1409 				u64 *lockstart, u64 *lockend,  in lock_and_cleanup_extent_if_need()  argument
1449 		*lockstart = start_pos;  in lock_and_cleanup_extent_if_need()
1469 	u64 lockstart, lockend;  in check_can_nocow()  local
1477 	lockstart = round_down(pos, root->sectorsize);  in check_can_nocow()
1481 		lock_extent(&BTRFS_I(inode)->io_tree, lockstart, lockend);  in check_can_nocow()
1482 		ordered = btrfs_lookup_ordered_range(inode, lockstart,  in check_can_nocow()
1483 						     lockend - lockstart + 1);  in check_can_nocow()
1487 		unlock_extent(&BTRFS_I(inode)->io_tree, lockstart, lockend);  in check_can_nocow()
1492 	num_bytes = lockend - lockstart + 1;  in check_can_nocow()
1493 	ret = can_nocow_extent(inode, lockstart, &num_bytes, NULL, NULL, NULL);  in check_can_nocow()
1499 				     num_bytes - pos + lockstart);  in check_can_nocow()
1502 	unlock_extent(&BTRFS_I(inode)->io_tree, lockstart, lockend);  in check_can_nocow()
1516 	u64 lockstart;  in __btrfs_buffered_write()  local
1611 						pos, write_bytes, &lockstart,  in __btrfs_buffered_write()
1689 					     lockstart, lockend, &cached_state,  in __btrfs_buffered_write()
1701 			lockstart = round_down(pos, root->sectorsize);  in __btrfs_buffered_write()
1704 			set_extent_bit(&BTRFS_I(inode)->io_tree, lockstart,  in __btrfs_buffered_write()
2344 	u64 lockstart;  in btrfs_punch_hole()  local
2376 	lockstart = round_up(offset, BTRFS_I(inode)->root->sectorsize);  in btrfs_punch_hole()
2415 		len = offset + len - lockstart;  in btrfs_punch_hole()
2416 		offset = lockstart;  in btrfs_punch_hole()
2424 		lockstart = offset;  in btrfs_punch_hole()
2447 	if (lockend < lockstart) {  in btrfs_punch_hole()
2455 		truncate_pagecache_range(inode, lockstart, lockend);  in btrfs_punch_hole()
2457 		lock_extent_bits(&BTRFS_I(inode)->io_tree, lockstart, lockend,  in btrfs_punch_hole()
2467 		    (ordered->file_offset + ordered->len <= lockstart ||  in btrfs_punch_hole()
2469 		     !btrfs_page_exists_in_range(inode, lockstart, lockend)) {  in btrfs_punch_hole()
2476 		unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart,  in btrfs_punch_hole()
2478 		ret = btrfs_wait_ordered_range(inode, lockstart,  in btrfs_punch_hole()
2479 					       lockend - lockstart + 1);  in btrfs_punch_hole()
2517 	cur_offset = lockstart;  in btrfs_punch_hole()
2617 	unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart, lockend,  in btrfs_punch_hole()
2899 	u64 lockstart;  in find_desired_extent()  local
2914 	lockstart = round_down(start, root->sectorsize);  in find_desired_extent()
2916 	if (lockend <= lockstart)  in find_desired_extent()
2917 		lockend = lockstart + root->sectorsize;  in find_desired_extent()
2919 	len = lockend - lockstart + 1;  in find_desired_extent()
2921 	lock_extent_bits(&BTRFS_I(inode)->io_tree, lockstart, lockend,  in find_desired_extent()
2953 	unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart, lockend,  in find_desired_extent()