From: Szabolcs Nagy <nsz@port70.net>
Date: Tue, 31 Mar 2020 20:26:53 +0000 (+0000)
Subject: sys/prctl.h: add PR_{SET,GET}_IO_FLUSHER from linux v5.6
X-Git-Url: http://nsz.repo.hu/git/?p=musl;a=commitdiff_plain;h=8f4aa78a0cb86002273d2884b05618fc05827292

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
---

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