Block

• BFQ (Budget Fair Queueing)
• Immutable biovecs and biovec iterators
• Multi-Queue Block IO Queueing Mechanism (blk-mq)
• Generic Block Device Capability
• Embedded device command line partition parsing
• Data Integrity
• Deadline IO scheduler tunables
• Inline Encryption
• Block io priorities
• Kyber I/O scheduler tunables
• Null block device driver
• Block layer support for Persistent Reservations
• struct request documentation
• Block layer statistics in /sys/block/<dev>/stat
• Switching Scheduler
• Explicit volatile write back cache control
• Userspace block device driver (ublk driver)