49 				     struct ext4_extent_header *eh)  in ext4_extent_block_csum()  argument
55 	csum = ext4_chksum(sbi, ei->i_csum_seed, (__u8 *)eh,  in ext4_extent_block_csum()
56 			   EXT4_EXTENT_TAIL_OFFSET(eh));  in ext4_extent_block_csum()
61 					 struct ext4_extent_header *eh)  in ext4_extent_block_csum_verify()  argument
68 	et = find_ext4_extent_tail(eh);  in ext4_extent_block_csum_verify()
69 	if (et->et_checksum != ext4_extent_block_csum(inode, eh))  in ext4_extent_block_csum_verify()
75 				       struct ext4_extent_header *eh)  in ext4_extent_block_csum_set()  argument
82 	et = find_ext4_extent_tail(eh);  in ext4_extent_block_csum_set()
83 	et->et_checksum = ext4_extent_block_csum(inode, eh);  in ext4_extent_block_csum_set()
392 				struct ext4_extent_header *eh,  in ext4_valid_extent_entries()  argument
396 	if (eh->eh_entries == 0)  in ext4_valid_extent_entries()
399 	entries = le16_to_cpu(eh->eh_entries);  in ext4_valid_extent_entries()
403 		struct ext4_extent *ext = EXT_FIRST_EXTENT(eh);  in ext4_valid_extent_entries()
426 		struct ext4_extent_idx *ext_idx = EXT_FIRST_INDEX(eh);  in ext4_valid_extent_entries()
438 			    struct inode *inode, struct ext4_extent_header *eh,  in __ext4_ext_check()  argument
444 	if (unlikely(eh->eh_magic != EXT4_EXT_MAGIC)) {  in __ext4_ext_check()
448 	if (unlikely(le16_to_cpu(eh->eh_depth) != depth)) {  in __ext4_ext_check()
452 	if (unlikely(eh->eh_max == 0)) {  in __ext4_ext_check()
457 	if (unlikely(le16_to_cpu(eh->eh_max) > max)) {  in __ext4_ext_check()
461 	if (unlikely(le16_to_cpu(eh->eh_entries) > le16_to_cpu(eh->eh_max))) {  in __ext4_ext_check()
465 	if (!ext4_valid_extent_entries(inode, eh, depth)) {  in __ext4_ext_check()
475 	    !ext4_extent_block_csum_verify(inode, eh)) {  in __ext4_ext_check()
487 			 le16_to_cpu(eh->eh_magic),  in __ext4_ext_check()
488 			 le16_to_cpu(eh->eh_entries), le16_to_cpu(eh->eh_max),  in __ext4_ext_check()
489 			 max, le16_to_cpu(eh->eh_depth), depth);  in __ext4_ext_check()
493 #define ext4_ext_check(inode, eh, depth, pblk)			\  argument
494 	__ext4_ext_check(__func__, __LINE__, (inode), (eh), (depth), (pblk))
530 		struct ext4_extent_header *eh = ext_block_hdr(bh);  in __read_extent_tree_block()  local
531 		struct ext4_extent *ex = EXT_FIRST_EXTENT(eh);  in __read_extent_tree_block()
535 		for (i = le16_to_cpu(eh->eh_entries); i > 0; i--, ex++) {  in __read_extent_tree_block()
653 	struct ext4_extent_header *eh;  in ext4_ext_show_leaf()  local
660 	eh = path[depth].p_hdr;  in ext4_ext_show_leaf()
661 	ex = EXT_FIRST_EXTENT(eh);  in ext4_ext_show_leaf()
665 	for (i = 0; i < le16_to_cpu(eh->eh_entries); i++, ex++) {  in ext4_ext_show_leaf()
734 	struct ext4_extent_header *eh = path->p_hdr;  in ext4_ext_binsearch_idx()  local
740 	l = EXT_FIRST_INDEX(eh) + 1;  in ext4_ext_binsearch_idx()
741 	r = EXT_LAST_INDEX(eh);  in ext4_ext_binsearch_idx()
762 		chix = ix = EXT_FIRST_INDEX(eh);  in ext4_ext_binsearch_idx()
763 		for (k = 0; k < le16_to_cpu(eh->eh_entries); k++, ix++) {  in ext4_ext_binsearch_idx()
768 				       ix, EXT_FIRST_INDEX(eh));  in ext4_ext_binsearch_idx()
794 	struct ext4_extent_header *eh = path->p_hdr;  in ext4_ext_binsearch()  local
797 	if (eh->eh_entries == 0) {  in ext4_ext_binsearch()
807 	l = EXT_FIRST_EXTENT(eh) + 1;  in ext4_ext_binsearch()
808 	r = EXT_LAST_EXTENT(eh);  in ext4_ext_binsearch()
833 		chex = ex = EXT_FIRST_EXTENT(eh);  in ext4_ext_binsearch()
834 		for (k = 0; k < le16_to_cpu(eh->eh_entries); k++, ex++) {  in ext4_ext_binsearch()
849 	struct ext4_extent_header *eh;  in ext4_ext_tree_init()  local
851 	eh = ext_inode_hdr(inode);  in ext4_ext_tree_init()
852 	eh->eh_depth = 0;  in ext4_ext_tree_init()
853 	eh->eh_entries = 0;  in ext4_ext_tree_init()
854 	eh->eh_magic = EXT4_EXT_MAGIC;  in ext4_ext_tree_init()
855 	eh->eh_max = cpu_to_le16(ext4_ext_space_root(inode, 0));  in ext4_ext_tree_init()
864 	struct ext4_extent_header *eh;  in ext4_find_extent()  local
870 	eh = ext_inode_hdr(inode);  in ext4_find_extent()
894 	path[0].p_hdr = eh;  in ext4_find_extent()
901 			  ppos, le16_to_cpu(eh->eh_entries), le16_to_cpu(eh->eh_max));  in ext4_find_extent()
915 		eh = ext_block_hdr(bh);  in ext4_find_extent()
918 		path[ppos].p_hdr = eh;  in ext4_find_extent()
1490 	struct ext4_extent_header *eh;  in ext4_ext_search_right()  local
1567 		eh = ext_block_hdr(bh);  in ext4_ext_search_right()
1568 		ix = EXT_FIRST_INDEX(eh);  in ext4_ext_search_right()
1576 	eh = ext_block_hdr(bh);  in ext4_ext_search_right()
1577 	ex = EXT_FIRST_EXTENT(eh);  in ext4_ext_search_right()
1662 	struct ext4_extent_header *eh;  in ext4_ext_correct_indexes()  local
1668 	eh = path[depth].p_hdr;  in ext4_ext_correct_indexes()
1671 	if (unlikely(ex == NULL || eh == NULL)) {  in ext4_ext_correct_indexes()
1673 				 "ex %p == NULL or eh %p == NULL", ex, eh);  in ext4_ext_correct_indexes()
1682 	if (ex != EXT_FIRST_EXTENT(eh)) {  in ext4_ext_correct_indexes()
1771 	struct ext4_extent_header *eh;  in ext4_ext_try_to_merge_right()  local
1777 	eh = path[depth].p_hdr;  in ext4_ext_try_to_merge_right()
1779 	while (ex < EXT_LAST_EXTENT(eh)) {  in ext4_ext_try_to_merge_right()
1789 		if (ex + 1 < EXT_LAST_EXTENT(eh)) {  in ext4_ext_try_to_merge_right()
1790 			len = (EXT_LAST_EXTENT(eh) - ex - 1)  in ext4_ext_try_to_merge_right()
1794 		le16_add_cpu(&eh->eh_entries, -1);  in ext4_ext_try_to_merge_right()
1796 		WARN_ON(eh->eh_entries == 0);  in ext4_ext_try_to_merge_right()
1797 		if (!eh->eh_entries)  in ext4_ext_try_to_merge_right()
1857 	struct ext4_extent_header *eh;  in ext4_ext_try_to_merge()  local
1863 	eh = path[depth].p_hdr;  in ext4_ext_try_to_merge()
1865 	if (ex > EXT_FIRST_EXTENT(eh))  in ext4_ext_try_to_merge()
1936 	struct ext4_extent_header *eh;  in ext4_ext_insert_extent()  local
1952 	eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
1968 		if (ex < EXT_LAST_EXTENT(eh) &&  in ext4_ext_insert_extent()
1974 		} else if ((ex > EXT_FIRST_EXTENT(eh)) &&  in ext4_ext_insert_extent()
1999 			eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
2028 			eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
2035 	eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
2036 	if (le16_to_cpu(eh->eh_entries) < le16_to_cpu(eh->eh_max))  in ext4_ext_insert_extent()
2040 	fex = EXT_LAST_EXTENT(eh);  in ext4_ext_insert_extent()
2051 		eh = npath[depth].p_hdr;  in ext4_ext_insert_extent()
2052 		if (le16_to_cpu(eh->eh_entries) < le16_to_cpu(eh->eh_max)) {  in ext4_ext_insert_extent()
2054 				  le16_to_cpu(eh->eh_entries));  in ext4_ext_insert_extent()
2059 			  le16_to_cpu(eh->eh_entries), le16_to_cpu(eh->eh_max));  in ext4_ext_insert_extent()
2073 	eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
2089 		nearex = EXT_FIRST_EXTENT(eh);  in ext4_ext_insert_extent()
2113 		len = EXT_LAST_EXTENT(eh) - nearex + 1;  in ext4_ext_insert_extent()
2127 	le16_add_cpu(&eh->eh_entries, 1);  in ext4_ext_insert_extent()
2617 	struct ext4_extent_header *eh;  in ext4_ext_rm_leaf()  local
2630 	eh = path[depth].p_hdr;  in ext4_ext_rm_leaf()
2638 		ex = EXT_LAST_EXTENT(eh);  in ext4_ext_rm_leaf()
2645 	while (ex >= EXT_FIRST_EXTENT(eh) &&  in ext4_ext_rm_leaf()
2703 		if (ex == EXT_FIRST_EXTENT(eh)) {  in ext4_ext_rm_leaf()
2744 				memmove(ex, ex+1, (EXT_LAST_EXTENT(eh) - ex) *  in ext4_ext_rm_leaf()
2748 				memset(EXT_LAST_EXTENT(eh), 0,  in ext4_ext_rm_leaf()
2751 			le16_add_cpu(&eh->eh_entries, -1);  in ext4_ext_rm_leaf()
2765 	if (correct_index && eh->eh_entries)  in ext4_ext_rm_leaf()
2775 	if (*partial_cluster > 0 && ex >= EXT_FIRST_EXTENT(eh)) {  in ext4_ext_rm_leaf()
2788 	if (err == 0 && eh->eh_entries == 0 && path[depth].p_bh != NULL)  in ext4_ext_rm_leaf()
3409 	struct ext4_extent_header *eh;  in ext4_ext_convert_to_initialized()  local
3430 	eh = path[depth].p_hdr;  in ext4_ext_convert_to_initialized()
3461 		(ex > EXT_FIRST_EXTENT(eh))) {	/*L2*/  in ext4_ext_convert_to_initialized()
3506 		   ex < EXT_LAST_EXTENT(eh)) {	/*L2*/  in ext4_ext_convert_to_initialized()
3778 	struct ext4_extent_header *eh;  in check_eofblocks_fl()  local
3785 	eh = path[depth].p_hdr;  in check_eofblocks_fl()
3792 	if (unlikely(!eh->eh_entries))  in check_eofblocks_fl()
3794 	last_ex = EXT_LAST_EXTENT(eh);  in check_eofblocks_fl()