Revert "Revert "block, bfq: honor already-setup queue merges""
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 v4.19.238 by commit f990f0985eda59d4f29fc83fcf300c92b1225d39. For more details please see the references link.