[PATCH 5.7 105/244] xprtrdma: Fix return code from rpcrdma_xprt_connect()

[Greg Kroah-Hartman]

From: Chuck Lever <chuck.le...@oracle.com>

[ Upstream commit dda9a951dd6dd6073bbaf2c8d3119da2f8fe2d5b ]

I noticed that when rpcrdma_xprt_connect() returns -ENOMEM,
instead of retrying the connect, the RPC client kills the
RPC task that requested the connection. We want a retry
here.

Fixes: cb586decbb88 ("xprtrdma: Make sendctx queue lifetime the same as 
connection lifetime")
Signed-off-by: Chuck Lever <chuck.le...@oracle.com>
Signed-off-by: Anna Schumaker <anna.schuma...@netapp.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 net/sunrpc/xprtrdma/verbs.c | 16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 00ee62579137b..220c2d2eeb3e5 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -398,7 +398,7 @@ static int rpcrdma_ep_create(struct rpcrdma_xprt *r_xprt)
 
        ep = kzalloc(sizeof(*ep), GFP_NOFS);
        if (!ep)
-               return -EAGAIN;
+               return -ENOTCONN;
        ep->re_xprt = &r_xprt->rx_xprt;
        kref_init(&ep->re_kref);
 
@@ -534,10 +534,6 @@ int rpcrdma_xprt_connect(struct rpcrdma_xprt *r_xprt)
        rpcrdma_ep_get(ep);
        rpcrdma_post_recvs(r_xprt, true);
 
-       rc = rpcrdma_sendctxs_create(r_xprt);
-       if (rc)
-               goto out;
-
        rc = rdma_connect(ep->re_id, &ep->re_remote_cma);
        if (rc)
                goto out;
@@ -551,9 +547,17 @@ int rpcrdma_xprt_connect(struct rpcrdma_xprt *r_xprt)
                goto out;
        }
 
+       rc = rpcrdma_sendctxs_create(r_xprt);
+       if (rc) {
+               rc = -ENOTCONN;
+               goto out;
+       }
+
        rc = rpcrdma_reqs_setup(r_xprt);
-       if (rc)
+       if (rc) {
+               rc = -ENOTCONN;
                goto out;
+       }
        rpcrdma_mrs_create(r_xprt);
 
 out:
-- 
2.25.1