systemd/1004-udev-don-t-create-by-partlabel-primary-and-.-logical.patch
2024-02-05 14:59:02 +08:00

74 lines
3.3 KiB
Diff

From 7f1527dfc0e606ddf41738c2d871058903ac5cb4 Mon Sep 17 00:00:00 2001
From: Martin Wilck <mwilck@suse.com>
Date: Mon, 16 Apr 2018 23:03:27 +0200
Subject: [PATCH 1004/1007] udev: don't create by-partlabel/primary and
.../logical symlinks
These links are created by libstorage / parted by default. They are ambiguous
and may be present hundred- or thousandfold on large systems. They are
meaningless for device identification and may slow down udev processing. They
aren't used anywhere. Don't create them.
A service has been added to detect at boot cases that likely need to be fixed:
a warning is thrown at both the console and syslog to encourage sysadmin to
consult the relevant TID explaining how to permanently fix the issue.
[fbui: added the detection part]
[fbui: fixes bsc#1089761]
---
rules.d/60-persistent-storage.rules | 2 +-
units/detect-part-label-duplicates.service | 16 ++++++++++++++++
units/meson.build | 2 ++
3 files changed, 19 insertions(+), 1 deletion(-)
create mode 100644 units/detect-part-label-duplicates.service
diff --git a/rules.d/60-persistent-storage.rules b/rules.d/60-persistent-storage.rules
index 6ac17f2b64..450c271678 100644
--- a/rules.d/60-persistent-storage.rules
+++ b/rules.d/60-persistent-storage.rules
@@ -119,6 +119,6 @@ ENV{DEVTYPE}=="partition", ENV{ID_WWN_WITH_EXTENSION}=="?*", SYMLINK+="disk/by-i
# by-partlabel/by-partuuid links (partition metadata)
ENV{ID_PART_ENTRY_UUID}=="?*", SYMLINK+="disk/by-partuuid/$env{ID_PART_ENTRY_UUID}"
-ENV{ID_PART_ENTRY_SCHEME}=="gpt", ENV{ID_PART_ENTRY_NAME}=="?*", SYMLINK+="disk/by-partlabel/$env{ID_PART_ENTRY_NAME}"
+ENV{ID_PART_ENTRY_SCHEME}=="gpt", ENV{ID_PART_ENTRY_NAME}=="?*", ENV{ID_PART_ENTRY_NAME}!="primary|logical", SYMLINK+="disk/by-partlabel/$env{ID_PART_ENTRY_NAME}"
LABEL="persistent_storage_end"
diff --git a/units/detect-part-label-duplicates.service b/units/detect-part-label-duplicates.service
new file mode 100644
index 0000000000..11a187c763
--- /dev/null
+++ b/units/detect-part-label-duplicates.service
@@ -0,0 +1,16 @@
+[Unit]
+Description=Detect if the system suffers from bsc#1089761
+ConditionDirectoryNotEmpty=/run/udev/data
+
+[Service]
+RemainAfterExit=true
+StandardOutput=journal+console
+SyslogLevel=warning
+ExecStart=/bin/sh -c " \
+ if [ $(grep -r "E:ID_PART_ENTRY_NAME=primary" /run/udev/data | wc -l) -ge 100 ]; then \
+ echo 'Warning: a high number of partitions uses \"primary\" or \"logical\" as'; \
+ echo 'partition label name, which may cause slow-down in the boot process.'; \
+ echo 'To prevent it, a workaround is temporarly in place but we recommend to'; \
+ echo 'refer to TID #7023057 in order to permanently fix this issue (as the'; \
+ echo 'workaround will be dropped in the future).'; \
+ fi"
diff --git a/units/meson.build b/units/meson.build
index 17e9ead9c1..86e2f77b95 100644
--- a/units/meson.build
+++ b/units/meson.build
@@ -13,6 +13,8 @@ units = [
['veritysetup-pre.target', 'HAVE_LIBCRYPTSETUP'],
['veritysetup.target', 'HAVE_LIBCRYPTSETUP',
'sysinit.target.wants/'],
+ ['detect-part-label-duplicates.service', '',
+ 'sysinit.target.wants/'],
['dev-hugepages.mount', '',
'sysinit.target.wants/'],
['dev-mqueue.mount', '',
--
2.31.1