File 0056-mdmon-Remove-need-for-KillMode-none.patch of Package mdadm

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File 0056-mdmon-Remove-need-for-KillMode-none.patch of Package mdadm

From 0f9a4b3e11fbe4f8631d20b1f89cf43e9219db55 Mon Sep 17 00:00:00 2001
From: NeilBrown <neilb@suse.de>
Date: Mon, 13 Mar 2023 14:42:58 +1100
Subject: [PATCH] mdmon: Remove need for KillMode=none

mdmon needs to keep running during the switchroot out of (at boot) and
then back into (at shutdown) the initrd.  It runs until a new mdmon
takes over.

Killmode=none is used to achieve this, with the help of --offroot which
sets argv[0][0] to '@' which systemd understands.

This is needed because mdmon is currently run in system-mdmon.slice
which conflicts with shutdown.target so without Killmode=none mdmon
would get killed early in shutdown when system.mdmon.slice is removed.

As described in systemd.service(5), this conflict with shutdown can be
resolved by explicitly requesting system.slice, which is a natural
counterpart to DefaultDependencies=no.

So add that, and also add IgnoreOnIsolate=true to avoid another possible
source of an early death.  With these we no longer need KillMode=none
which the systemd developers have marked as "deprecated".

Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Jes Sorensen <jes@trained-monkey.org>
---
 systemd/mdmon@.service | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/systemd/mdmon@.service b/systemd/mdmon@.service
index bba9b0e..303ad05 100644
--- a/systemd/mdmon@.service
+++ b/systemd/mdmon@.service
@@ -10,6 +10,9 @@ Description=MD Metadata Monitor on /dev/%I
 DefaultDependencies=no
 Before=initrd-switch-root.target
 Documentation=man:mdmon(8)
+# Allow mdmon to keep running after switchroot, until a new
+# instance is started.
+IgnoreOnIsolate=true
 
 [Service]
 # mdmon should never complain due to lack of a platform,
@@ -25,4 +28,6 @@ ExecStart=BINDIR/mdmon --foreground --offroot --takeover %I
 # it out) and systemd will remove it when transitioning from
 # initramfs to rootfs.
 #PIDFile=/run/mdadm/%I.pid
-KillMode=none
+# The default slice is system-mdmon.slice which Conflicts
+# with shutdown, causing mdmon to exit early.  So use system.slice.
+Slice=system.slice
-- 
2.35.3

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File 0056-mdmon-Remove-need-for-KillMode-none.patch of Package mdadm

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