}
stack = origin_path;
ctr = 1;
+ origin = origin_path->dentry;
origin_path = NULL;
}
/*
- * Lookup index by lower inode and verify it matches upper inode.
- * We only trust dir index if we verified that lower dir matches
- * origin, otherwise dir index entries may be inconsistent and we
- * ignore them.
+ * Always lookup index if there is no-upperdentry.
*
- * For non-dir upper metacopy dentry, we already set "origin" if we
- * verified that lower matched upper origin. If upper origin was
- * not present (because lower layer did not support fh encode/decode),
- * or indexing is not enabled, do not set "origin" and skip looking up
- * index. This case should be handled in same way as a non-dir upper
- * without ORIGIN is handled.
+ * For the case of upperdentry, we have set origin by now if it
+ * needed to be set. There are basically three cases.
+ *
+ * For directories, lookup index by lower inode and verify it matches
+ * upper inode. We only trust dir index if we verified that lower dir
+ * matches origin, otherwise dir index entries may be inconsistent
+ * and we ignore them.
+ *
+ * For regular upper, we already set origin if upper had ORIGIN
+ * xattr. There is no verification though as there is no path
+ * based dentry lookup in lower in this case.
+ *
+ * For metacopy upper, we set a verified origin already if index
+ * is enabled and if upper had an ORIGIN xattr.
*
- * Always lookup index of non-dir non-metacopy and non-upper.
*/
- if (ctr && (!upperdentry || (!d.is_dir && !metacopy)))
+ if (!upperdentry && ctr)
origin = stack[0].dentry;
if (origin && ovl_indexdir(dentry->d_sb) &&