Re: [Qemu-devel] [PATCH v6 22/25] replay: add BH oneshot event for block layer

[Pavel Dovgalyuk]

> From: Paolo Bonzini [mailto:address@hidden
> On 12/09/2018 10:19, Pavel Dovgalyuk wrote:
> > + uint64_t id = replay_get_current_step();
> > + replay_add_event(REPLAY_ASYNC_EVENT_BH_ONESHOT, cb, opaque, id);
> 
> Why does it need an id, while REPLAY_ASYNC_EVENT_BH does not?

Because _oneshot() function takes only context and callback,
and BH object is created inside that function.
Therefore to use the normal bh scheduling events we have to refactor
block code - add bh creation, scheduling, and freeing.

Pavel Dovgalyuk