[PATCH] Documentation: block: ioprio: Update schedulers

[Christian Loehle <christian.loehle@arm.com>]

This doc hasn't been touched in a while, in the meantime some
new io schedulers were added (e.g. all of mq), some with ioprio
support.

Signed-off-by: Christian Loehle <christian.loehle@arm.com>
---
 Documentation/block/ioprio.rst | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/Documentation/block/ioprio.rst b/Documentation/block/ioprio.rst
index a25c6d5df87b..5410308888d2 100644
--- a/Documentation/block/ioprio.rst
+++ b/Documentation/block/ioprio.rst
@@ -9,14 +9,14 @@ Intro
 With the introduction of cfq v3 (aka cfq-ts or time sliced cfq), basic io
 priorities are supported for reads on files.  This enables users to io nice
 processes or process groups, similar to what has been possible with cpu
-scheduling for ages.  This document mainly details the current possibilities
-with cfq; other io schedulers do not support io priorities thus far.
+scheduling for ages. Support for io priorities is io scheduler dependent and
+currently supported by bfq, mq-deadline and cfq.
 
 Scheduling classes
 ------------------
 
-CFQ implements three generic scheduling classes that determine how io is
-served for a process.
+Three generic scheduling classes are implemented for io priorities that
+determine how io is served for a process.
 
 IOPRIO_CLASS_RT: This is the realtime io class. This scheduling class is given
 higher priority than any other in the system, processes from this class are
-- 
2.34.1