From 4199d3c629c14866505923d19fa50017ee92d2e1 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.com>
Date: Wed, 5 Dec 2018 16:35:00 +1100
Subject: [RHEL7.7 PATCH 04/24] mdcheck: add systemd unit files to run mdcheck.

Having the mdcheck script is not use if is never run.
This patch adds systemd unit files so that it can easily
be run on the first Sunday of each month for 6 hours,
then on every subsequent morning until the check is
finished.

The units still need to be enabled with
  systemctl enable mdcheck_start.timer

The timer will only actually be started when an array
which might need it becomes active.

Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
---
 Makefile                         |  5 ++++-
 systemd/mdcheck_continue.service | 18 ++++++++++++++++++
 systemd/mdcheck_continue.timer   | 13 +++++++++++++
 systemd/mdcheck_start.service    | 17 +++++++++++++++++
 systemd/mdcheck_start.timer      | 15 +++++++++++++++
 5 files changed, 67 insertions(+), 1 deletion(-)
 create mode 100644 systemd/mdcheck_continue.service
 create mode 100644 systemd/mdcheck_continue.timer
 create mode 100644 systemd/mdcheck_start.service
 create mode 100644 systemd/mdcheck_start.timer

diff --git a/Makefile b/Makefile
index 2767ac6..afb62cc 100644
--- a/Makefile
+++ b/Makefile
@@ -276,7 +276,10 @@ install-udev: udev-md-raid-arrays.rules udev-md-raid-assembly.rules udev-md-raid
 
 install-systemd: systemd/mdmon@.service
 	@for file in mdmon@.service mdmonitor.service mdadm-last-resort@.timer \
-		mdadm-last-resort@.service mdadm-grow-continue@.service; \
+		mdadm-last-resort@.service mdadm-grow-continue@.service \
+		mdcheck_start.timer mdcheck_start.service \
+		mdcheck_continue.timer mdcheck_continue.service \
+		; \
 	do sed -e 's,BINDIR,$(BINDIR),g' systemd/$$file > .install.tmp.2 && \
 	   $(ECHO) $(INSTALL) -D -m 644 systemd/$$file $(DESTDIR)$(SYSTEMD_DIR)/$$file ; \
 	   $(INSTALL) -D -m 644 .install.tmp.2 $(DESTDIR)$(SYSTEMD_DIR)/$$file ; \
diff --git a/systemd/mdcheck_continue.service b/systemd/mdcheck_continue.service
new file mode 100644
index 0000000..592c607
--- /dev/null
+++ b/systemd/mdcheck_continue.service
@@ -0,0 +1,18 @@
+#  This file is part of mdadm.
+#
+#  mdadm is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+
+[Unit]
+Description=MD array scrubbing - continuation
+ConditionPathExistsGlob = /var/lib/mdcheck/MD_UUID_*
+
+[Service]
+Type=oneshot
+Environment= MDADM_CHECK_DURATION='"6 hours"'
+EnvironmentFile=-/run/sysconfig/mdadm
+ExecStartPre=-/usr/lib/mdadm/mdadm_env.sh
+ExecStart=/usr/share/mdadm/mdcheck --continue --duration $MDADM_CHECK_DURATION
+
diff --git a/systemd/mdcheck_continue.timer b/systemd/mdcheck_continue.timer
new file mode 100644
index 0000000..3ccfd78
--- /dev/null
+++ b/systemd/mdcheck_continue.timer
@@ -0,0 +1,13 @@
+#  This file is part of mdadm.
+#
+#  mdadm is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+
+[Unit]
+Description=MD array scrubbing - continuation
+
+[Timer]
+OnCalendar= 1:05:00
+
diff --git a/systemd/mdcheck_start.service b/systemd/mdcheck_start.service
new file mode 100644
index 0000000..812141b
--- /dev/null
+++ b/systemd/mdcheck_start.service
@@ -0,0 +1,17 @@
+#  This file is part of mdadm.
+#
+#  mdadm is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+
+[Unit]
+Description=MD array scrubbing
+Wants=mdcheck_continue.timer
+
+[Service]
+Type=oneshot
+Environment= MDADM_CHECK_DURATION='"6 hours"'
+EnvironmentFile=-/run/sysconfig/mdadm
+ExecStartPre=-/usr/lib/mdadm/mdadm_env.sh
+ExecStart=/usr/share/mdadm/mdcheck --duration $MDADM_CHECK_DURATION
diff --git a/systemd/mdcheck_start.timer b/systemd/mdcheck_start.timer
new file mode 100644
index 0000000..6480736
--- /dev/null
+++ b/systemd/mdcheck_start.timer
@@ -0,0 +1,15 @@
+#  This file is part of mdadm.
+#
+#  mdadm is free software; you can redistribute it and/or modify it
+#  under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+
+[Unit]
+Description=MD array scrubbing
+
+[Timer]
+OnCalendar=Sun *-*-1..7 1:00:00
+
+[Install]
+WantedBy= mdmonitor.service
-- 
2.7.5