From 407c96fc790d0d11ca9603a2a533216c745b5051 Mon Sep 17 00:00:00 2001
From: Stefan Nickl <Stefan.Nickl@gmail.com>
Date: Mon, 13 May 2019 22:33:21 +0200
Subject: [PATCH] Make scheduler functions Linux-compatible

Let sched_getscheduler(), sched_setscheduler(), sched_getparam(),
sched_setparam() invoke the Linux syscalls of the same name instead
of returning -ENOSYS.

Signed-off-by: Stefan Nickl <Stefan.Nickl@gmail.com>
---
 src/sched/sched_getparam.c     | 3 +--
 src/sched/sched_getscheduler.c | 3 +--
 src/sched/sched_setparam.c     | 3 +--
 src/sched/sched_setscheduler.c | 3 +--
 4 files changed, 4 insertions(+), 8 deletions(-)

diff --git a/src/sched/sched_getparam.c b/src/sched/sched_getparam.c
index 76f10e4..65be107 100644
--- a/src/sched/sched_getparam.c
+++ b/src/sched/sched_getparam.c
@@ -1,8 +1,7 @@
 #include <sched.h>
-#include <errno.h>
 #include "syscall.h"
 
 int sched_getparam(pid_t pid, struct sched_param *param)
 {
-	return __syscall_ret(-ENOSYS);
+	return syscall(SYS_sched_getparam, pid, param);
 }
diff --git a/src/sched/sched_getscheduler.c b/src/sched/sched_getscheduler.c
index 394e508..4c922f6 100644
--- a/src/sched/sched_getscheduler.c
+++ b/src/sched/sched_getscheduler.c
@@ -1,8 +1,7 @@
 #include <sched.h>
-#include <errno.h>
 #include "syscall.h"
 
 int sched_getscheduler(pid_t pid)
 {
-	return __syscall_ret(-ENOSYS);
+	return syscall(SYS_sched_getscheduler, pid);
 }
diff --git a/src/sched/sched_setparam.c b/src/sched/sched_setparam.c
index 18623ee..f699faf 100644
--- a/src/sched/sched_setparam.c
+++ b/src/sched/sched_setparam.c
@@ -1,8 +1,7 @@
 #include <sched.h>
-#include <errno.h>
 #include "syscall.h"
 
 int sched_setparam(pid_t pid, const struct sched_param *param)
 {
-	return __syscall_ret(-ENOSYS);
+	return syscall(SYS_sched_setparam, pid, param);
 }
diff --git a/src/sched/sched_setscheduler.c b/src/sched/sched_setscheduler.c
index 4435f21..e678221 100644
--- a/src/sched/sched_setscheduler.c
+++ b/src/sched/sched_setscheduler.c
@@ -1,8 +1,7 @@
 #include <sched.h>
-#include <errno.h>
 #include "syscall.h"
 
 int sched_setscheduler(pid_t pid, int sched, const struct sched_param *param)
 {
-	return __syscall_ret(-ENOSYS);
+	return syscall(SYS_sched_setscheduler, pid, sched, param);
 }
-- 
2.21.0