Introduce path_put()

* Add path_put() functions for releasing a reference to the dentry and
  vfsmount of a struct path in the right order

* Switch from path_release(nd) to path_put(&nd->path)

* Rename dput_path() to path_put_conditional()

[akpm@linux-foundation.org: fix cifs]
Signed-off-by: Jan Blunck <jblunck@suse.de>
Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Acked-by: Christoph Hellwig <hch@lst.de>
Cc: <linux-fsdevel@vger.kernel.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Steven French <sfrench@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/xattr.c b/fs/xattr.c
index be0ee75..3acab16 100644
--- a/fs/xattr.c
+++ b/fs/xattr.c
@@ -263,7 +263,7 @@
 	if (error)
 		return error;
 	error = setxattr(nd.path.dentry, name, value, size, flags);
-	path_release(&nd);
+	path_put(&nd.path);
 	return error;
 }
 
@@ -278,7 +278,7 @@
 	if (error)
 		return error;
 	error = setxattr(nd.path.dentry, name, value, size, flags);
-	path_release(&nd);
+	path_put(&nd.path);
 	return error;
 }
 
@@ -348,7 +348,7 @@
 	if (error)
 		return error;
 	error = getxattr(nd.path.dentry, name, value, size);
-	path_release(&nd);
+	path_put(&nd.path);
 	return error;
 }
 
@@ -363,7 +363,7 @@
 	if (error)
 		return error;
 	error = getxattr(nd.path.dentry, name, value, size);
-	path_release(&nd);
+	path_put(&nd.path);
 	return error;
 }
 
@@ -422,7 +422,7 @@
 	if (error)
 		return error;
 	error = listxattr(nd.path.dentry, list, size);
-	path_release(&nd);
+	path_put(&nd.path);
 	return error;
 }
 
@@ -436,7 +436,7 @@
 	if (error)
 		return error;
 	error = listxattr(nd.path.dentry, list, size);
-	path_release(&nd);
+	path_put(&nd.path);
 	return error;
 }
 
@@ -483,7 +483,7 @@
 	if (error)
 		return error;
 	error = removexattr(nd.path.dentry, name);
-	path_release(&nd);
+	path_put(&nd.path);
 	return error;
 }
 
@@ -497,7 +497,7 @@
 	if (error)
 		return error;
 	error = removexattr(nd.path.dentry, name);
-	path_release(&nd);
+	path_put(&nd.path);
 	return error;
 }