Merge tag 'nfs-for-7.0-2' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client fixes from Anna Schumaker:

 - Fix NFS KConfig typos

 - Decrement re_receiving on the early exit paths

 - return EISDIR on nfs3_proc_create if d_alias is a dir

* tag 'nfs-for-7.0-2' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  NFS: Fix NFS KConfig typos
  xprtrdma: Decrement re_receiving on the early exit paths
  nfs: return EISDIR on nfs3_proc_create if d_alias is a dir

Author: torvalds

fs/nfs/Kconfig

@@ -87,7 +87,7 @@ config NFS_V4
 	  space programs which can be found in the Linux nfs-utils package,
 	  available from http://linux-nfs.org/.
 
-	  If unsure, say Y.
+	  If unsure, say N.
 
 config NFS_SWAP
 	bool "Provide swap over NFS support"
@@ -100,6 +100,7 @@ config NFS_SWAP
 config NFS_V4_0
 	bool "NFS client support for NFSv4.0"
 	depends on NFS_V4
+	default y
 	help
 	  This option enables support for minor version 0 of the NFSv4 protocol
 	  (RFC 3530) in the kernel's NFS client.

fs/nfs/nfs3proc.c

@@ -392,8 +392,13 @@ nfs3_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 	if (status != 0)
 		goto out_release_acls;
 
-	if (d_alias)
+	if (d_alias) {
+		if (d_is_dir(d_alias)) {
+			status = -EISDIR;
+			goto out_dput;
+		}
 		dentry = d_alias;
+	}
 
 	/* When we created the file with exclusive semantics, make
 	 * sure we set the attributes afterwards. */

net/sunrpc/xprtrdma/verbs.c

@@ -1362,7 +1362,7 @@ void rpcrdma_post_recvs(struct rpcrdma_xprt *r_xprt, int needed)
 	needed += RPCRDMA_MAX_RECV_BATCH;
 
 	if (atomic_inc_return(&ep->re_receiving) > 1)
-		goto out;
+		goto out_dec;
 
 	/* fast path: all needed reps can be found on the free list */
 	wr = NULL;
@@ -1385,7 +1385,7 @@ void rpcrdma_post_recvs(struct rpcrdma_xprt *r_xprt, int needed)
 		++count;
 	}
 	if (!wr)
-		goto out;
+		goto out_dec;
 
 	rc = ib_post_recv(ep->re_id->qp, wr,
 			  (const struct ib_recv_wr **)&bad_wr);
@@ -1400,9 +1400,10 @@ void rpcrdma_post_recvs(struct rpcrdma_xprt *r_xprt, int needed)
 			--count;
 		}
 	}
+
+out_dec:
 	if (atomic_dec_return(&ep->re_receiving) > 0)
 		complete(&ep->re_done);
-
 out:
 	trace_xprtrdma_post_recvs(r_xprt, count);
 	ep->re_receive_count += count;