1373 				u64 *lockstart, u64 *lockend,  in lock_and_cleanup_extent_if_need()  argument
1412 		*lockend = last_pos;  in lock_and_cleanup_extent_if_need()
1431 	u64 lockstart, lockend;  in check_can_nocow()  local
1440 	lockend = round_up(pos + *write_bytes, root->sectorsize) - 1;  in check_can_nocow()
1443 		lock_extent(&BTRFS_I(inode)->io_tree, lockstart, lockend);  in check_can_nocow()
1445 						     lockend - lockstart + 1);  in check_can_nocow()
1449 		unlock_extent(&BTRFS_I(inode)->io_tree, lockstart, lockend);  in check_can_nocow()
1454 	num_bytes = lockend - lockstart + 1;  in check_can_nocow()
1464 	unlock_extent(&BTRFS_I(inode)->io_tree, lockstart, lockend);  in check_can_nocow()
1479 	u64 lockend;  in __btrfs_buffered_write()  local
1569 						      pos, &lockstart, &lockend,  in __btrfs_buffered_write()
1630 					     lockstart, lockend, &cached_state,  in __btrfs_buffered_write()
1643 			lockend = lockstart +  in __btrfs_buffered_write()
1647 				       lockend, EXTENT_NORESERVE, NULL,  in __btrfs_buffered_write()
2265 	u64 lockend;  in btrfs_punch_hole()  local
2297 	lockend = round_down(offset + len,  in btrfs_punch_hole()
2349 	tail_start = lockend + 1;  in btrfs_punch_hole()
2367 	if (lockend < lockstart) {  in btrfs_punch_hole()
2375 		truncate_pagecache_range(inode, lockstart, lockend);  in btrfs_punch_hole()
2377 		lock_extent_bits(&BTRFS_I(inode)->io_tree, lockstart, lockend,  in btrfs_punch_hole()
2379 		ordered = btrfs_lookup_first_ordered_extent(inode, lockend);  in btrfs_punch_hole()
2388 		     ordered->file_offset > lockend)) &&  in btrfs_punch_hole()
2389 		     !btrfs_page_exists_in_range(inode, lockstart, lockend)) {  in btrfs_punch_hole()
2397 				     lockend, &cached_state, GFP_NOFS);  in btrfs_punch_hole()
2399 					       lockend - lockstart + 1);  in btrfs_punch_hole()
2438 	len = lockend - cur_offset;  in btrfs_punch_hole()
2439 	while (cur_offset < lockend) {  in btrfs_punch_hole()
2441 					   cur_offset, lockend + 1,  in btrfs_punch_hole()
2524 	unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart, lockend,  in btrfs_punch_hole()
2721 	u64 lockend;  in find_desired_extent()  local
2736 	lockend = round_up(i_size_read(inode), root->sectorsize);  in find_desired_extent()
2737 	if (lockend <= lockstart)  in find_desired_extent()
2738 		lockend = lockstart + root->sectorsize;  in find_desired_extent()
2739 	lockend--;  in find_desired_extent()
2740 	len = lockend - lockstart + 1;  in find_desired_extent()
2742 	lock_extent_bits(&BTRFS_I(inode)->io_tree, lockstart, lockend, 0,  in find_desired_extent()
2774 	unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart, lockend,  in find_desired_extent()