Luca Boccassi
c419b6f0cf
The symlink /dev/mapper/dm_name is created by udev after a mapper device is set up. So libdevmapper/libcrypsetup might tell us that a verity device exists, but the symlink we use as the source for the mount operation might not be there yet. Instead of falling back to a new unique device set up, wait for the udev event matching on the expected devlink for at least 100ms (after which the benefits of sharing a device in terms of setup time start to disappear - on my production machines, opening a new verity device seems to take between 150ms and 300ms)
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