413 	ST_buffer *STbuffer;  in write_behind_check()  local
416 	STbuffer = STp->buffer;  in write_behind_check()
431 	STbuffer->buffer_bytes -= STbuffer->writing;  in write_behind_check()
437 			STps->drv_block += STbuffer->writing / STp->block_size;  in write_behind_check()
439 	STbuffer->writing = 0;  in write_behind_check()
559 	ST_buffer *STbuffer;  in flush_buffer()  local
562 	STbuffer = STp->buffer;  in flush_buffer()
3515 static int enlarge_buffer(ST_buffer * STbuffer, int new_size, int need_dma)  in enlarge_buffer()  argument
3519 	normalize_buffer(STbuffer);  in enlarge_buffer()
3521 	max_segs = STbuffer->use_sg;  in enlarge_buffer()
3524 	nbr = max_segs - STbuffer->sg_segs;  in enlarge_buffer()
3532 	     b_size * nbr < new_size - STbuffer->buffer_size;  in enlarge_buffer()
3536 	for (segs = STbuffer->sg_segs, got = STbuffer->buffer_size;  in enlarge_buffer()
3538 		STbuffer->sg[segs].address =  in enlarge_buffer()
3540 		if (STbuffer->sg[segs].address == NULL) {  in enlarge_buffer()
3548 			DEB(STbuffer->buffer_size = got);  in enlarge_buffer()
3549 			normalize_buffer(STbuffer);  in enlarge_buffer()
3552 		STbuffer->sg[segs].page = NULL;  in enlarge_buffer()
3553 		STbuffer->sg_lengths[segs] = b_size;  in enlarge_buffer()
3554 		STbuffer->sg_segs += 1;  in enlarge_buffer()
3556 		STbuffer->buffer_size = got;  in enlarge_buffer()
3561                     got, STbuffer->orig_sg_segs, STbuffer->sg_segs, b_size));  in enlarge_buffer()
3568 static void normalize_buffer(ST_buffer * STbuffer)  in normalize_buffer()  argument
3572 	for (i = STbuffer->orig_sg_segs; i < STbuffer->sg_segs; i++) {  in normalize_buffer()
3573 		for (b_size=PAGE_SIZE, order=0; b_size < STbuffer->sg_lengths[i];  in normalize_buffer()
3576 		free_pages((unsigned long)(STbuffer->sg[i].address), order);  in normalize_buffer()
3577 		STbuffer->buffer_size -= STbuffer->sg_lengths[i];  in normalize_buffer()
3580 	if (debugging && STbuffer->orig_sg_segs < STbuffer->sg_segs)  in normalize_buffer()
3582 		       STbuffer->sg[0].address, STbuffer->buffer_size,  in normalize_buffer()
3583 		       STbuffer->sg_segs);  in normalize_buffer()
3585 	STbuffer->sg_segs = STbuffer->orig_sg_segs;  in normalize_buffer()