On 11/12/20 11:35 AM, Felix Fietkau wrote:
It is needed for mt76
Signed-off-by: Felix Fietkau <nbd@xxxxxxxx>
---
backport/backport-include/linux/sched.h | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
create mode 100644 backport/backport-include/linux/sched.h
diff --git a/backport/backport-include/linux/sched.h b/backport/backport-include/linux/sched.h
new file mode 100644
index 000000000000..be77a8d771ab
--- /dev/null
+++ b/backport/backport-include/linux/sched.h
@@ -0,0 +1,19 @@
+#ifndef __BACKPORT_LINUX_SCHED_H
+#define __BACKPORT_LINUX_SCHED_H
+
+#include_next <linux/sched.h>
+#include <linux/version.h>
+
+#if LINUX_VERSION_IS_LESS(5,9,0)
+#include <uapi/linux/sched/types.h>
+
+static inline void sched_set_fifo_low(struct task_struct *p)
+{
+ struct sched_param sparam = {.sched_priority = 1};
+
+ sched_setscheduler(p, SCHED_FIFO, &sparam);
Hi Felix,
The upstream kernel uses this in sched_set_fifo_low():
WARN_ON_ONCE(sched_setscheduler_nocheck(p, SCHED_FIFO, &sp) != 0);
See:
https://elixir.bootlin.com/linux/v5.10-rc3/source/kernel/sched/core.c#L5570
Did you change this intentionally?
Hauke
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