FS_VNODE_CAPABILITY_READ_DIR
CLEAR_UNSUPPORTED(FS_VNODE_CAPABILITY_READ_DIR, read_dir);
if (!HasVNodeCapability(vnode, FS_VNODE_CAPABILITY_READ_DIR))
fNodeCapabilities.Set(FS_VNODE_CAPABILITY_READ_DIR, fFSOps->readdir);
fNodeCapabilities.Set(FS_VNODE_CAPABILITY_READ_DIR, readDirSupport);
fNodeCapabilities.Set(FS_VNODE_CAPABILITY_READ_DIR, readDirSupport);
capabilities.Set(FS_VNODE_CAPABILITY_READ_DIR, ops->read_dir);