->sc_xprt; + + dprintk("svcrdma: %s(%p)\n", __func__, rdma); /* We should only be called from kref_put */ - if (atomic_read(&rdma->sc_xprt.xpt_ref.refcount) != 0) + if (atomic_read(&xprt->xpt_ref.refcount) != 0) pr_err("svcrdma: sc_xprt still in use? (%d)\n", - atomic_read(&rdma->sc_xprt.xpt_ref.refcount)); + atomic_read(&xprt->xpt_ref.refcount)); /* * Destroy queued, but not processed read completions. Note @@ -1327,6 +1329,12 @@ static void __svc_rdma_free(struct work_struct *work) pr_err("svcrdma: dma still in use? (%d)\n", atomic_read(&rdma->sc_dma_used)); + /* Final put of backchannel client transport */ + if (xprt->xpt_bc_xprt) { + xprt_put(xprt->xpt_bc_xprt); + xprt->xpt_bc_xprt = NULL; + } + rdma_dealloc_frmr_q(rdma); svc_rdma_destroy_ctxts(rdma); svc_rdma_destroy_maps(rdma); |