60 				     struct ext4_extent_header *eh)  in ext4_extent_block_csum()  argument
66 	csum = ext4_chksum(sbi, ei->i_csum_seed, (__u8 *)eh,  in ext4_extent_block_csum()
67 			   EXT4_EXTENT_TAIL_OFFSET(eh));  in ext4_extent_block_csum()
72 					 struct ext4_extent_header *eh)  in ext4_extent_block_csum_verify()  argument
79 	et = find_ext4_extent_tail(eh);  in ext4_extent_block_csum_verify()
80 	if (et->et_checksum != ext4_extent_block_csum(inode, eh))  in ext4_extent_block_csum_verify()
86 				       struct ext4_extent_header *eh)  in ext4_extent_block_csum_set()  argument
93 	et = find_ext4_extent_tail(eh);  in ext4_extent_block_csum_set()
94 	et->et_checksum = ext4_extent_block_csum(inode, eh);  in ext4_extent_block_csum_set()
394 				struct ext4_extent_header *eh,  in ext4_valid_extent_entries()  argument
398 	if (eh->eh_entries == 0)  in ext4_valid_extent_entries()
401 	entries = le16_to_cpu(eh->eh_entries);  in ext4_valid_extent_entries()
405 		struct ext4_extent *ext = EXT_FIRST_EXTENT(eh);  in ext4_valid_extent_entries()
428 		struct ext4_extent_idx *ext_idx = EXT_FIRST_INDEX(eh);  in ext4_valid_extent_entries()
440 			    struct inode *inode, struct ext4_extent_header *eh,  in __ext4_ext_check()  argument
446 	if (unlikely(eh->eh_magic != EXT4_EXT_MAGIC)) {  in __ext4_ext_check()
450 	if (unlikely(le16_to_cpu(eh->eh_depth) != depth)) {  in __ext4_ext_check()
454 	if (unlikely(eh->eh_max == 0)) {  in __ext4_ext_check()
459 	if (unlikely(le16_to_cpu(eh->eh_max) > max)) {  in __ext4_ext_check()
463 	if (unlikely(le16_to_cpu(eh->eh_entries) > le16_to_cpu(eh->eh_max))) {  in __ext4_ext_check()
467 	if (!ext4_valid_extent_entries(inode, eh, depth)) {  in __ext4_ext_check()
473 	    !ext4_extent_block_csum_verify(inode, eh)) {  in __ext4_ext_check()
484 			 le16_to_cpu(eh->eh_magic),  in __ext4_ext_check()
485 			 le16_to_cpu(eh->eh_entries), le16_to_cpu(eh->eh_max),  in __ext4_ext_check()
486 			 max, le16_to_cpu(eh->eh_depth), depth);  in __ext4_ext_check()
490 #define ext4_ext_check(inode, eh, depth, pblk)			\  argument
491 	__ext4_ext_check(__func__, __LINE__, (inode), (eh), (depth), (pblk))
527 		struct ext4_extent_header *eh = ext_block_hdr(bh);  in __read_extent_tree_block()  local
528 		struct ext4_extent *ex = EXT_FIRST_EXTENT(eh);  in __read_extent_tree_block()
532 		for (i = le16_to_cpu(eh->eh_entries); i > 0; i--, ex++) {  in __read_extent_tree_block()
650 	struct ext4_extent_header *eh;  in ext4_ext_show_leaf()  local
657 	eh = path[depth].p_hdr;  in ext4_ext_show_leaf()
658 	ex = EXT_FIRST_EXTENT(eh);  in ext4_ext_show_leaf()
662 	for (i = 0; i < le16_to_cpu(eh->eh_entries); i++, ex++) {  in ext4_ext_show_leaf()
731 	struct ext4_extent_header *eh = path->p_hdr;  in ext4_ext_binsearch_idx()  local
737 	l = EXT_FIRST_INDEX(eh) + 1;  in ext4_ext_binsearch_idx()
738 	r = EXT_LAST_INDEX(eh);  in ext4_ext_binsearch_idx()
759 		chix = ix = EXT_FIRST_INDEX(eh);  in ext4_ext_binsearch_idx()
760 		for (k = 0; k < le16_to_cpu(eh->eh_entries); k++, ix++) {  in ext4_ext_binsearch_idx()
765 				       ix, EXT_FIRST_INDEX(eh));  in ext4_ext_binsearch_idx()
791 	struct ext4_extent_header *eh = path->p_hdr;  in ext4_ext_binsearch()  local
794 	if (eh->eh_entries == 0) {  in ext4_ext_binsearch()
804 	l = EXT_FIRST_EXTENT(eh) + 1;  in ext4_ext_binsearch()
805 	r = EXT_LAST_EXTENT(eh);  in ext4_ext_binsearch()
830 		chex = ex = EXT_FIRST_EXTENT(eh);  in ext4_ext_binsearch()
831 		for (k = 0; k < le16_to_cpu(eh->eh_entries); k++, ex++) {  in ext4_ext_binsearch()
846 	struct ext4_extent_header *eh;  in ext4_ext_tree_init()  local
848 	eh = ext_inode_hdr(inode);  in ext4_ext_tree_init()
849 	eh->eh_depth = 0;  in ext4_ext_tree_init()
850 	eh->eh_entries = 0;  in ext4_ext_tree_init()
851 	eh->eh_magic = EXT4_EXT_MAGIC;  in ext4_ext_tree_init()
852 	eh->eh_max = cpu_to_le16(ext4_ext_space_root(inode, 0));  in ext4_ext_tree_init()
861 	struct ext4_extent_header *eh;  in ext4_find_extent()  local
867 	eh = ext_inode_hdr(inode);  in ext4_find_extent()
885 	path[0].p_hdr = eh;  in ext4_find_extent()
892 			  ppos, le16_to_cpu(eh->eh_entries), le16_to_cpu(eh->eh_max));  in ext4_find_extent()
906 		eh = ext_block_hdr(bh);  in ext4_find_extent()
916 		path[ppos].p_hdr = eh;  in ext4_find_extent()
1488 	struct ext4_extent_header *eh;  in ext4_ext_search_right()  local
1565 		eh = ext_block_hdr(bh);  in ext4_ext_search_right()
1566 		ix = EXT_FIRST_INDEX(eh);  in ext4_ext_search_right()
1574 	eh = ext_block_hdr(bh);  in ext4_ext_search_right()
1575 	ex = EXT_FIRST_EXTENT(eh);  in ext4_ext_search_right()
1660 	struct ext4_extent_header *eh;  in ext4_ext_correct_indexes()  local
1666 	eh = path[depth].p_hdr;  in ext4_ext_correct_indexes()
1669 	if (unlikely(ex == NULL || eh == NULL)) {  in ext4_ext_correct_indexes()
1671 				 "ex %p == NULL or eh %p == NULL", ex, eh);  in ext4_ext_correct_indexes()
1680 	if (ex != EXT_FIRST_EXTENT(eh)) {  in ext4_ext_correct_indexes()
1763 	struct ext4_extent_header *eh;  in ext4_ext_try_to_merge_right()  local
1769 	eh = path[depth].p_hdr;  in ext4_ext_try_to_merge_right()
1771 	while (ex < EXT_LAST_EXTENT(eh)) {  in ext4_ext_try_to_merge_right()
1781 		if (ex + 1 < EXT_LAST_EXTENT(eh)) {  in ext4_ext_try_to_merge_right()
1782 			len = (EXT_LAST_EXTENT(eh) - ex - 1)  in ext4_ext_try_to_merge_right()
1786 		le16_add_cpu(&eh->eh_entries, -1);  in ext4_ext_try_to_merge_right()
1788 		WARN_ON(eh->eh_entries == 0);  in ext4_ext_try_to_merge_right()
1789 		if (!eh->eh_entries)  in ext4_ext_try_to_merge_right()
1849 	struct ext4_extent_header *eh;  in ext4_ext_try_to_merge()  local
1855 	eh = path[depth].p_hdr;  in ext4_ext_try_to_merge()
1857 	if (ex > EXT_FIRST_EXTENT(eh))  in ext4_ext_try_to_merge()
1928 	struct ext4_extent_header *eh;  in ext4_ext_insert_extent()  local
1944 	eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
1960 		if (ex < EXT_LAST_EXTENT(eh) &&  in ext4_ext_insert_extent()
1966 		} else if ((ex > EXT_FIRST_EXTENT(eh)) &&  in ext4_ext_insert_extent()
1991 			eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
2020 			eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
2027 	eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
2028 	if (le16_to_cpu(eh->eh_entries) < le16_to_cpu(eh->eh_max))  in ext4_ext_insert_extent()
2032 	fex = EXT_LAST_EXTENT(eh);  in ext4_ext_insert_extent()
2043 		eh = npath[depth].p_hdr;  in ext4_ext_insert_extent()
2044 		if (le16_to_cpu(eh->eh_entries) < le16_to_cpu(eh->eh_max)) {  in ext4_ext_insert_extent()
2046 				  le16_to_cpu(eh->eh_entries));  in ext4_ext_insert_extent()
2051 			  le16_to_cpu(eh->eh_entries), le16_to_cpu(eh->eh_max));  in ext4_ext_insert_extent()
2065 	eh = path[depth].p_hdr;  in ext4_ext_insert_extent()
2081 		nearex = EXT_FIRST_EXTENT(eh);  in ext4_ext_insert_extent()
2105 		len = EXT_LAST_EXTENT(eh) - nearex + 1;  in ext4_ext_insert_extent()
2119 	le16_add_cpu(&eh->eh_entries, 1);  in ext4_ext_insert_extent()
2598 	struct ext4_extent_header *eh;  in ext4_ext_rm_leaf()  local
2611 	eh = path[depth].p_hdr;  in ext4_ext_rm_leaf()
2619 		ex = EXT_LAST_EXTENT(eh);  in ext4_ext_rm_leaf()
2626 	while (ex >= EXT_FIRST_EXTENT(eh) &&  in ext4_ext_rm_leaf()
2684 		if (ex == EXT_FIRST_EXTENT(eh)) {  in ext4_ext_rm_leaf()
2725 				memmove(ex, ex+1, (EXT_LAST_EXTENT(eh) - ex) *  in ext4_ext_rm_leaf()
2729 				memset(EXT_LAST_EXTENT(eh), 0,  in ext4_ext_rm_leaf()
2732 			le16_add_cpu(&eh->eh_entries, -1);  in ext4_ext_rm_leaf()
2746 	if (correct_index && eh->eh_entries)  in ext4_ext_rm_leaf()
2756 	if (*partial_cluster > 0 && ex >= EXT_FIRST_EXTENT(eh)) {  in ext4_ext_rm_leaf()
2769 	if (err == 0 && eh->eh_entries == 0 && path[depth].p_bh != NULL)  in ext4_ext_rm_leaf()
3398 	struct ext4_extent_header *eh;  in ext4_ext_convert_to_initialized()  local
3419 	eh = path[depth].p_hdr;  in ext4_ext_convert_to_initialized()
3449 		(ex > EXT_FIRST_EXTENT(eh))) {	/*L2*/  in ext4_ext_convert_to_initialized()
3494 		   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()