| 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" |