File 0077-mdadm-udev-Don-t-handle-change-event-on-ra... of Package mdadm

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File 0077-mdadm-udev-Don-t-handle-change-event-on-raw-devices.patch of Package mdadm (Revision 1693a7593a1e760a4bdbc676f6830b87)

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From 24d329fc97a64ec185ef27e59730f3f058c09029 Mon Sep 17 00:00:00 2001
From: Xiao Ni <xni@redhat.com>
Date: Thu, 5 Jan 2023 00:29:20 +0800
Subject: [PATCH] mdadm/udev: Don't handle change event on raw devices

The raw devices are ready when add event happpens and the raid
can be assembled. So there is no need to handle change events.
And it can cause some inconvenient problems.

For example, the OS is installed on md0(/root) and md1(/home).
md0 and md1 are created on partitions. When it wants to re-install
OS, anaconda can't clear the storage configure. It deletes one
partition and does some jobs. The change event happens. Now
the raid device is assembled again. It can't delete the other
partitions.

So in this patch, we don't handle change event on raw devices
anymore.

Signed-off-by: Xiao Ni <xni@redhat.com>
Signed-off-by: Jes Sorensen <jes@trained-monkey.org>
---
 udev-md-raid-assembly.rules | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/udev-md-raid-assembly.rules b/udev-md-raid-assembly.rules
index 39b4344..d4a7f0a 100644
--- a/udev-md-raid-assembly.rules
+++ b/udev-md-raid-assembly.rules
@@ -11,6 +11,11 @@ SUBSYSTEM!="block", GOTO="md_inc_end"
 ENV{SYSTEMD_READY}=="0", GOTO="md_inc_end"
 
 # handle potential components of arrays (the ones supported by md)
+# For member devices which are md/dm devices, we don't need to
+# handle add event. Because md/dm devices need to do some init jobs.
+# Then the change event happens.
+# When adding md/dm devices, ID_FS_TYPE can only be linux_raid_member
+# after change event happens.
 ENV{ID_FS_TYPE}=="linux_raid_member", GOTO="md_inc"
 
 # "noiswmd" on kernel command line stops mdadm from handling
@@ -28,6 +33,9 @@ GOTO="md_inc_end"
 
 LABEL="md_inc"
 
+# Bare disks are ready when add event happens, the raid can be assembled.
+ACTION=="change", KERNEL!="dm-*|md*", GOTO="md_inc_end"
+
 # remember you can limit what gets auto/incrementally assembled by
 # mdadm.conf(5)'s 'AUTO' and selectively whitelist using 'ARRAY'
 ACTION!="remove", IMPORT{program}="BINDIR/mdadm --incremental --export $devnode --offroot $env{DEVLINKS}"
-- 
2.35.3

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File 0077-mdadm-udev-Don-t-handle-change-event-on-raw-devices.patch of Package mdadm (Revision 1693a7593a1e760a4bdbc676f6830b87)

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