From: Mariusz Tkaczyk <mariusz.tkaczyk@intel.com>
Date: Wed, 8 Apr 2020 14:44:52 +0000 (+0200)
Subject: udev: Ignore change event for imsm
X-Git-Tag: mdadm-4.2-rc1~63
X-Git-Url: http://git.ipfire.org/?p=thirdparty%2Fmdadm.git;a=commitdiff_plain;h=e1b92ee0de26576a33b20c9dd6ef6bd8cab8e283

udev: Ignore change event for imsm

When adding a device to a container mdadm has to close its file
descriptor before sysfs_add_disk(). This generates change event.
There is race possibility because metadata is already written and other
-I process can place drive differently. As a result device can be added
to two containers simultaneously.
From IMSM perspective there is no need to react for change event. IMSM
doesn't support stacked devices.

Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@intel.com>
Signed-off-by: Jes Sorensen <jsorensen@fb.com>
---

diff --git a/udev-md-raid-assembly.rules b/udev-md-raid-assembly.rules
index 9f055ed0..d668cddd 100644
--- a/udev-md-raid-assembly.rules
+++ b/udev-md-raid-assembly.rules
@@ -23,7 +23,7 @@ IMPORT{cmdline}="nodmraid"
 ENV{nodmraid}=="?*", GOTO="md_inc_end"
 ENV{ID_FS_TYPE}=="ddf_raid_member", GOTO="md_inc"
 ENV{noiswmd}=="?*", GOTO="md_inc_end"
-ENV{ID_FS_TYPE}=="isw_raid_member", GOTO="md_inc"
+ENV{ID_FS_TYPE}=="isw_raid_member", ACTION!="change", GOTO="md_inc"
 GOTO="md_inc_end"
 
 LABEL="md_inc"