From 8d0e75ece555bb9ade4c2d2cc9e2f8b6ff71747d Mon Sep 17 00:00:00 2001
From: Donald Buczek <buczek@molgen.mpg.de>
Date: Fri, 23 Sep 2022 08:27:01 +0200
Subject: [PATCH] config-mpi: Reenable /proc/PID/io

/proc/PID/io depend on TASK_IO_ACCOUNTING -> TASK_XACCT ->
TASKSTATS.

TASKSTATS has been autoselected by KVM until 63b3f96e1a9 ("kvm: Select
SCHED_INFO instead of TASK_DELAY_ACCT ") which landed in v5.14.

To keep this feature, select TASK_IO_ACCOUNTING and its dependencies
explicitly.
---
 config-mpi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/config-mpi b/config-mpi
index 58d8fa37412ea..6f7e863f57d61 100644
--- a/config-mpi
+++ b/config-mpi
@@ -9,6 +9,9 @@ CONFIG_BPF_SYSCALL=y
 CONFIG_PREEMPT_VOLUNTARY=y
 CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_TASKSTATS=y
+CONFIG_TASK_XACCT=y
+CONFIG_TASK_IO_ACCOUNTING=y
 CONFIG_PSI=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y