s390/cmpxchg,percpu: implement cmpxchg_double()
Signed-off-by:Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com>
parent
ba6f5c2a
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Signed-off-by:Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com>