17 	struct btrfs_ordered_extent *ordered;  member
40 	struct btrfs_ordered_extent *ordered;  in lock_extent_direct()  local
63 		 * doing DIO to, so we need to make sure there's no ordered  in lock_extent_direct()
66 		ordered = btrfs_lookup_ordered_range(BTRFS_I(inode), lockstart,  in lock_extent_direct()
76 		if (!ordered &&  in lock_extent_direct()
83 		if (ordered) {  in lock_extent_direct()
85 				btrfs_put_ordered_extent(ordered);  in lock_extent_direct()
90 			 * If we are doing a DIO read and the ordered extent we  in lock_extent_direct()
96 			 * created an ordered extent for a previous extent map  in lock_extent_direct()
105 			    test_bit(BTRFS_ORDERED_DIRECT, &ordered->flags))  in lock_extent_direct()
106 				btrfs_start_ordered_extent(ordered);  in lock_extent_direct()
109 			btrfs_put_ordered_extent(ordered);  in lock_extent_direct()
118 			 * ordered dio extent we created before but did not have  in lock_extent_direct()
121 			 * ordered extent to complete while holding a lock on  in lock_extent_direct()
145 	struct btrfs_ordered_extent *ordered;  in btrfs_create_dio_extent()  local
153 	ordered = btrfs_alloc_ordered_extent(inode, start, file_extent,  in btrfs_create_dio_extent()
156 	if (IS_ERR(ordered)) {  in btrfs_create_dio_extent()
162 		em = ERR_CAST(ordered);  in btrfs_create_dio_extent()
164 		ASSERT(!dio_data->ordered);  in btrfs_create_dio_extent()
165 		dio_data->ordered = ordered;  in btrfs_create_dio_extent()
333 	 * We have created our ordered extent, so we can now release our reservation  in btrfs_get_blocks_direct_write()
626 			btrfs_finish_ordered_extent(dio_data->ordered, NULL,  in btrfs_dio_iomap_end()
634 		btrfs_put_ordered_extent(dio_data->ordered);  in btrfs_dio_iomap_end()
635 		dio_data->ordered = NULL;  in btrfs_dio_iomap_end()
658 		btrfs_finish_ordered_extent(bbio->ordered, NULL,  in btrfs_dio_end_io()
671 					struct btrfs_ordered_extent *ordered)  in btrfs_extract_ordered_extent()  argument
678 	/* Must always be called for the beginning of an ordered extent. */  in btrfs_extract_ordered_extent()
679 	if (WARN_ON_ONCE(start != ordered->disk_bytenr))  in btrfs_extract_ordered_extent()
682 	/* No need to split if the ordered extent covers the entire bio. */  in btrfs_extract_ordered_extent()
683 	if (ordered->disk_num_bytes == len) {  in btrfs_extract_ordered_extent()
684 		refcount_inc(&ordered->refs);  in btrfs_extract_ordered_extent()
685 		bbio->ordered = ordered;  in btrfs_extract_ordered_extent()
693 	if (!test_bit(BTRFS_ORDERED_NOCOW, &ordered->flags)) {  in btrfs_extract_ordered_extent()
695 					     ordered->num_bytes, len,  in btrfs_extract_ordered_extent()
696 					     ordered->disk_bytenr);  in btrfs_extract_ordered_extent()
701 	new = btrfs_split_ordered_extent(ordered, len);  in btrfs_extract_ordered_extent()
704 	bbio->ordered = new;  in btrfs_extract_ordered_extent()
728 	 * the ordered extent to match the submitted bio.  Hang on to the  in btrfs_dio_submit_io()
731 	 * remaining pages is blocked on the outstanding ordered extent.  in btrfs_dio_submit_io()
736 		ret = btrfs_extract_ordered_extent(bbio, dio_data->ordered);  in btrfs_dio_submit_io()
738 			btrfs_finish_ordered_extent(dio_data->ordered, NULL,  in btrfs_dio_submit_io()
891 	 * an ordered extent, and after that it will fault in the pages that the  in btrfs_direct_write()
894 	 * find that ordered extent and then wait for it to complete (at  in btrfs_direct_write()
896 	 * obviously the ordered extent can never complete as we didn't submit  in btrfs_direct_write()
1053 	 * our own ordered extent). This is because for direct IO reads,  in btrfs_direct_read()