61 static struct meta_index *locate_meta_index(struct inode *inode, int offset,  in locate_meta_index()  argument
65 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;  in locate_meta_index()
76 		if (msblk->meta_index[i].inode_number == inode->i_ino &&  in locate_meta_index()
100 static struct meta_index *empty_meta_index(struct inode *inode, int offset,  in empty_meta_index()  argument
103 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;  in empty_meta_index()
149 	meta->inode_number = inode->i_ino;  in empty_meta_index()
161 static void release_meta_index(struct inode *inode, struct meta_index *meta)  in release_meta_index()  argument
163 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;  in release_meta_index()
237 static int fill_meta_index(struct inode *inode, int index,  in fill_meta_index()  argument
240 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;  in fill_meta_index()
241 	int skip = calculate_skip(i_size_read(inode) >> msblk->block_log);  in fill_meta_index()
245 	u64 cur_index_block = squashfs_i(inode)->block_list_start;  in fill_meta_index()
246 	int cur_offset = squashfs_i(inode)->offset;  in fill_meta_index()
247 	u64 cur_data_block = squashfs_i(inode)->start;  in fill_meta_index()
256 		meta = locate_meta_index(inode, offset + 1, index);  in fill_meta_index()
259 			meta = empty_meta_index(inode, offset + 1, skip);  in fill_meta_index()
286 			long long res = read_indexes(inode->i_sb, blocks,  in fill_meta_index()
313 		release_meta_index(inode, meta);  in fill_meta_index()
327 	release_meta_index(inode, meta);  in fill_meta_index()
336 static int read_blocklist(struct inode *inode, int index, u64 *block)  in read_blocklist()  argument
342 	int res = fill_meta_index(inode, index, &start, &offset, block);  in read_blocklist()
358 		blks = read_indexes(inode->i_sb, index - res, &start, &offset);  in read_blocklist()
367 	res = squashfs_read_metadata(inode->i_sb, &size, &start, &offset,  in read_blocklist()
377 	struct inode *inode = page->mapping->host;  in squashfs_readpage()  local
378 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;  in squashfs_readpage()
387 	int file_end = i_size_read(inode) >> msblk->block_log;  in squashfs_readpage()
390 				page->index, squashfs_i(inode)->start);  in squashfs_readpage()
392 	if (page->index >= ((i_size_read(inode) + PAGE_CACHE_SIZE - 1) >>  in squashfs_readpage()
396 	if (index < file_end || squashfs_i(inode)->fragment_block ==  in squashfs_readpage()
403 		int bsize = read_blocklist(inode, index, &block);  in squashfs_readpage()
409 				(i_size_read(inode) & (msblk->block_size - 1)) :  in squashfs_readpage()
416 			buffer = squashfs_get_datablock(inode->i_sb,  in squashfs_readpage()
431 		buffer = squashfs_get_fragment(inode->i_sb,  in squashfs_readpage()
432 				squashfs_i(inode)->fragment_block,  in squashfs_readpage()
433 				squashfs_i(inode)->fragment_size);  in squashfs_readpage()
437 				squashfs_i(inode)->fragment_block,  in squashfs_readpage()
438 				squashfs_i(inode)->fragment_size);  in squashfs_readpage()
442 		bytes = i_size_read(inode) & (msblk->block_size - 1);  in squashfs_readpage()
443 		offset = squashfs_i(inode)->fragment_offset;  in squashfs_readpage()