# SPDX-License-Identifier: GPL-2.0

  if BLOCK

  
  menu "IO Schedulers"

  config MQ_IOSCHED_DEADLINE
  	tristate "MQ deadline I/O scheduler"
  	default y
  	---help---
  	  MQ version of the deadline IO scheduler.

  config MQ_IOSCHED_KYBER
  	tristate "Kyber I/O scheduler"
  	default y
  	---help---
  	  The Kyber I/O scheduler is a low-overhead scheduler suitable for
  	  multiqueue and other fast devices. Given target latencies for reads and
  	  synchronous writes, it will self-tune queue depths to achieve that
  	  goal.

  config IOSCHED_BFQ
  	tristate "BFQ I/O scheduler"

  	---help---
  	BFQ I/O scheduler for BLK-MQ. BFQ distributes the bandwidth of
  	of the device among all processes according to their weights,
  	regardless of the device parameters and with any workload. It
  	also guarantees a low latency to interactive and soft
  	real-time applications.  Details in

  	Documentation/block/bfq-iosched.rst

  config BFQ_GROUP_IOSCHED
         bool "BFQ hierarchical scheduling support"
         depends on IOSCHED_BFQ && BLK_CGROUP

         ---help---
  
         Enable hierarchical scheduling in BFQ, using the blkio
         (cgroups-v1) or io (cgroups-v2) controller.

  config BFQ_CGROUP_DEBUG
  	bool "BFQ IO controller debugging"
  	depends on BFQ_GROUP_IOSCHED
  	---help---
  	Enable some debugging help. Currently it exports additional stat
  	files in a cgroup which can be useful for debugging.

  endmenu

  
  endif