466 	int ff = MIN(len, cflen);  in tcprb_ffhead()  local
467 	ff = MIN(ff, rb->pile - rb->head); /* head cannot go further than pile */  in tcprb_ffhead()
469 	if (cflen == ff) {  in tcprb_ffhead()
474 		cf->head += ff;  in tcprb_ffhead()
477 	rb->head += ff;  in tcprb_ffhead()
479 	return ff;  in tcprb_ffhead()
493 	int ff = (off + len) - (rb->head + MIN(rb->len, rb->metalen));  in tcprb_fflen()  local
494 	if (ff <= 0)  in tcprb_fflen()
507 	fflen = MIN(ff, rb->pile - rb->head); /* head cannot go further than pile */  in tcprb_fflen()
537 	int diff, ff, datalen;  in tcprb_resize_meta()
542 		ff = diff - (rb->len - tcprb_get_datalen(rb));  in tcprb_resize_meta()
543 		tcprb_ffhead(rb, ff);  in tcprb_resize_meta()
588 	int diff, ff;  in tcprb_resize()
596 		(ff = diff - (rb->len - tcprb_get_datalen(rb))))  in tcprb_resize()
597 		tcprb_ffhead(rb, ff);  in tcprb_resize()
634 	int ff, olen;  in tcprb_pwrite()  local
652 	if ((ff = (off + len) - (rb->head + MIN(rb->len, rb->metalen))) > 0)  in tcprb_pwrite()
653 		len -= ff - tcprb_ffhead(rb, ff);  in tcprb_pwrite()