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56 lines
2.0 KiB
56 lines
2.0 KiB
1 year ago
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From 0f9a4b3e11fbe4f8631d20b1f89cf43e9219db55 Mon Sep 17 00:00:00 2001
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From: NeilBrown <neilb@suse.de>
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Date: Mon, 13 Mar 2023 14:42:58 +1100
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Subject: [PATCH 110/125] mdmon: Remove need for KillMode=none
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mdmon needs to keep running during the switchroot out of (at boot) and
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then back into (at shutdown) the initrd. It runs until a new mdmon
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takes over.
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Killmode=none is used to achieve this, with the help of --offroot which
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sets argv[0][0] to '@' which systemd understands.
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This is needed because mdmon is currently run in system-mdmon.slice
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which conflicts with shutdown.target so without Killmode=none mdmon
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would get killed early in shutdown when system.mdmon.slice is removed.
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As described in systemd.service(5), this conflict with shutdown can be
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resolved by explicitly requesting system.slice, which is a natural
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counterpart to DefaultDependencies=no.
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So add that, and also add IgnoreOnIsolate=true to avoid another possible
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source of an early death. With these we no longer need KillMode=none
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which the systemd developers have marked as "deprecated".
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Signed-off-by: NeilBrown <neilb@suse.de>
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Signed-off-by: Jes Sorensen <jes@trained-monkey.org>
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---
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systemd/mdmon@.service | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/systemd/mdmon@.service b/systemd/mdmon@.service
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index bba9b0eb..303ad05c 100644
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--- a/systemd/mdmon@.service
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+++ b/systemd/mdmon@.service
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@@ -10,6 +10,9 @@ Description=MD Metadata Monitor on /dev/%I
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DefaultDependencies=no
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Before=initrd-switch-root.target
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Documentation=man:mdmon(8)
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+# Allow mdmon to keep running after switchroot, until a new
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+# instance is started.
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+IgnoreOnIsolate=true
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[Service]
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# mdmon should never complain due to lack of a platform,
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@@ -25,4 +28,6 @@ ExecStart=BINDIR/mdmon --foreground --offroot --takeover %I
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# it out) and systemd will remove it when transitioning from
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# initramfs to rootfs.
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#PIDFile=/run/mdadm/%I.pid
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-KillMode=none
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+# The default slice is system-mdmon.slice which Conflicts
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+# with shutdown, causing mdmon to exit early. So use system.slice.
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+Slice=system.slice
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--
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2.38.1
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