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authorChuck Lever <chuck.lever@oracle.com>2016-03-04 11:28:01 -0500
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2016-03-14 14:55:55 -0400
commitb892a699cecc36ca373def4bc5ddc5fa3d46ba3b (patch)
tree8f3b5c57ab41ac027b90a9d6f0bbb63b810fdd22 /net/sunrpc
parent821c791a0bde997499384733fc98dba76baac41e (diff)
xprtrdma: Do not wait if ib_post_send() fails
If ib_post_send() in ro_unmap_sync() fails, the WRs have not been posted, no completions will fire, and wait_for_completion() will wait forever. Skip the wait in that case. To ensure the MRs are invalid, disconnect. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc')
-rw-r--r--net/sunrpc/xprtrdma/frwr_ops.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c
index e16567389e28..ecb005f871f1 100644
--- a/net/sunrpc/xprtrdma/frwr_ops.c
+++ b/net/sunrpc/xprtrdma/frwr_ops.c
@@ -520,14 +520,18 @@ frwr_op_unmap_sync(struct rpcrdma_xprt *r_xprt, struct rpcrdma_req *req)
* unless ri_id->qp is a valid pointer.
*/
rc = ib_post_send(ia->ri_id->qp, invalidate_wrs, &bad_wr);
- if (rc)
+ if (rc) {
pr_warn("%s: ib_post_send failed %i\n", __func__, rc);
+ rdma_disconnect(ia->ri_id);
+ goto unmap;
+ }
wait_for_completion(&f->fr_linv_done);
/* ORDER: Now DMA unmap all of the req's MRs, and return
* them to the free MW list.
*/
+unmap:
for (i = 0, nchunks = req->rl_nchunks; nchunks; nchunks--) {
seg = &req->rl_segments[i];