target-s390: Perform COMPARE AND SWAP inline
Still no proper solution for CONFIG_USER_ONLY, but the system
version is significantly better.
Signed-off-by: NRichard Henderson <rth@twiddle.net>
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Still no proper solution for CONFIG_USER_ONLY, but the system
version is significantly better.
Signed-off-by: NRichard Henderson <rth@twiddle.net>