FS_VNODE_CAPABILITY_OPEN_DIR
if (!HasVNodeCapability(vnode, FS_VNODE_CAPABILITY_OPEN_DIR))
fNodeCapabilities.Set(FS_VNODE_CAPABILITY_OPEN_DIR, fFSOps->opendir);
fNodeCapabilities.Set(FS_VNODE_CAPABILITY_OPEN_DIR, readDirSupport);
fNodeCapabilities.Set(FS_VNODE_CAPABILITY_OPEN_DIR, readDirSupport);
capabilities.Set(FS_VNODE_CAPABILITY_OPEN_DIR, ops->open_dir);