FS_VNODE_CAPABILITY_READ_SYMLINK
CLEAR_UNSUPPORTED(FS_VNODE_CAPABILITY_READ_SYMLINK, read_symlink);
if (!HasVNodeCapability(vnode, FS_VNODE_CAPABILITY_READ_SYMLINK))
fNodeCapabilities.Set(FS_VNODE_CAPABILITY_READ_SYMLINK, fFSOps->readlink);
fNodeCapabilities.Set(FS_VNODE_CAPABILITY_READ_SYMLINK, fLowLevelOps.readlink);
fNodeCapabilities.Set(FS_VNODE_CAPABILITY_READ_SYMLINK, fFS->ops.readlink);
capabilities.Set(FS_VNODE_CAPABILITY_READ_SYMLINK, ops->read_symlink);