4e432a8739
Signed-off-by: wangzhiqiang <wangzhiqiang95@huawei.com> (cherry picked from commit 9a108ba8d3d3c02b92c57029376963419a4d5c65)
44 lines
1.8 KiB
Diff
44 lines
1.8 KiB
Diff
From 0ffad44e2b768a09be410b7d0decceb6404c46d1 Mon Sep 17 00:00:00 2001
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From: Martin Wilck <mwilck@suse.com>
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Date: Fri, 28 Jan 2022 14:42:29 +0100
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Subject: [PATCH 1/2] udev: create symlinks and watch even in suspended state
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If a dm device is suspended, we can't run blkid on it. But earlier
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rules (e.g. 11-dm-parts.rules) might have imported previously scanned
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properties from the udev db, in particular if the device had been correctly
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set up beforehand (DM_UDEV_PRIMARY_SOURCE_FLAG==1). Symlinks for existing
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ID_FS_xyz properties must be preserved in this case. Otherwise lower-priority
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devices (such as multipath components) might take over the symlink
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temporarily.
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Likewise, we should't stop watching a temporarily suspended, but previously
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correctly configured dm device.
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Signed-off-by: Martin Wilck <mwilck@suse.com>
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---
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udev/13-dm-disk.rules.in | 4 ++++
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1 file changed, 4 insertions(+)
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diff --git a/udev/13-dm-disk.rules.in b/udev/13-dm-disk.rules.in
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index fcb2f37..18254b4 100644
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--- a/udev/13-dm-disk.rules.in
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+++ b/udev/13-dm-disk.rules.in
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@@ -17,10 +17,14 @@ ENV{DM_UDEV_DISABLE_DISK_RULES_FLAG}=="1", GOTO="dm_end"
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ENV{DM_NAME}=="?*", SYMLINK+="disk/by-id/dm-name-$env{DM_NAME}"
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ENV{DM_UUID}=="?*", SYMLINK+="disk/by-id/dm-uuid-$env{DM_UUID}"
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+ENV{DM_SUSPENDED}=="1", ENV{DM_UDEV_PRIMARY_SOURCE_FLAG}=="1", GOTO="dm_link"
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+ENV{DM_NOSCAN}=="1", ENV{DM_UDEV_PRIMARY_SOURCE_FLAG}=="1", GOTO="dm_link"
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ENV{DM_SUSPENDED}=="1", GOTO="dm_end"
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ENV{DM_NOSCAN}=="1", GOTO="dm_watch"
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(BLKID_RULE)
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+
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+LABEL="dm_link"
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ENV{DM_UDEV_LOW_PRIORITY_FLAG}=="1", OPTIONS="link_priority=-100"
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ENV{ID_FS_USAGE}=="filesystem|other|crypto", ENV{ID_FS_UUID_ENC}=="?*", SYMLINK+="disk/by-uuid/$env{ID_FS_UUID_ENC}"
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ENV{ID_FS_USAGE}=="filesystem|other", ENV{ID_FS_LABEL_ENC}=="?*", SYMLINK+="disk/by-label/$env{ID_FS_LABEL_ENC}"
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--
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2.33.0
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