cmds/installd/otapreopt.rc

# When /data is available, look for A/B artifacts for the current slot and move them
# into the dalvik-cache (relabeling them).
on post-fs-data
    exec - root -- /system/bin/otapreopt_slot
    # The dalvik-cache was not moved itself, so as to restrict the rights of otapreopt_slot.
    # But now the relabeling is annoying as there is no force option available here. So
    # explicitly list all the ISAs we know.
    restorecon_recursive /data/dalvik-cache/arm /data/dalvik-cache/arm64 /data/dalvik-cache/mips /data/dalvik-cache/mips64 /data/dalvik-cache/x86 /data/dalvik-cache/x86_64