Skip temp cryptsetup nodes in add_symlinks()
Skip temp cryptsetup nodes in add_symlinks()

Otherwise cryptsetup may do two events with the same
$MDEV and as we seriallize mdev, it may block process
resulting in 2 error messages about device being busy
before blkid finishes and cryptsetup recover.

(Observed since 3.13 kernel, 3.12 does not provide such results.)

slashbeast/mdev-like-a-boss