FS_CLOSE_NOWRITE
BUILD_BUG_ON(FAN_CLOSE_NOWRITE != FS_CLOSE_NOWRITE);
BUILD_BUG_ON(IN_CLOSE_NOWRITE != FS_CLOSE_NOWRITE);
FS_CLOSE_NOWRITE;
FS_CLOSE_WRITE | FS_CLOSE_NOWRITE | \
FS_CLOSE_NOWRITE))