30 static int read_block_bitmap(struct super_block *sb,  in read_block_bitmap()  argument
40 	loc.partitionReferenceNum = UDF_SB(sb)->s_partition;  in read_block_bitmap()
42 	bh = sb_bread(sb, udf_get_lb_pblock(sb, &loc, block));  in read_block_bitmap()
48 	max_bits = sb->s_blocksize * 8;  in read_block_bitmap()
58 		    (bitmap->s_nr_groups >> (sb->s_blocksize_bits + 3)) + 2)  in read_block_bitmap()
72 static int __load_block_bitmap(struct super_block *sb,  in __load_block_bitmap()  argument
87 	retval = read_block_bitmap(sb, bitmap, block_group, block_group);  in __load_block_bitmap()
94 static inline int load_block_bitmap(struct super_block *sb,  in load_block_bitmap()  argument
100 	slot = __load_block_bitmap(sb, bitmap, block_group);  in load_block_bitmap()
111 static void udf_add_free_space(struct super_block *sb, u16 partition, u32 cnt)  in udf_add_free_space()  argument
113 	struct udf_sb_info *sbi = UDF_SB(sb);  in udf_add_free_space()
121 	udf_updated_lvid(sb);  in udf_add_free_space()
124 static void udf_bitmap_free_blocks(struct super_block *sb,  in udf_bitmap_free_blocks()  argument
130 	struct udf_sb_info *sbi = UDF_SB(sb);  in udf_bitmap_free_blocks()
156 		block_group = block >> (sb->s_blocksize_bits + 3);  in udf_bitmap_free_blocks()
157 		bit = block % (sb->s_blocksize << 3);  in udf_bitmap_free_blocks()
162 		if (bit + count > (sb->s_blocksize << 3)) {  in udf_bitmap_free_blocks()
163 			overflow = bit + count - (sb->s_blocksize << 3);  in udf_bitmap_free_blocks()
166 		bitmap_nr = load_block_bitmap(sb, bitmap, block_group);  in udf_bitmap_free_blocks()
178 		udf_add_free_space(sb, sbi->s_partition, count);  in udf_bitmap_free_blocks()
190 static int udf_bitmap_prealloc_blocks(struct super_block *sb,  in udf_bitmap_prealloc_blocks()  argument
195 	struct udf_sb_info *sbi = UDF_SB(sb);  in udf_bitmap_prealloc_blocks()
212 		block_group = block >> (sb->s_blocksize_bits + 3);  in udf_bitmap_prealloc_blocks()
214 		bitmap_nr = load_block_bitmap(sb, bitmap, block_group);  in udf_bitmap_prealloc_blocks()
219 		bit = block % (sb->s_blocksize << 3);  in udf_bitmap_prealloc_blocks()
221 		while (bit < (sb->s_blocksize << 3) && block_count > 0) {  in udf_bitmap_prealloc_blocks()
233 	udf_add_free_space(sb, partition, -alloc_count);  in udf_bitmap_prealloc_blocks()
238 static udf_pblk_t udf_bitmap_new_block(struct super_block *sb,  in udf_bitmap_new_block()  argument
242 	struct udf_sb_info *sbi = UDF_SB(sb);  in udf_bitmap_new_block()
260 	block_group = block >> (sb->s_blocksize_bits + 3);  in udf_bitmap_new_block()
263 	bitmap_nr = load_block_bitmap(sb, bitmap, block_group);  in udf_bitmap_new_block()
268 		      sb->s_blocksize - group_start);  in udf_bitmap_new_block()
270 	if ((ptr - ((char *)bh->b_data)) < sb->s_blocksize) {  in udf_bitmap_new_block()
271 		bit = block % (sb->s_blocksize << 3);  in udf_bitmap_new_block()
281 			      sb->s_blocksize - ((bit + 7) >> 3));  in udf_bitmap_new_block()
283 		if (newbit < sb->s_blocksize << 3) {  in udf_bitmap_new_block()
289 					       sb->s_blocksize << 3, bit);  in udf_bitmap_new_block()
290 		if (newbit < sb->s_blocksize << 3) {  in udf_bitmap_new_block()
302 		bitmap_nr = load_block_bitmap(sb, bitmap, block_group);  in udf_bitmap_new_block()
308 				      sb->s_blocksize - group_start);  in udf_bitmap_new_block()
309 			if ((ptr - ((char *)bh->b_data)) < sb->s_blocksize) {  in udf_bitmap_new_block()
315 						    sb->s_blocksize << 3,  in udf_bitmap_new_block()
317 			if (bit < sb->s_blocksize << 3)  in udf_bitmap_new_block()
325 	if (bit < sb->s_blocksize << 3)  in udf_bitmap_new_block()
328 		bit = udf_find_next_one_bit(bh->b_data, sb->s_blocksize << 3,  in udf_bitmap_new_block()
330 	if (bit >= sb->s_blocksize << 3) {  in udf_bitmap_new_block()
344 	newblock = bit + (block_group << (sb->s_blocksize_bits + 3)) -  in udf_bitmap_new_block()
352 		udf_err(sb, "bitmap for partition %d corrupted (block %u marked"  in udf_bitmap_new_block()
365 	udf_add_free_space(sb, partition, -1);  in udf_bitmap_new_block()
376 static void udf_table_free_blocks(struct super_block *sb,  in udf_table_free_blocks()  argument
382 	struct udf_sb_info *sbi = UDF_SB(sb);  in udf_table_free_blocks()
403 	udf_add_free_space(sb, sbi->s_partition, count);  in udf_table_free_blocks()
416 			(elen >> sb->s_blocksize_bits)) == start)) {  in udf_table_free_blocks()
418 					(count << sb->s_blocksize_bits)) {  in udf_table_free_blocks()
420 							sb->s_blocksize_bits);  in udf_table_free_blocks()
424 					(0x40000000 - sb->s_blocksize);  in udf_table_free_blocks()
428 					(count << sb->s_blocksize_bits));  in udf_table_free_blocks()
435 					(count << sb->s_blocksize_bits)) {  in udf_table_free_blocks()
437 						sb->s_blocksize_bits);  in udf_table_free_blocks()
442 					(0x40000000 - sb->s_blocksize);  in udf_table_free_blocks()
447 					(count << sb->s_blocksize_bits));  in udf_table_free_blocks()
483 			(count << sb->s_blocksize_bits);  in udf_table_free_blocks()
495 		if (epos.offset + (2 * adsize) > sb->s_blocksize) {  in udf_table_free_blocks()
501 			elen -= sb->s_blocksize;  in udf_table_free_blocks()
517 static int udf_table_prealloc_blocks(struct super_block *sb,  in udf_table_prealloc_blocks()  argument
521 	struct udf_sb_info *sbi = UDF_SB(sb);  in udf_table_prealloc_blocks()
556 		alloc_count = (elen >> sb->s_blocksize_bits);  in udf_table_prealloc_blocks()
560 			elen -= (alloc_count << sb->s_blocksize_bits);  in udf_table_prealloc_blocks()
572 		udf_add_free_space(sb, partition, -alloc_count);  in udf_table_prealloc_blocks()
577 static udf_pblk_t udf_table_new_block(struct super_block *sb,  in udf_table_new_block()  argument
581 	struct udf_sb_info *sbi = UDF_SB(sb);  in udf_table_new_block()
617 					(elen >> sb->s_blocksize_bits))  in udf_table_new_block()
621 					(elen >> sb->s_blocksize_bits);  in udf_table_new_block()
655 	goal_elen -= sb->s_blocksize;  in udf_table_new_block()
663 	udf_add_free_space(sb, partition, -1);  in udf_table_new_block()
670 void udf_free_blocks(struct super_block *sb, struct inode *inode,  in udf_free_blocks()  argument
675 	struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];  in udf_free_blocks()
678 		udf_bitmap_free_blocks(sb, map->s_uspace.s_bitmap,  in udf_free_blocks()
681 		udf_table_free_blocks(sb, map->s_uspace.s_table,  in udf_free_blocks()
687 				((sector_t)count) << sb->s_blocksize_bits);  in udf_free_blocks()
691 inline int udf_prealloc_blocks(struct super_block *sb,  in udf_prealloc_blocks()  argument
696 	struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];  in udf_prealloc_blocks()
700 		allocated = udf_bitmap_prealloc_blocks(sb,  in udf_prealloc_blocks()
705 		allocated = udf_table_prealloc_blocks(sb,  in udf_prealloc_blocks()
713 		inode_add_bytes(inode, allocated << sb->s_blocksize_bits);  in udf_prealloc_blocks()
717 inline udf_pblk_t udf_new_block(struct super_block *sb,  in udf_new_block()  argument
721 	struct udf_part_map *map = &UDF_SB(sb)->s_partmaps[partition];  in udf_new_block()
725 		block = udf_bitmap_new_block(sb,  in udf_new_block()
729 		block = udf_table_new_block(sb,  in udf_new_block()
737 		inode_add_bytes(inode, sb->s_blocksize);  in udf_new_block()