Currently architecture must implement atomic_fetch_add_unless(), with
common code providing atomic_add_unless(). Architectures must also
implement atmic64_add_unless() directly, with no corresponding
atomic64_fetch_add_unless().
This divergenece is unfortunate, and means that the APIs for
Currently architecture must implement atomic_fetch_add_unless(), with
common code providing atomic_add_unless(). Architectures must also
implement atmic64_add_unless() directly, with no corresponding
atomic64_fetch_add_unless().
This divergenece is unfortunate, and means that the APIs for
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