expand path_parent_directory() in its callers

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

diff --git a/fs/namei.c b/fs/namei.c
index 49b2a08..88e5d79 100644 (file)
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1440,18 +1440,6 @@ static void follow_mount(struct path *path)
        }
 }
 
-static struct dentry *path_parent_directory(struct path *path)
-{
-       /* rare case of legitimate dget_parent()... */
-       struct dentry *parent = dget_parent(path->dentry);
-
-       if (unlikely(!path_connected(path->mnt, parent))) {
-               dput(parent);
-               parent = NULL;
-       }
-       return parent;
-}
-
 static int follow_dotdot(struct nameidata *nd)
 {
        struct dentry *parent;
@@ -1462,9 +1450,13 @@ static int follow_dotdot(struct nameidata *nd)
                        break;
                }
                if (nd->path.dentry != nd->path.mnt->mnt_root) {
-                       parent = path_parent_directory(&nd->path);
-                       if (!parent)
+                       /* rare case of legitimate dget_parent()... */
+                       parent = dget_parent(nd->path.dentry);
+
+                       if (unlikely(!path_connected(nd->path.mnt, parent))) {
+                               dput(parent);
                                return -ENOENT;
+                       }
                        dput(nd->path.dentry);
                        nd->path.dentry = parent;
                        break;
@@ -2602,13 +2594,14 @@ int path_pts(struct path *path)
        /* Find something mounted on "pts" in the same directory as
         * the input path.
         */
-       struct dentry *child, *parent;
+       struct dentry *parent = dget_parent(path->dentry);
+       struct dentry *child;
        struct qstr this;
 
-       parent = path_parent_directory(path);
-       if (!parent)
+       if (unlikely(!path_connected(path->mnt, parent))) {
+               dput(parent);
                return -ENOENT;
-
+       }
        dput(path->dentry);
        path->dentry = parent;
        this.name = "pts";