[Xen-API] [xen-api]:Add default none qos_scheduler for ionice

["=?gb18030?b?wO7S5Q==?=" <yilikernel@xxxxxx>]

Hi ALL,

i have install the xen-xapi on centos 6, and may be we can support the ionice back to none.

please check an review.

From c1f5cf58a9d5a24cb98710aab142fc663807dad3 Mon Sep 17 00:00:00 2001

From: root <yili@xxxxxxxxxxx>

Date: Fri, 15 May 2015 19:57:06 -0400

Subject: [PATCH] Add default none qos_scheduler for ionice

The ionice has support 4 scheduling classes

"The scheduling class. 0 for none, 1 for real time, 2 for best-effort, 3 for idle."

Signed-off-by: Yi Li <yili@xxxxxxxxxxx>

---

 ocaml/xapi/xapi_xenops.ml        | 3 ++-

 ocaml/xenops/ionice.ml           | 3 +++

 ocaml/xenops/xenops_interface.ml | 1 +

 3 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/ocaml/xapi/xapi_xenops.ml b/ocaml/xapi/xapi_xenops.ml

index 47c6737..d11c91e 100644

--- a/ocaml/xapi/xapi_xenops.ml

+++ b/ocaml/xapi/xapi_xenops.ml

@@ -360,8 +360,9 @@ module MD = struct

  | "rt" | "real-time" -> RealTime (qos_class params)

  | "idle"             -> Idle

  | "best-effort"      -> BestEffort (qos_class params)

+ | "none"             -> Default (qos_class params)

  | _                  ->

- warn "Unknown VBD QoS scheduler (try 'real-time' 'idle' 'best-effort')";

+ warn "Unknown VBD QoS scheduler (try 'real-time' 'idle' 'best-effort' 'none')";

  BestEffort (qos_class params)

  with Not_found ->

  BestEffort (qos_class params) in

diff --git a/ocaml/xenops/ionice.ml b/ocaml/xenops/ionice.ml

index 37ebd2a..f235e53 100644

--- a/ocaml/xenops/ionice.ml

+++ b/ocaml/xenops/ionice.ml

@@ -28,6 +28,7 @@ let to_class_param =

  | RealTime x   -> 1, (to_param x)

  | Idle         -> 3, (to_param Lowest)

  | BestEffort x -> 2, (to_param x)

+ | Default x -> 0, (to_param x)

 

 let of_class_param_exn cls param =

  let param = match param with

@@ -44,6 +45,8 @@ let of_class_param_exn cls param =

  | "1" -> RealTime param

  | "best-effort"

  | "2" -> BestEffort param

+ | "none"

+ | "0" ->Default param

  | _ -> raise Not_found (* caught below *)

 

 exception Parse_failed of string

diff --git a/ocaml/xenops/xenops_interface.ml b/ocaml/xenops/xenops_interface.ml

index abcf1d2..6f894a1 100644

--- a/ocaml/xenops/xenops_interface.ml

+++ b/ocaml/xenops/xenops_interface.ml

@@ -231,6 +231,7 @@ module Vbd = struct

  | RealTime of qos_class

  | Idle

  | BestEffort of qos_class

+ | Default of qos_class

  type qos =

  | Ionice of qos_scheduler

 

--

1.7.12.4

Attachment: 0001-Add-default-none-qos_scheduler-for-ionice.patch
Description: Binary data

_______________________________________________
Xen-api mailing list
Xen-api@xxxxxxxxxxxxx
http://lists.xen.org/cgi-bin/mailman/listinfo/xen-api