Merge tag 'nfs-for-5.2-1' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client updates from Anna Schumaker:
 "Highlights include:

  Stable bugfixes:
   - Fall back to MDS if no deviceid is found rather than aborting   # v4.11+
   - NFS4: Fix v4.0 client state corruption when mount

  Features:
   - Much improved handling of soft mounts with NFS v4.0:
       - Reduce risk of false positive timeouts
       - Faster failover of reads and writes after a timeout
       - Added a "softerr" mount option to return ETIMEDOUT instead of
         EIO to the application after a timeout
   - Increase number of xprtrdma backchannel requests
   - Add additional xprtrdma tracepoints
   - Improved send completion batching for xprtrdma

  Other bugfixes and cleanups:
   - Return -EINVAL when NFS v4.2 is passed an invalid dedup mode
   - Reduce usage of GFP_ATOMIC pages in SUNRPC
   - Various minor NFS over RDMA cleanups and bugfixes
   - Use the correct container namespace for upcalls
   - Don't share superblocks between user namespaces
   - Various other container fixes
   - Make nfs_match_client() killable to prevent soft lockups
   - Don't mark all open state for recovery when handling recallable
     state revoked flag"

* tag 'nfs-for-5.2-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (69 commits)
  SUNRPC: Rebalance a kref in auth_gss.c
  NFS: Fix a double unlock from nfs_match,get_client
  nfs: pass the correct prototype to read_cache_page
  NFSv4: don't mark all open state for recovery when handling recallable state revoked flag
  SUNRPC: Fix an error code in gss_alloc_msg()
  SUNRPC: task should be exit if encode return EKEYEXPIRED more times
  NFS4: Fix v4.0 client state corruption when mount
  PNFS fallback to MDS if no deviceid found
  NFS: make nfs_match_client killable
  lockd: Store the lockd client credential in struct nlm_host
  NFS: When mounting, don't share filesystems between different user namespaces
  NFS: Convert NFSv2 to use the container user namespace
  NFSv4: Convert the NFS client idmapper to use the container user namespace
  NFS: Convert NFSv3 to use the container user namespace
  SUNRPC: Use namespace of listening daemon in the client AUTH_GSS upcall
  SUNRPC: Use the client user namespace when encoding creds
  NFS: Store the credential of the mount process in the nfs_server
  SUNRPC: Cache cred of process creating the rpc_client
  xprtrdma: Remove stale comment
  xprtrdma: Update comments that reference ib_drain_qp
  ...

1 files changed, 9 insertions, 3 deletions

diff --git a/net/sunrpc/rpcb_clnt.c b/net/sunrpc/rpcb_clnt.c
index 41a971ac1c63..2277b7cdad27 100644
--- a/net/sunrpc/rpcb_clnt.c
+++ b/net/sunrpc/rpcb_clnt.c
@@ -240,6 +240,7 @@ static int rpcb_create_local_unix(struct net *net)
 		.program	= &rpcb_program,
 		.version	= RPCBVERS_2,
 		.authflavor	= RPC_AUTH_NULL,
+		.cred		= current_cred(),
 		/*
 		 * We turn off the idle timeout to prevent the kernel
 		 * from automatically disconnecting the socket.
@@ -299,6 +300,7 @@ static int rpcb_create_local_net(struct net *net)
 		.program	= &rpcb_program,
 		.version	= RPCBVERS_2,
 		.authflavor	= RPC_AUTH_UNIX,
+		.cred		= current_cred(),
 		.flags		= RPC_CLNT_CREATE_NOPING,
 	};
 	struct rpc_clnt *clnt, *clnt4;
@@ -358,7 +360,8 @@ out:
 static struct rpc_clnt *rpcb_create(struct net *net, const char *nodename,
 				    const char *hostname,
 				    struct sockaddr *srvaddr, size_t salen,
-				    int proto, u32 version)
+				    int proto, u32 version,
+				    const struct cred *cred)
 {
 	struct rpc_create_args args = {
 		.net		= net,
@@ -370,6 +373,7 @@ static struct rpc_clnt *rpcb_create(struct net *net, const char *nodename,
 		.program	= &rpcb_program,
 		.version	= version,
 		.authflavor	= RPC_AUTH_UNIX,
+		.cred		= cred,
 		.flags		= (RPC_CLNT_CREATE_NOPING |
 					RPC_CLNT_CREATE_NONPRIVPORT),
 	};
@@ -694,7 +698,8 @@ void rpcb_getport_async(struct rpc_task *task)
 
 	/* Put self on the wait queue to ensure we get notified if
 	 * some other task is already attempting to bind the port */
-	rpc_sleep_on(&xprt->binding, task, NULL);
+	rpc_sleep_on_timeout(&xprt->binding, task,
+			NULL, jiffies + xprt->bind_timeout);
 
 	if (xprt_test_and_set_binding(xprt)) {
 		dprintk("RPC: %5u %s: waiting for another binder\n",
@@ -744,7 +749,8 @@ void rpcb_getport_async(struct rpc_task *task)
 	rpcb_clnt = rpcb_create(xprt->xprt_net,
 				clnt->cl_nodename,
 				xprt->servername, sap, salen,
-				xprt->prot, bind_version);
+				xprt->prot, bind_version,
+				clnt->cl_cred);
 	if (IS_ERR(rpcb_clnt)) {
 		status = PTR_ERR(rpcb_clnt);
 		dprintk("RPC: %5u %s: rpcb_create failed, error %ld\n",