38 	struct buffer_head *bh = NULL;  in read_block_bitmap()  local
45 	bh = udf_tread(sb, udf_get_lb_pblock(sb, &loc, block));  in read_block_bitmap()
46 	if (!bh)  in read_block_bitmap()
49 	bitmap->s_block_bitmap[bitmap_nr] = bh;  in read_block_bitmap()
112 	struct buffer_head *bh = NULL;  in udf_bitmap_free_blocks()  local
151 		bh = bitmap->s_block_bitmap[bitmap_nr];  in udf_bitmap_free_blocks()
153 			if (udf_set_bit(bit + i, bh->b_data)) {  in udf_bitmap_free_blocks()
156 					  ((char *)bh->b_data)[(bit + i) >> 3]);  in udf_bitmap_free_blocks()
160 		mark_buffer_dirty(bh);  in udf_bitmap_free_blocks()
180 	struct buffer_head *bh;  in udf_bitmap_prealloc_blocks()  local
200 		bh = bitmap->s_block_bitmap[bitmap_nr];  in udf_bitmap_prealloc_blocks()
205 			if (!udf_clear_bit(bit, bh->b_data))  in udf_bitmap_prealloc_blocks()
212 		mark_buffer_dirty(bh);  in udf_bitmap_prealloc_blocks()
228 	struct buffer_head *bh = NULL;  in udf_bitmap_new_block()  local
247 	bh = bitmap->s_block_bitmap[bitmap_nr];  in udf_bitmap_new_block()
248 	ptr = memscan((char *)bh->b_data + group_start, 0xFF,  in udf_bitmap_new_block()
251 	if ((ptr - ((char *)bh->b_data)) < sb->s_blocksize) {  in udf_bitmap_new_block()
253 		if (udf_test_bit(bit, bh->b_data))  in udf_bitmap_new_block()
257 		bit = udf_find_next_one_bit(bh->b_data, end_goal, bit);  in udf_bitmap_new_block()
261 		ptr = memscan((char *)bh->b_data + (bit >> 3), 0xFF,  in udf_bitmap_new_block()
263 		newbit = (ptr - ((char *)bh->b_data)) << 3;  in udf_bitmap_new_block()
269 		newbit = udf_find_next_one_bit(bh->b_data,  in udf_bitmap_new_block()
286 		bh = bitmap->s_block_bitmap[bitmap_nr];  in udf_bitmap_new_block()
288 			ptr = memscan((char *)bh->b_data + group_start, 0xFF,  in udf_bitmap_new_block()
290 			if ((ptr - ((char *)bh->b_data)) < sb->s_blocksize) {  in udf_bitmap_new_block()
291 				bit = (ptr - ((char *)bh->b_data)) << 3;  in udf_bitmap_new_block()
295 			bit = udf_find_next_one_bit(bh->b_data,  in udf_bitmap_new_block()
309 		bit = udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3,  in udf_bitmap_new_block()
319 	       udf_test_bit(bit - 1, bh->b_data)) {  in udf_bitmap_new_block()
328 	if (!udf_clear_bit(bit, bh->b_data)) {  in udf_bitmap_new_block()
333 	mark_buffer_dirty(bh);  in udf_bitmap_new_block()
381 	epos.bh = oepos.bh = NULL;  in udf_table_free_blocks()
424 		if (epos.bh != oepos.bh) {  in udf_table_free_blocks()
426 			brelse(oepos.bh);  in udf_table_free_blocks()
427 			get_bh(epos.bh);  in udf_table_free_blocks()
428 			oepos.bh = epos.bh;  in udf_table_free_blocks()
463 			brelse(oepos.bh);  in udf_table_free_blocks()
464 			brelse(epos.bh);  in udf_table_free_blocks()
472 			brelse(oepos.bh);  in udf_table_free_blocks()
480 			epos.bh = udf_tread(sb,  in udf_table_free_blocks()
482 			if (!epos.bh) {  in udf_table_free_blocks()
483 				brelse(oepos.bh);  in udf_table_free_blocks()
486 			aed = (struct allocExtDesc *)(epos.bh->b_data);  in udf_table_free_blocks()
494 				dptr = epos.bh->b_data +  in udf_table_free_blocks()
502 				if (oepos.bh) {  in udf_table_free_blocks()
503 					sptr = oepos.bh->b_data + epos.offset;  in udf_table_free_blocks()
505 						oepos.bh->b_data;  in udf_table_free_blocks()
517 				udf_new_tag(epos.bh->b_data, TAG_IDENT_AED,  in udf_table_free_blocks()
521 				udf_new_tag(epos.bh->b_data, TAG_IDENT_AED,  in udf_table_free_blocks()
543 			if (oepos.bh) {  in udf_table_free_blocks()
544 				udf_update_tag(oepos.bh->b_data, loffset);  in udf_table_free_blocks()
545 				mark_buffer_dirty(oepos.bh);  in udf_table_free_blocks()
555 			if (!epos.bh) {  in udf_table_free_blocks()
559 				aed = (struct allocExtDesc *)epos.bh->b_data;  in udf_table_free_blocks()
561 				udf_update_tag(epos.bh->b_data, epos.offset);  in udf_table_free_blocks()
562 				mark_buffer_dirty(epos.bh);  in udf_table_free_blocks()
567 	brelse(epos.bh);  in udf_table_free_blocks()
568 	brelse(oepos.bh);  in udf_table_free_blocks()
601 	epos.bh = NULL;  in udf_table_prealloc_blocks()
628 	brelse(epos.bh);  in udf_table_prealloc_blocks()
669 	epos.bh = goal_epos.bh = NULL;  in udf_table_new_block()
686 			if (goal_epos.bh != epos.bh) {  in udf_table_new_block()
687 				brelse(goal_epos.bh);  in udf_table_new_block()
688 				goal_epos.bh = epos.bh;  in udf_table_new_block()
689 				get_bh(goal_epos.bh);  in udf_table_new_block()
698 	brelse(epos.bh);  in udf_table_new_block()
701 		brelse(goal_epos.bh);  in udf_table_new_block()
719 	brelse(goal_epos.bh);  in udf_table_new_block()