btrfs: do not BUGON in linktofixupdir
This is an automated ID intended to aid in discovery of potential security vulnerabilities. The actual impact and attack plausibility have not yet been proven. This ID is fixed in Linux Kernel version v5.4.124 by commit 0ed102453aa1cd12fefde8f6b60b9519b0b1f003, it was introduced in version by commit . For more details please see the references link.