linux/scripts/atomic/fallbacks/try_cmpxchg
Mark Rutland f3e615b4db locking/atomic: remove ARCH_ATOMIC remanants
Now that gen-atomic-fallback.sh is only used to generate the arch_*
fallbacks, we don't need to also generate the non-arch_* forms, and can
removethe infrastructure this needed.

There is no change to any of the generated headers as a result of this
patch.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20210713105253.7615-3-mark.rutland@arm.com
2021-07-16 18:46:44 +02:00

12 lines
250 B
Plaintext
Executable File

cat <<EOF
static __always_inline bool
arch_${atomic}_try_cmpxchg${order}(${atomic}_t *v, ${int} *old, ${int} new)
{
${int} r, o = *old;
r = arch_${atomic}_cmpxchg${order}(v, o, new);
if (unlikely(r != o))
*old = r;
return likely(r == o);
}
EOF