SUBSYSTEM!="block", GOTO="btrfs_end" ACTION!="add|change", GOTO="btrfs_end" ENV{ID_FS_TYPE}!="btrfs", GOTO="btrfs_end" # Zoned btrfs needs an IO scheduler that supports zone write locking and # currently mq-deadline is the only scheduler capable of this. ATTR{queue/zoned}=="host-managed", ATTR{queue/scheduler}="mq-deadline" LABEL="btrfs_end"