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))
534 		struct ext4_extent_header *eh = ext_block_hdr(bh);  in __read_extent_tree_block()  local
535 		struct ext4_extent *ex = EXT_FIRST_EXTENT(eh);  in __read_extent_tree_block()
539 		for (i = le16_to_cpu(eh->eh_entries); i > 0; i--, ex++) {  in __read_extent_tree_block()
657 	struct ext4_extent_header *eh;  in ext4_ext_show_leaf()  local
664 	eh = path[depth].p_hdr;  in ext4_ext_show_leaf()
665 	ex = EXT_FIRST_EXTENT(eh);  in ext4_ext_show_leaf()
669 	for (i = 0; i < le16_to_cpu(eh->eh_entries); i++, ex++) {  in ext4_ext_show_leaf()
738 	struct ext4_extent_header *eh = path->p_hdr;  in ext4_ext_binsearch_idx()  local
744 	l = EXT_FIRST_INDEX(eh) + 1;  in ext4_ext_binsearch_idx()
745 	r = EXT_LAST_INDEX(eh);  in ext4_ext_binsearch_idx()
766 		chix = ix = EXT_FIRST_INDEX(eh);  in ext4_ext_binsearch_idx()
767 		for (k = 0; k < le16_to_cpu(eh->eh_entries); k++, ix++) {  in ext4_ext_binsearch_idx()
772 				       ix, EXT_FIRST_INDEX(eh));  in ext4_ext_binsearch_idx()
798 	struct ext4_extent_header *eh = path->p_hdr;  in ext4_ext_binsearch()  local
801 	if (eh->eh_entries == 0) {  in ext4_ext_binsearch()
811 	l = EXT_FIRST_EXTENT(eh) + 1;  in ext4_ext_binsearch()
812 	r = EXT_LAST_EXTENT(eh);  in ext4_ext_binsearch()
837 		chex = ex = EXT_FIRST_EXTENT(eh);  in ext4_ext_binsearch()
838 		for (k = 0; k < le16_to_cpu(eh->eh_entries); k++, ex++) {  in ext4_ext_binsearch()
853 	struct ext4_extent_header *eh;  in ext4_ext_tree_init()  local
855 	eh = ext_inode_hdr(inode);  in ext4_ext_tree_init()
856 	eh->eh_depth = 0;  in ext4_ext_tree_init()
857 	eh->eh_entries = 0;  in ext4_ext_tree_init()
858 	eh->eh_magic = EXT4_EXT_MAGIC;  in ext4_ext_tree_init()
859 	eh->eh_max = cpu_to_le16(ext4_ext_space_root(inode, 0));  in ext4_ext_tree_init()
868 	struct ext4_extent_header *eh;  in ext4_find_extent()  local
874 	eh = ext_inode_hdr(inode);  in ext4_find_extent()
898 	path[0].p_hdr = eh;  in ext4_find_extent()
905 			  ppos, le16_to_cpu(eh->eh_entries), le16_to_cpu(eh->eh_max));  in ext4_find_extent()
919 		eh = ext_block_hdr(bh);  in ext4_find_extent()
922 		path[ppos].p_hdr = eh;  in ext4_find_extent()
1507 	struct ext4_extent_header *eh;  in ext4_ext_search_right()  local
1584 		eh = ext_block_hdr(bh);  in ext4_ext_search_right()
1585 		ix = EXT_FIRST_INDEX(eh);  in ext4_ext_search_right()
1593 	eh = ext_block_hdr(bh);  in ext4_ext_search_right()
1594 	ex = EXT_FIRST_EXTENT(eh);  in ext4_ext_search_right()
1679 	struct ext4_extent_header *eh;  in ext4_ext_correct_indexes()  local
1685 	eh = path[depth].p_hdr;  in ext4_ext_correct_indexes()
1688 	if (unlikely(ex == NULL || eh == NULL)) {  in ext4_ext_correct_indexes()
1690 				 "ex %p == NULL or eh %p == NULL", ex, eh);  in ext4_ext_correct_indexes()
1699 	if (ex != EXT_FIRST_EXTENT(eh)) {  in ext4_ext_correct_indexes()
1788 	struct ext4_extent_header *eh;  in ext4_ext_try_to_merge_right()  local
1794 	eh = path[depth].p_hdr;  in ext4_ext_try_to_merge_right()
1796 	while (ex < EXT_LAST_EXTENT(eh)) {  in ext4_ext_try_to_merge_right()
1806 		if (ex + 1 < EXT_LAST_EXTENT(eh)) {  in ext4_ext_try_to_merge_right()
1807 			len = (EXT_LAST_EXTENT(eh) - ex - 1)  in ext4_ext_try_to_merge_right()
1811 		le16_add_cpu(&eh->eh_entries, -1);  in ext4_ext_try_to_merge_right()
1813 		WARN_ON(eh->eh_entries == 0);  in ext4_ext_try_to_merge_right()
1814 		if (!eh->eh_entries)  in ext4_ext_try_to_merge_right()
1874 	struct ext4_extent_header *eh;  in ext4_ext_try_to_merge()  local
1880 	eh = path[depth].p_hdr;  in ext4_ext_try_to_merge()
1882 	if (ex > EXT_FIRST_EXTENT(eh))  in ext4_ext_try_to_merge()
1953 	struct ext4_extent_header *eh;  in ext4_ext_insert_extent()  local
1969 	eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
1985 		if (ex < EXT_LAST_EXTENT(eh) &&  in ext4_ext_insert_extent()
1991 		} else if ((ex > EXT_FIRST_EXTENT(eh)) &&  in ext4_ext_insert_extent()
2016 			eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
2045 			eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
2052 	eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
2053 	if (le16_to_cpu(eh->eh_entries) < le16_to_cpu(eh->eh_max))  in ext4_ext_insert_extent()
2057 	fex = EXT_LAST_EXTENT(eh);  in ext4_ext_insert_extent()
2068 		eh = npath[depth].p_hdr;  in ext4_ext_insert_extent()
2069 		if (le16_to_cpu(eh->eh_entries) < le16_to_cpu(eh->eh_max)) {  in ext4_ext_insert_extent()
2071 				  le16_to_cpu(eh->eh_entries));  in ext4_ext_insert_extent()
2076 			  le16_to_cpu(eh->eh_entries), le16_to_cpu(eh->eh_max));  in ext4_ext_insert_extent()
2090 	eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
2106 		nearex = EXT_FIRST_EXTENT(eh);  in ext4_ext_insert_extent()
2130 		len = EXT_LAST_EXTENT(eh) - nearex + 1;  in ext4_ext_insert_extent()
2144 	le16_add_cpu(&eh->eh_entries, 1);  in ext4_ext_insert_extent()
2731 	struct ext4_extent_header *eh;  in ext4_ext_rm_leaf()  local
2744 	eh = path[depth].p_hdr;  in ext4_ext_rm_leaf()
2752 		ex = EXT_LAST_EXTENT(eh);  in ext4_ext_rm_leaf()
2759 	while (ex >= EXT_FIRST_EXTENT(eh) &&  in ext4_ext_rm_leaf()
2817 		if (ex == EXT_FIRST_EXTENT(eh)) {  in ext4_ext_rm_leaf()
2857 				memmove(ex, ex+1, (EXT_LAST_EXTENT(eh) - ex) *  in ext4_ext_rm_leaf()
2861 				memset(EXT_LAST_EXTENT(eh), 0,  in ext4_ext_rm_leaf()
2864 			le16_add_cpu(&eh->eh_entries, -1);  in ext4_ext_rm_leaf()
2878 	if (correct_index && eh->eh_entries)  in ext4_ext_rm_leaf()
2888 	if (partial->state == tofree && ex >= EXT_FIRST_EXTENT(eh)) {  in ext4_ext_rm_leaf()
2906 	if (err == 0 && eh->eh_entries == 0 && path[depth].p_bh != NULL)  in ext4_ext_rm_leaf()
3537 	struct ext4_extent_header *eh;  in ext4_ext_convert_to_initialized()  local
3558 	eh = path[depth].p_hdr;  in ext4_ext_convert_to_initialized()
3589 		(ex > EXT_FIRST_EXTENT(eh))) {	/*L2*/  in ext4_ext_convert_to_initialized()
3634 		   ex < EXT_LAST_EXTENT(eh)) {	/*L2*/  in ext4_ext_convert_to_initialized()
3906 	struct ext4_extent_header *eh;  in check_eofblocks_fl()  local
3913 	eh = path[depth].p_hdr;  in check_eofblocks_fl()
3920 	if (unlikely(!eh->eh_entries))  in check_eofblocks_fl()
3922 	last_ex = EXT_LAST_EXTENT(eh);  in check_eofblocks_fl()