1 files changed, 39 insertions, 21 deletions

diff --git a/net/sunrpc/clnt.c b/net/sunrpc/clnt.c
index df1039f077c..fac0ca93f06 100644
--- a/net/sunrpc/clnt.c
+++ b/net/sunrpc/clnt.c
@@ -27,6 +27,8 @@
 #include <linux/types.h>
 #include <linux/kallsyms.h>
 #include <linux/mm.h>
+#include <linux/namei.h>
+#include <linux/mount.h>
 #include <linux/slab.h>
 #include <linux/utsname.h>
 #include <linux/workqueue.h>
@@ -97,33 +99,49 @@ static int
 rpc_setup_pipedir(struct rpc_clnt *clnt, char *dir_name)
 {
 	static uint32_t clntid;
+	struct nameidata nd;
+	struct path path;
+	char name[15];
+	struct qstr q = {
+		.name = name,
+	};
 	int error;
 
-	clnt->cl_vfsmnt = ERR_PTR(-ENOENT);
-	clnt->cl_dentry = ERR_PTR(-ENOENT);
+	clnt->cl_path.mnt = ERR_PTR(-ENOENT);
+	clnt->cl_path.dentry = ERR_PTR(-ENOENT);
 	if (dir_name == NULL)
 		return 0;
 
-	clnt->cl_vfsmnt = rpc_get_mount();
-	if (IS_ERR(clnt->cl_vfsmnt))
-		return PTR_ERR(clnt->cl_vfsmnt);
+	path.mnt = rpc_get_mount();
+	if (IS_ERR(path.mnt))
+		return PTR_ERR(path.mnt);
+	error = vfs_path_lookup(path.mnt->mnt_root, path.mnt, dir_name, 0, &nd);
+	if (error)
+		goto err;
 
 	for (;;) {
-		snprintf(clnt->cl_pathname, sizeof(clnt->cl_pathname),
-				"%s/clnt%x", dir_name,
-				(unsigned int)clntid++);
-		clnt->cl_pathname[sizeof(clnt->cl_pathname) - 1] = '\0';
-		clnt->cl_dentry = rpc_mkdir(clnt->cl_pathname, clnt);
-		if (!IS_ERR(clnt->cl_dentry))
-			return 0;
-		error = PTR_ERR(clnt->cl_dentry);
+		q.len = snprintf(name, sizeof(name), "clnt%x", (unsigned int)clntid++);
+		name[sizeof(name) - 1] = '\0';
+		q.hash = full_name_hash(q.name, q.len);
+		path.dentry = rpc_create_client_dir(nd.path.dentry, &q, clnt);
+		if (!IS_ERR(path.dentry))
+			break;
+		error = PTR_ERR(path.dentry);
 		if (error != -EEXIST) {
-			printk(KERN_INFO "RPC: Couldn't create pipefs entry %s, error %d\n",
-					clnt->cl_pathname, error);
-			rpc_put_mount();
-			return error;
+			printk(KERN_INFO "RPC: Couldn't create pipefs entry"
+					" %s/%s, error %d\n",
+					dir_name, name, error);
+			goto err_path_put;
 		}
 	}
+	path_put(&nd.path);
+	clnt->cl_path = path;
+	return 0;
+err_path_put:
+	path_put(&nd.path);
+err:
+	rpc_put_mount();
+	return error;
 }
 
 static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, struct rpc_xprt *xprt)
@@ -231,8 +249,8 @@ static struct rpc_clnt * rpc_new_client(const struct rpc_create_args *args, stru
 	return clnt;
 
 out_no_auth:
-	if (!IS_ERR(clnt->cl_dentry)) {
-		rpc_rmdir(clnt->cl_dentry);
+	if (!IS_ERR(clnt->cl_path.dentry)) {
+		rpc_remove_client_dir(clnt->cl_path.dentry);
 		rpc_put_mount();
 	}
 out_no_path:
@@ -423,8 +441,8 @@ rpc_free_client(struct kref *kref)
 
 	dprintk("RPC:       destroying %s client for %s\n",
 			clnt->cl_protname, clnt->cl_server);
-	if (!IS_ERR(clnt->cl_dentry)) {
-		rpc_rmdir(clnt->cl_dentry);
+	if (!IS_ERR(clnt->cl_path.dentry)) {
+		rpc_remove_client_dir(clnt->cl_path.dentry);
 		rpc_put_mount();
 	}
 	if (clnt->cl_parent != clnt) {