492     if (mfp == NULL || mfp->mf_fd < 0)  in ml_set_crypt_key()
647     if (mfp->mf_fd < 0)		    // there is no swap file yet  in ml_setname()
692 	if (mfp->mf_fd >= 0)  in ml_setname()
694 	    close(mfp->mf_fd);  in ml_setname()
695 	    mfp->mf_fd = -1;  in ml_setname()
716     if (mfp->mf_fd == -1)	    // need to (re)open the swap file  in ml_setname()
718 	mfp->mf_fd = mch_open((char *)mfp->mf_fname, O_RDWR | O_EXTRA, 0);  in ml_setname()
719 	if (mfp->mf_fd < 0)  in ml_setname()
727 	    int fdflags = fcntl(mfp->mf_fd, F_GETFD);  in ml_setname()
729 		(void)fcntl(mfp->mf_fd, F_SETFD, fdflags | FD_CLOEXEC);  in ml_setname()
765     if (mfp == NULL || mfp->mf_fd >= 0 || !buf->b_p_swf  in ml_open_file()
1266     if (mfp == NULL || mfp->mf_fd < 0)  in ml_recover()
1368 	if ((size = vim_lseek(mfp->mf_fd, (off_T)0L, SEEK_END)) <= 0)  in ml_recover()
2431 		|| buf->b_ml.ml_mfp->mf_fd < 0)  in ml_sync_all()