From 8f4aa78a0cb86002273d2884b05618fc05827292 Mon Sep 17 00:00:00 2001
From: Szabolcs Nagy <nsz@port70.net>
Date: Tue, 31 Mar 2020 20:26:53 +0000
Subject: [PATCH] sys/prctl.h: add PR_{SET,GET}_IO_FLUSHER from linux v5.6
needed for storage drivers with userspace component that may
run in the IO path, see
linux commit 8d19f1c8e1937baf74e1962aae9f90fa3aeab463
prctl: PR_{G,S}ET_IO_FLUSHER to support controlling memory reclaim
---
include/sys/prctl.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/sys/prctl.h b/include/sys/prctl.h
index d9c846e9..4b9fcc05 100644
--- a/include/sys/prctl.h
+++ b/include/sys/prctl.h
@@ -158,6 +158,9 @@ struct prctl_mm_map {
#define PR_GET_TAGGED_ADDR_CTRL 56
#define PR_TAGGED_ADDR_ENABLE (1UL << 0)
+#define PR_SET_IO_FLUSHER 57
+#define PR_GET_IO_FLUSHER 58
+
int prctl (int, ...);
#ifdef __cplusplus