forked from pool/systemd
52c26aaa4e
OBS-URL: https://build.opensuse.org/request/show/546399 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/systemd?expand=0&rev=265
78 lines
3.5 KiB
Diff
78 lines
3.5 KiB
Diff
From 17be35b017aa39fad8aec98c81d4fade917096ec Mon Sep 17 00:00:00 2001
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From: Franck Bui <fbui@suse.com>
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Date: Mon, 27 Nov 2017 11:46:40 +0100
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Subject: [PATCH 1/1] compat-rules: get rid of scsi_id when generating compat
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symlinks for NVMe devices
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The SCSI translation layer for NVMe devices has been removed from the
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kernel since 4.13 (commit 3f7f25a910ed8988b2a87c1ca2bfee6b4fb83ac7),
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so drop scsi_id in favor of the sysfs interface to generate the
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name of the compat symlinks.
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Unfortunately we have to retrieve manually the model attribute
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because %s{} strips trailing whitespaces otherwise. Indeed scsi_id
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replaced them with a single '_' char due to the use of the
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'--replace-whitespace' option.
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[tblume: fixes bsc#1051465]
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---
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rules/61-persistent-storage-compat.rules | 34 ++++++++++++++++++++++++++++----
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1 file changed, 30 insertions(+), 4 deletions(-)
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diff --git a/rules/61-persistent-storage-compat.rules b/rules/61-persistent-storage-compat.rules
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index 82a38fac7..639dc1ee1 100644
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--- a/rules/61-persistent-storage-compat.rules
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+++ b/rules/61-persistent-storage-compat.rules
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@@ -16,6 +16,10 @@
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# doesn't rely on them and they could be disabled permanently.
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#
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# Thanks !
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+#
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+# Note: this rules file can rely on all ID_* variables (set by
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+# 60-persistent-storage.rule) but should not overwrite them, see
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+# bsc#1048679 for details.
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ACTION=="remove", GOTO="persistent_storage_end"
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@@ -49,11 +53,33 @@ ENV{COMPAT_SYMLINK_GENERATION}!="?*", ENV{COMPAT_SYMLINK_GENERATION}="1"
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#
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ENV{COMPAT_SYMLINK_GENERATION}!="1", GOTO="generation_2"
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-# NVMe links were introduced first via a SUSE specific commit
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+# NVMe symlinks were introduced first via a SUSE specific commit
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# (bsc#944132) and upstream gained support later but of course using a
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-# different scheme. Also note that ID_SERIAL is already used by the
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-# contemporary rules, see bsc#1048679 for details.
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-KERNEL=="nvme*", ENV{DEVTYPE}=="disk", ENV{ID_NVME_SERIAL_COMPAT}!="?*", PROGRAM="scsi_id --whitelisted --replace-whitespace -d $devnode", RESULT=="?*", ENV{ID_NVME_SERIAL_COMPAT}="$result"
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+# different scheme.
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+
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+# The SCSI translation layer for NVMe devices has been removed from
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+# the kernel since 4.13, therefore we switched from scsi_id to the
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+# sysfs interface to generate the name of the compat symlinks.
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+# Unfortunately we can't use %s{model} to retrieve the model string
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+# because udev strips any trailing whitespaces and some plateforms
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+# (QEMU does that) might append such chars. In those cases scsi_id was
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+# replacing them with a single trailing '_'. Therefore the currently
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+# code retrieves the model string manually making sure to preserve all
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+# characters so trailing whitespaces are still converted when the
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+# symlink is created.
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+
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+# KERNEL=="nvme*", ENV{DEVTYPE}=="disk", ENV{ID_NVME_SERIAL_COMPAT}!="?*", ATTRS{model}=="?*", ATTRS{serial}=="?*" \
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+# PROGRAM=="/bin/sh -c 'MODEL=\"%s{model}\"; echo \"${MODEL:0:16}\"'", ENV{ID_NVME_SERIAL_COMPAT}="SNVMe_%c%s{serial}"
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+
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+KERNEL=="nvme*", ENV{DEVTYPE}=="disk", ENV{ID_NVME_SERIAL_COMPAT}!="?*", ATTRS{model}=="?*", ATTRS{serial}=="?*" \
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+ PROGRAM=="/bin/sh -c ' \
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+ cd /sys/%p; \
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+ while ! [ -f model ]; do \
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+ cd ..; \
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+ [ $(pwd) = %S ] && exit 1; \
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+ done; \
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+ cut -c 1-16 model'", ENV{ID_NVME_SERIAL_COMPAT}="SNVMe_%c%s{serial}"
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+
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KERNEL=="nvme*", ENV{DEVTYPE}=="disk", ENV{ID_NVME_SERIAL_COMPAT}=="?*", SYMLINK+="disk/by-id/nvme-$env{ID_NVME_SERIAL_COMPAT}"
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KERNEL=="nvme*", ENV{DEVTYPE}=="partition", ENV{ID_NVME_SERIAL_COMPAT}=="?*", SYMLINK+="disk/by-id/nvme-$env{ID_NVME_SERIAL_COMPAT}-part%n"
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--
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2.14.2
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