Re: [Qemu-devel] [RFC PATCH 15/16] qcow2: Cancel COW when overwritten

[Paolo Bonzini]

Il 18/09/2012 13:40, Kevin Wolf ha scritto:
> +    qemu_co_mutex_unlock(&s->lock);
> +    qemu_co_rwlock_wrlock(&m->l2_writeback_lock);

Can anybody else take the lock as reader again at this point?  If not, I
wonder if this is more clear if you write it as a CoQueue.

Paolo

> +    has_wr_lock = true;
> +    qemu_co_mutex_lock(&s->lock);