1373 				u64 *lockstart, u64 *lockend,  in lock_and_cleanup_extent_if_need()  argument
1411 		*lockstart = start_pos;  in lock_and_cleanup_extent_if_need()
1431 	u64 lockstart, lockend;  in check_can_nocow()  local
1439 	lockstart = round_down(pos, root->sectorsize);  in check_can_nocow()
1443 		lock_extent(&BTRFS_I(inode)->io_tree, lockstart, lockend);  in check_can_nocow()
1444 		ordered = btrfs_lookup_ordered_range(inode, lockstart,  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()
1455 	ret = can_nocow_extent(inode, lockstart, &num_bytes, NULL, NULL, NULL);  in check_can_nocow()
1461 				     num_bytes - pos + lockstart);  in check_can_nocow()
1464 	unlock_extent(&BTRFS_I(inode)->io_tree, lockstart, lockend);  in check_can_nocow()
1478 	u64 lockstart;  in __btrfs_buffered_write()  local
1569 						      pos, &lockstart, &lockend,  in __btrfs_buffered_write()
1630 					     lockstart, lockend, &cached_state,  in __btrfs_buffered_write()
1642 			lockstart = round_down(pos, root->sectorsize);  in __btrfs_buffered_write()
1643 			lockend = lockstart +  in __btrfs_buffered_write()
1646 			set_extent_bit(&BTRFS_I(inode)->io_tree, lockstart,  in __btrfs_buffered_write()
2264 	u64 lockstart;  in btrfs_punch_hole()  local
2296 	lockstart = round_up(offset, BTRFS_I(inode)->root->sectorsize);  in btrfs_punch_hole()
2336 		len = offset + len - lockstart;  in btrfs_punch_hole()
2337 		offset = lockstart;  in btrfs_punch_hole()
2345 		lockstart = offset;  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()
2387 		    (ordered->file_offset + ordered->len <= lockstart ||  in btrfs_punch_hole()
2389 		     !btrfs_page_exists_in_range(inode, lockstart, lockend)) {  in btrfs_punch_hole()
2396 		unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart,  in btrfs_punch_hole()
2398 		ret = btrfs_wait_ordered_range(inode, lockstart,  in btrfs_punch_hole()
2399 					       lockend - lockstart + 1);  in btrfs_punch_hole()
2437 	cur_offset = lockstart;  in btrfs_punch_hole()
2524 	unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart, lockend,  in btrfs_punch_hole()
2720 	u64 lockstart;  in find_desired_extent()  local
2735 	lockstart = round_down(start, root->sectorsize);  in find_desired_extent()
2737 	if (lockend <= lockstart)  in find_desired_extent()
2738 		lockend = lockstart + root->sectorsize;  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()