31 static void check_block_uninit(ext2_filsys fs, ext2fs_block_bitmap map,  in check_block_uninit()  argument
38 	if (!(EXT2_HAS_RO_COMPAT_FEATURE(fs->super,  in check_block_uninit()
40 	    !(ext2fs_bg_flags_test(fs, group, EXT2_BG_BLOCK_UNINIT)))  in check_block_uninit()
43 	blk = ext2fs_group_first_block2(fs, group);  in check_block_uninit()
45 	ext2fs_super_and_bgd_loc2(fs, group, &super_blk,  in check_block_uninit()
48 	if (fs->super->s_feature_incompat &  in check_block_uninit()
50 		old_desc_blocks = fs->super->s_first_meta_bg;  in check_block_uninit()
52 		old_desc_blocks = fs->desc_blocks + fs->super->s_reserved_gdt_blocks;  in check_block_uninit()
54 	for (i=0; i < fs->super->s_blocks_per_group; i++, blk++)  in check_block_uninit()
57 	blk = ext2fs_group_first_block2(fs, group);  in check_block_uninit()
58 	for (i=0; i < fs->super->s_blocks_per_group; i++, blk++) {  in check_block_uninit()
64 		    (blk == ext2fs_block_bitmap_loc(fs, group)) ||  in check_block_uninit()
65 		    (blk == ext2fs_inode_bitmap_loc(fs, group)) ||  in check_block_uninit()
66 		    (blk >= ext2fs_inode_table_loc(fs, group) &&  in check_block_uninit()
67 		     (blk < ext2fs_inode_table_loc(fs, group)  in check_block_uninit()
68 		      + fs->inode_blocks_per_group)))  in check_block_uninit()
71 	ext2fs_bg_flags_clear(fs, group, EXT2_BG_BLOCK_UNINIT);  in check_block_uninit()
72 	ext2fs_group_desc_csum_set(fs, group);  in check_block_uninit()
73 	ext2fs_mark_super_dirty(fs);  in check_block_uninit()
74 	ext2fs_mark_bb_dirty(fs);  in check_block_uninit()
80 static void check_inode_uninit(ext2_filsys fs, ext2fs_inode_bitmap map,  in check_inode_uninit()  argument
85 	if (!(EXT2_HAS_RO_COMPAT_FEATURE(fs->super,  in check_inode_uninit()
87 	    !(ext2fs_bg_flags_test(fs, group, EXT2_BG_INODE_UNINIT)))  in check_inode_uninit()
90 	ino = (group * fs->super->s_inodes_per_group) + 1;  in check_inode_uninit()
91 	for (i=0; i < fs->super->s_inodes_per_group; i++, ino++)  in check_inode_uninit()
94 	ext2fs_bg_flags_clear(fs, group, EXT2_BG_INODE_UNINIT);  in check_inode_uninit()
95 	ext2fs_group_desc_csum_set(fs, group);  in check_inode_uninit()
96 	ext2fs_mark_ib_dirty(fs);  in check_inode_uninit()
97 	ext2fs_mark_super_dirty(fs);  in check_inode_uninit()
98 	check_block_uninit(fs, fs->block_map, group);  in check_inode_uninit()
107 errcode_t ext2fs_new_inode(ext2_filsys fs, ext2_ino_t dir,  in ext2fs_new_inode()  argument
116 	EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);  in ext2fs_new_inode()
119 		map = fs->inode_map;  in ext2fs_new_inode()
124 		group = (dir - 1) / EXT2_INODES_PER_GROUP(fs->super);  in ext2fs_new_inode()
125 		start_inode = (group * EXT2_INODES_PER_GROUP(fs->super)) + 1;  in ext2fs_new_inode()
127 	if (start_inode < EXT2_FIRST_INODE(fs->super))  in ext2fs_new_inode()
128 		start_inode = EXT2_FIRST_INODE(fs->super);  in ext2fs_new_inode()
129 	if (start_inode > fs->super->s_inodes_count)  in ext2fs_new_inode()
133 		ino_in_group = (i - 1) % EXT2_INODES_PER_GROUP(fs->super);  in ext2fs_new_inode()
134 		group = (i - 1) / EXT2_INODES_PER_GROUP(fs->super);  in ext2fs_new_inode()
136 		check_inode_uninit(fs, map, group);  in ext2fs_new_inode()
137 		upto = i + (EXT2_INODES_PER_GROUP(fs->super) - ino_in_group);  in ext2fs_new_inode()
140 		if (upto > fs->super->s_inodes_count)  in ext2fs_new_inode()
141 			upto = fs->super->s_inodes_count;  in ext2fs_new_inode()
152 		if (i > fs->super->s_inodes_count)  in ext2fs_new_inode()
153 			i = EXT2_FIRST_INODE(fs->super);  in ext2fs_new_inode()
166 errcode_t ext2fs_new_block2(ext2_filsys fs, blk64_t goal,  in ext2fs_new_block2()  argument
172 	EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);  in ext2fs_new_block2()
175 		map = fs->block_map;  in ext2fs_new_block2()
178 	if (!goal || (goal >= ext2fs_blocks_count(fs->super)))  in ext2fs_new_block2()
179 		goal = fs->super->s_first_data_block;  in ext2fs_new_block2()
183 		goal &= ~EXT2FS_CLUSTER_MASK(fs);  in ext2fs_new_block2()
184 	check_block_uninit(fs, map,  in ext2fs_new_block2()
185 			   (i - fs->super->s_first_data_block) /  in ext2fs_new_block2()
186 			   EXT2_BLOCKS_PER_GROUP(fs->super));  in ext2fs_new_block2()
188 		if (((i - fs->super->s_first_data_block) %  in ext2fs_new_block2()
189 		     EXT2_BLOCKS_PER_GROUP(fs->super)) == 0)  in ext2fs_new_block2()
190 			check_block_uninit(fs, map,  in ext2fs_new_block2()
191 					   (i - fs->super->s_first_data_block) /  in ext2fs_new_block2()
192 					   EXT2_BLOCKS_PER_GROUP(fs->super));  in ext2fs_new_block2()
199 		if (i >= ext2fs_blocks_count(fs->super))  in ext2fs_new_block2()
200 			i = fs->super->s_first_data_block;  in ext2fs_new_block2()
205 errcode_t ext2fs_new_block(ext2_filsys fs, blk_t goal,  in ext2fs_new_block()  argument
210 	retval = ext2fs_new_block2(fs, goal, map, &val);  in ext2fs_new_block()
220 errcode_t ext2fs_alloc_block2(ext2_filsys fs, blk64_t goal,  in ext2fs_alloc_block2()  argument
228 		retval = ext2fs_get_mem(fs->blocksize, &buf);  in ext2fs_alloc_block2()
233 	memset(block_buf, 0, fs->blocksize);  in ext2fs_alloc_block2()
235 	if (fs->get_alloc_block) {  in ext2fs_alloc_block2()
236 		retval = (fs->get_alloc_block)(fs, goal, &block);  in ext2fs_alloc_block2()
240 		if (!fs->block_map) {  in ext2fs_alloc_block2()
241 			retval = ext2fs_read_block_bitmap(fs);  in ext2fs_alloc_block2()
246 		retval = ext2fs_new_block2(fs, goal, 0, &block);  in ext2fs_alloc_block2()
251 	retval = io_channel_write_blk64(fs->io, block, 1, block_buf);  in ext2fs_alloc_block2()
255 	ext2fs_block_alloc_stats2(fs, block, +1);  in ext2fs_alloc_block2()
264 errcode_t ext2fs_alloc_block(ext2_filsys fs, blk_t goal,  in ext2fs_alloc_block()  argument
269 	retval = ext2fs_alloc_block2(fs, goal, block_buf, &val);  in ext2fs_alloc_block()
275 errcode_t ext2fs_get_free_blocks2(ext2_filsys fs, blk64_t start, blk64_t finish,  in ext2fs_get_free_blocks2()  argument
281 	EXT2_CHECK_MAGIC(fs, EXT2_ET_MAGIC_EXT2FS_FILSYS);  in ext2fs_get_free_blocks2()
284 		map = fs->block_map;  in ext2fs_get_free_blocks2()
288 		b = fs->super->s_first_data_block;  in ext2fs_get_free_blocks2()
297 		if (b+num-1 > ext2fs_blocks_count(fs->super))  in ext2fs_get_free_blocks2()
298 			b = fs->super->s_first_data_block;  in ext2fs_get_free_blocks2()
308 errcode_t ext2fs_get_free_blocks(ext2_filsys fs, blk_t start, blk_t finish,  in ext2fs_get_free_blocks()  argument
313 	retval = ext2fs_get_free_blocks2(fs, start, finish, num, map, &val);  in ext2fs_get_free_blocks()
319 void ext2fs_set_alloc_block_callback(ext2_filsys fs,  in ext2fs_set_alloc_block_callback()  argument
320 				     errcode_t (*func)(ext2_filsys fs,  in ext2fs_set_alloc_block_callback()  argument
323 				     errcode_t (**old)(ext2_filsys fs,  in ext2fs_set_alloc_block_callback()  argument
327 	if (!fs || fs->magic != EXT2_ET_MAGIC_EXT2FS_FILSYS)  in ext2fs_set_alloc_block_callback()
331 		*old = fs->get_alloc_block;  in ext2fs_set_alloc_block_callback()
333 	fs->get_alloc_block = func;  in ext2fs_set_alloc_block_callback()