48 static struct meta_index *locate_meta_index(struct inode *inode, int offset,  in locate_meta_index()  argument
52 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;  in locate_meta_index()
63 		if (msblk->meta_index[i].inode_number == inode->i_ino &&  in locate_meta_index()
87 static struct meta_index *empty_meta_index(struct inode *inode, int offset,  in empty_meta_index()  argument
90 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;  in empty_meta_index()
136 	meta->inode_number = inode->i_ino;  in empty_meta_index()
148 static void release_meta_index(struct inode *inode, struct meta_index *meta)  in release_meta_index()  argument
150 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;  in release_meta_index()
228 static int fill_meta_index(struct inode *inode, int index,  in fill_meta_index()  argument
231 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;  in fill_meta_index()
232 	int skip = calculate_skip(i_size_read(inode) >> msblk->block_log);  in fill_meta_index()
236 	u64 cur_index_block = squashfs_i(inode)->block_list_start;  in fill_meta_index()
237 	int cur_offset = squashfs_i(inode)->offset;  in fill_meta_index()
238 	u64 cur_data_block = squashfs_i(inode)->start;  in fill_meta_index()
247 		meta = locate_meta_index(inode, offset + 1, index);  in fill_meta_index()
250 			meta = empty_meta_index(inode, offset + 1, skip);  in fill_meta_index()
277 			long long res = read_indexes(inode->i_sb, blocks,  in fill_meta_index()
304 		release_meta_index(inode, meta);  in fill_meta_index()
318 	release_meta_index(inode, meta);  in fill_meta_index()
327 static int read_blocklist(struct inode *inode, int index, u64 *block)  in read_blocklist()  argument
333 	int res = fill_meta_index(inode, index, &start, &offset, block);  in read_blocklist()
349 		blks = read_indexes(inode->i_sb, index - res, &start, &offset);  in read_blocklist()
358 	res = squashfs_read_metadata(inode->i_sb, &size, &start, &offset,  in read_blocklist()
386 	struct inode *inode = page->mapping->host;  in squashfs_copy_cache()  local
387 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;  in squashfs_copy_cache()
424 	struct inode *inode = page->mapping->host;  in squashfs_readpage_fragment()  local
425 	struct squashfs_cache_entry *buffer = squashfs_get_fragment(inode->i_sb,  in squashfs_readpage_fragment()
426 		squashfs_i(inode)->fragment_block,  in squashfs_readpage_fragment()
427 		squashfs_i(inode)->fragment_size);  in squashfs_readpage_fragment()
432 			squashfs_i(inode)->fragment_block,  in squashfs_readpage_fragment()
433 			squashfs_i(inode)->fragment_size);  in squashfs_readpage_fragment()
436 			squashfs_i(inode)->fragment_offset);  in squashfs_readpage_fragment()
451 	struct inode *inode = page->mapping->host;  in squashfs_read_folio()  local
452 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;  in squashfs_read_folio()
454 	int file_end = i_size_read(inode) >> msblk->block_log;  in squashfs_read_folio()
456 			(i_size_read(inode) & (msblk->block_size - 1)) :  in squashfs_read_folio()
462 				page->index, squashfs_i(inode)->start);  in squashfs_read_folio()
464 	if (page->index >= ((i_size_read(inode) + PAGE_SIZE - 1) >>  in squashfs_read_folio()
468 	if (index < file_end || squashfs_i(inode)->fragment_block ==  in squashfs_read_folio()
472 		res = read_blocklist(inode, index, &block);  in squashfs_read_folio()
503 	struct inode *inode = page[0]->mapping->host;  in squashfs_readahead_fragment()  local
504 	struct squashfs_cache_entry *buffer = squashfs_get_fragment(inode->i_sb,  in squashfs_readahead_fragment()
505 		squashfs_i(inode)->fragment_block,  in squashfs_readahead_fragment()
506 		squashfs_i(inode)->fragment_size);  in squashfs_readahead_fragment()
507 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;  in squashfs_readahead_fragment()
514 	expected += squashfs_i(inode)->fragment_offset;  in squashfs_readahead_fragment()
518 		unsigned int offset = base + squashfs_i(inode)->fragment_offset;  in squashfs_readahead_fragment()
538 	struct inode *inode = ractl->mapping->host;  in squashfs_readahead()  local
539 	struct squashfs_sb_info *msblk = inode->i_sb->s_fs_info;  in squashfs_readahead()
547 	int i, file_end = i_size_read(inode) >> msblk->block_log;  in squashfs_readahead()
564 			   (i_size_read(inode) & (msblk->block_size - 1)) :  in squashfs_readahead()
573 		if (readahead_pos(ractl) >= i_size_read(inode))  in squashfs_readahead()
581 		if (index == file_end && squashfs_i(inode)->fragment_block !=  in squashfs_readahead()
590 		bsize = read_blocklist(inode, index, &block);  in squashfs_readahead()
599 		res = squashfs_read_data(inode->i_sb, block, bsize, NULL, actor);  in squashfs_readahead()