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udev: Handle PTP device symlink properly on udev action 'change'

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PTP device symlink creation rules are currently executed only when the
udev action is 'add'. If a user reloads the rules and runs the udevadm
trigger command to reapply changes, the symlink may be deleted, which
can prevent the chronyd service from restarting properly.

Signed-off-by: Chengen Du <chengen.du@canonical.com>
This commit is contained in:
Chengen Du 2024-08-12 11:41:52 +08:00 committed by Yu Watanabe
parent 6ddf879ce8
commit 6bd12be3fa
1 changed files with 3 additions and 3 deletions
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6
rules.d/50-udev-default.rules.in
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@ -30,6 +30,9 @@ SUBSYSTEM=="pci|usb|platform", IMPORT{builtin}="path_id"
SUBSYSTEM=="net", IMPORT{builtin}="net_driver"
SUBSYSTEM=="ptp", ATTR{clock_name}=="KVM virtual PTP", SYMLINK+="ptp_kvm"
SUBSYSTEM=="ptp", ATTR{clock_name}=="hyperv", SYMLINK+="ptp_hyperv"
ACTION!="add", GOTO="default_end"
SUBSYSTEM=="tty", KERNEL=="ptmx", GROUP="tty", MODE="0666"
@ -116,7 +119,4 @@ KERNEL=="vhost-net", GROUP="kvm", MODE="{{DEV_KVM_MODE}}", OPTIONS+="static_node
KERNEL=="udmabuf", GROUP="kvm"
SUBSYSTEM=="ptp", ATTR{clock_name}=="KVM virtual PTP", SYMLINK+="ptp_kvm"
SUBSYSTEM=="ptp", ATTR{clock_name}=="hyperv", SYMLINK+="ptp_hyperv"
LABEL="default_end"