linux-stable/scripts/atomic/fallbacks/inc_unless_negative
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

14 lines
249 B
Text
Executable file

cat <<EOF
static __always_inline bool
arch_${atomic}_inc_unless_negative(${atomic}_t *v)
{
${int} c = arch_${atomic}_read(v);
do {
if (unlikely(c < 0))
return false;
} while (!arch_${atomic}_try_cmpxchg(v, &c, c + 1));
return true;
}
EOF