On Tue, Jan 10, 2023 at 20:58:01 +0000, Alex Bennée wrote:
> Emilio Cota <c...@braap.org> writes:
(snip)
> > +static inline void qht_do_if_first_in_stripe(const struct qht_map *map,
> > + struct qht_bucket *b,
> > + void (*func)(QemuSpin *spin))
> > +{
> > +#ifdef CONFIG_TSAN
> > + unsigned long bucket_idx = b - map->buckets;
> > + bool is_first_in_stripe = (bucket_idx >> QHT_TSAN_BUCKET_LOCKS_BITS)
> > == 0;
> > + if (is_first_in_stripe) {
> > + unsigned long lock_idx = bucket_idx & (QHT_TSAN_BUCKET_LOCKS - 1);
> > + func(&map->tsan_bucket_locks[lock_idx]);
>
> Hmm I ran into an issue with:
>
> ../util/qht.c:286:10: error: incompatible pointer types passing 'const
> struct qht_tsan_lock *' to parameter of type 'QemuSpin *' (aka 'struct
> QemuSpin *') [-Werror,-Wincompatible-pointer-types]
Gaah, sorry. I didn't notice this because of unrelated noise due
to having to configure with --disable-werror. Fixed now by removing
a bunch of const's and also using .lock.
> > +static inline void qht_bucket_lock_destroy(const struct qht_map *map,
> > + struct qht_bucket *b)
> > +{
> > + qht_do_if_first_in_stripe(map, b, qemu_spin_destroy);
> > +}
>
> Who is meant to be calling this?
Should have been removed in v2; fixed now.
I've uploaded the v3 series to https://github.com/cota/qemu/tree/tsan-v3
Please let me know if you want me to also mail it to the list.
Thanks,
Emilio
