diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 344a322..ef6fc58 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -6586,7 +6586,7 @@
 		 * extent causing the -EEXIST.
 		 */
 		if (start >= extent_map_end(existing) ||
-		    start + len <= existing->start) {
+		    start <= existing->start) {
 			/*
 			 * The existing extent map is the one nearest to
 			 * the [start, start + len) range which overlaps