1421  * This function locks the extent and properly waits for data=ordered extents
1447 		struct btrfs_ordered_extent *ordered;  in lock_and_cleanup_extent_if_need()  local
1451 		ordered = btrfs_lookup_ordered_range(inode, start_pos,  in lock_and_cleanup_extent_if_need()
1453 		if (ordered &&  in lock_and_cleanup_extent_if_need()
1454 		    ordered->file_offset + ordered->num_bytes > start_pos &&  in lock_and_cleanup_extent_if_need()
1455 		    ordered->file_offset <= last_pos) {  in lock_and_cleanup_extent_if_need()
1462 			btrfs_start_ordered_extent(ordered, 1);  in lock_and_cleanup_extent_if_need()
1463 			btrfs_put_ordered_extent(ordered);  in lock_and_cleanup_extent_if_need()
1466 		if (ordered)  in lock_and_cleanup_extent_if_need()
1467 			btrfs_put_ordered_extent(ordered);  in lock_and_cleanup_extent_if_need()
1505 		struct btrfs_ordered_extent *ordered;  in check_can_nocow()  local
1510 		ordered = btrfs_lookup_ordered_range(inode, lockstart,  in check_can_nocow()
1512 		if (ordered) {  in check_can_nocow()
1513 			btrfs_put_ordered_extent(ordered);  in check_can_nocow()
1551  * This function will flush ordered extents in the range to ensure proper
1557  * -EAGAIN	if we can't get the needed lock or there are ordered extents
2095 	 * update the last_trans of the inode during ordered extent completion,  in skip_inode_logging()
2111  * It needs to call filemap_fdatawait so that all ordered extent updates are
2138 	 * races between hole detection during logging and completion of ordered  in btrfs_sync_file()
2139 	 * extents outside the range, to missing checksums due to ordered extents  in btrfs_sync_file()
2184 	 * wait for all ordered extents to complete below.  in btrfs_sync_file()
2196 	 * For a full fsync we wait for the ordered extents to complete while  in btrfs_sync_file()
2198 	 * attach the ordered extents to the transaction so that a transaction  in btrfs_sync_file()
2200 	 * the current transaction commits before the ordered extents complete  in btrfs_sync_file()
2204 	 * logical address recorded in the ordered extent may change. We need  in btrfs_sync_file()
2211 		 * Get our ordered extents as soon as possible to avoid doing  in btrfs_sync_file()
2213 		 * checksums attached to the ordered extents.  in btrfs_sync_file()
2235 		 * An ordered extent might have started before and completed  in btrfs_sync_file()
2511 		struct btrfs_ordered_extent *ordered;  in btrfs_punch_hole_lock_range()  local
2518 		ordered = btrfs_lookup_first_ordered_extent(BTRFS_I(inode),  in btrfs_punch_hole_lock_range()
2522 		 * We need to make sure we have no ordered extents in this range  in btrfs_punch_hole_lock_range()
2526 		if ((!ordered ||  in btrfs_punch_hole_lock_range()
2527 		    (ordered->file_offset + ordered->num_bytes <= lockstart ||  in btrfs_punch_hole_lock_range()
2528 		     ordered->file_offset > lockend)) &&  in btrfs_punch_hole_lock_range()
2531 			if (ordered)  in btrfs_punch_hole_lock_range()
2532 				btrfs_put_ordered_extent(ordered);  in btrfs_punch_hole_lock_range()
2535 		if (ordered)  in btrfs_punch_hole_lock_range()
2536 			btrfs_put_ordered_extent(ordered);  in btrfs_punch_hole_lock_range()
3400 	 * wait for ordered IO before we have any locks.  We'll loop again  in btrfs_fallocate()
3416 		struct btrfs_ordered_extent *ordered;  in btrfs_fallocate()  local
3418 		/* the extent lock is ordered inside the running  in btrfs_fallocate()
3423 		ordered = btrfs_lookup_first_ordered_extent(BTRFS_I(inode),  in btrfs_fallocate()
3426 		if (ordered &&  in btrfs_fallocate()
3427 		    ordered->file_offset + ordered->num_bytes > alloc_start &&  in btrfs_fallocate()
3428 		    ordered->file_offset < alloc_end) {  in btrfs_fallocate()
3429 			btrfs_put_ordered_extent(ordered);  in btrfs_fallocate()
3442 			if (ordered)  in btrfs_fallocate()
3443 				btrfs_put_ordered_extent(ordered);  in btrfs_fallocate()
3729 	 * from there.  We have to do this otherwise we'll miss the ordered  in btrfs_fdatawrite_range()