81 	struct squashfs_sb_info *msblk;  in squashfs_fill_super()  local
93 	sb->s_fs_info = kzalloc(sizeof(*msblk), GFP_KERNEL);  in squashfs_fill_super()
98 	msblk = sb->s_fs_info;  in squashfs_fill_super()
100 	msblk->devblksize = sb_min_blocksize(sb, SQUASHFS_DEVBLK_SIZE);  in squashfs_fill_super()
101 	msblk->devblksize_log2 = ffz(~msblk->devblksize);  in squashfs_fill_super()
103 	mutex_init(&msblk->meta_index_mutex);  in squashfs_fill_super()
111 	msblk->bytes_used = sizeof(*sblk);  in squashfs_fill_super()
133 	msblk->decompressor = supported_squashfs_filesystem(  in squashfs_fill_super()
137 	if (msblk->decompressor == NULL)  in squashfs_fill_super()
142 	msblk->bytes_used = le64_to_cpu(sblk->bytes_used);  in squashfs_fill_super()
143 	if (msblk->bytes_used < 0 || msblk->bytes_used >  in squashfs_fill_super()
148 	msblk->block_size = le32_to_cpu(sblk->block_size);  in squashfs_fill_super()
149 	if (msblk->block_size > SQUASHFS_FILE_MAX_SIZE)  in squashfs_fill_super()
156 	if (PAGE_CACHE_SIZE > msblk->block_size) {  in squashfs_fill_super()
158 			"currently not supported!\n", msblk->block_size);  in squashfs_fill_super()
163 	msblk->block_log = le16_to_cpu(sblk->block_log);  in squashfs_fill_super()
164 	if (msblk->block_log > SQUASHFS_FILE_MAX_LOG)  in squashfs_fill_super()
168 	if (msblk->block_size != (1 << msblk->block_log))  in squashfs_fill_super()
176 	msblk->inode_table = le64_to_cpu(sblk->inode_table_start);  in squashfs_fill_super()
177 	msblk->directory_table = le64_to_cpu(sblk->directory_table_start);  in squashfs_fill_super()
178 	msblk->inodes = le32_to_cpu(sblk->inodes);  in squashfs_fill_super()
186 	TRACE("Filesystem size %lld bytes\n", msblk->bytes_used);  in squashfs_fill_super()
187 	TRACE("Block size %d\n", msblk->block_size);  in squashfs_fill_super()
188 	TRACE("Number of inodes %d\n", msblk->inodes);  in squashfs_fill_super()
191 	TRACE("sblk->inode_table_start %llx\n", msblk->inode_table);  in squashfs_fill_super()
192 	TRACE("sblk->directory_table_start %llx\n", msblk->directory_table);  in squashfs_fill_super()
204 	msblk->block_cache = squashfs_cache_init("metadata",  in squashfs_fill_super()
206 	if (msblk->block_cache == NULL)  in squashfs_fill_super()
210 	msblk->read_page = squashfs_cache_init("data",  in squashfs_fill_super()
211 		squashfs_max_decompressors(), msblk->block_size);  in squashfs_fill_super()
212 	if (msblk->read_page == NULL) {  in squashfs_fill_super()
217 	msblk->stream = squashfs_decompressor_setup(sb, flags);  in squashfs_fill_super()
218 	if (IS_ERR(msblk->stream)) {  in squashfs_fill_super()
219 		err = PTR_ERR(msblk->stream);  in squashfs_fill_super()
220 		msblk->stream = NULL;  in squashfs_fill_super()
228 		next_table = msblk->bytes_used;  in squashfs_fill_super()
233 	msblk->xattr_id_table = squashfs_read_xattr_id_table(sb,  in squashfs_fill_super()
234 		xattr_id_table_start, &msblk->xattr_table, &msblk->xattr_ids);  in squashfs_fill_super()
235 	if (IS_ERR(msblk->xattr_id_table)) {  in squashfs_fill_super()
237 		err = PTR_ERR(msblk->xattr_id_table);  in squashfs_fill_super()
238 		msblk->xattr_id_table = NULL;  in squashfs_fill_super()
242 	next_table = msblk->xattr_table;  in squashfs_fill_super()
246 	msblk->id_table = squashfs_read_id_index_table(sb,  in squashfs_fill_super()
249 	if (IS_ERR(msblk->id_table)) {  in squashfs_fill_super()
251 		err = PTR_ERR(msblk->id_table);  in squashfs_fill_super()
252 		msblk->id_table = NULL;  in squashfs_fill_super()
255 	next_table = le64_to_cpu(msblk->id_table[0]);  in squashfs_fill_super()
263 	msblk->inode_lookup_table = squashfs_read_inode_lookup_table(sb,  in squashfs_fill_super()
264 		lookup_table_start, next_table, msblk->inodes);  in squashfs_fill_super()
265 	if (IS_ERR(msblk->inode_lookup_table)) {  in squashfs_fill_super()
267 		err = PTR_ERR(msblk->inode_lookup_table);  in squashfs_fill_super()
268 		msblk->inode_lookup_table = NULL;  in squashfs_fill_super()
271 	next_table = le64_to_cpu(msblk->inode_lookup_table[0]);  in squashfs_fill_super()
280 	msblk->fragment_cache = squashfs_cache_init("fragment",  in squashfs_fill_super()
281 		SQUASHFS_CACHED_FRAGMENTS, msblk->block_size);  in squashfs_fill_super()
282 	if (msblk->fragment_cache == NULL) {  in squashfs_fill_super()
288 	msblk->fragment_index = squashfs_read_fragment_index_table(sb,  in squashfs_fill_super()
290 	if (IS_ERR(msblk->fragment_index)) {  in squashfs_fill_super()
292 		err = PTR_ERR(msblk->fragment_index);  in squashfs_fill_super()
293 		msblk->fragment_index = NULL;  in squashfs_fill_super()
296 	next_table = le64_to_cpu(msblk->fragment_index[0]);  in squashfs_fill_super()
300 	if (msblk->directory_table > next_table) {  in squashfs_fill_super()
306 	if (msblk->inode_table >= msblk->directory_table) {  in squashfs_fill_super()
338 	squashfs_cache_delete(msblk->block_cache);  in squashfs_fill_super()
339 	squashfs_cache_delete(msblk->fragment_cache);  in squashfs_fill_super()
340 	squashfs_cache_delete(msblk->read_page);  in squashfs_fill_super()
341 	squashfs_decompressor_destroy(msblk);  in squashfs_fill_super()
342 	kfree(msblk->inode_lookup_table);  in squashfs_fill_super()
343 	kfree(msblk->fragment_index);  in squashfs_fill_super()
344 	kfree(msblk->id_table);  in squashfs_fill_super()
345 	kfree(msblk->xattr_id_table);  in squashfs_fill_super()
355 	struct squashfs_sb_info *msblk = dentry->d_sb->s_fs_info;  in squashfs_statfs()  local
361 	buf->f_bsize = msblk->block_size;  in squashfs_statfs()
362 	buf->f_blocks = ((msblk->bytes_used - 1) >> msblk->block_log) + 1;  in squashfs_statfs()
364 	buf->f_files = msblk->inodes;  in squashfs_statfs()