On Tue, Oct 05, 2021 at 12:58:58PM +0200, Marco Elver wrote:
> @@ -59,6 +60,7 @@ atomic_add(int i, atomic_t *v)
> static __always_inline int
> atomic_add_return(int i, atomic_t *v)
> {
> + kcsan_mb();
> instrument_atomic_read_write(v, sizeof(*v));
> return arch_atomic_add_return(i, v);
> }
This and others,.. is this actually correct? Should that not be
something like:
kscan_mb();
instrument_atomic_read_write(...);
ret = arch_atomic_add_return(i, v);
kcsan_mb();
return ret;
?
