Commit 75a98ed6 authored by Heiko Carstens's avatar Heiko Carstens
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s390/preempt: Use arch_try_cmpxchg() instead of __atomic_cmpxchg() 



Use arch_try_cmpxchg() instead of __atomic_cmpxchg() in
preempt_count_set() to generate similar or better code,
depending in compiler features.

Reviewed-by: default avatarJuergen Christ <jchrist@linux.ibm.com>
Signed-off-by: default avatarHeiko Carstens <hca@linux.ibm.com>
parent 5ba865ad
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