Re: [PATCH 05/12] block: remove AioContext locking

[Stefan Hajnoczi]

On Mon, Dec 04, 2023 at 03:33:57PM +0100, Kevin Wolf wrote:
> Am 29.11.2023 um 20:55 hat Stefan Hajnoczi geschrieben:
> > This is the big patch that removes
> > aio_context_acquire()/aio_context_release() from the block layer and
> > affected block layer users.
> > 
> > There isn't a clean way to split this patch and the reviewers are likely
> > the same group of people, so I decided to do it in one patch.
> > 
> > Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
> 
> > @@ -7585,29 +7433,12 @@ void coroutine_fn bdrv_co_leave(BlockDriverState 
> > *bs, AioContext *old_ctx)
> >  
> >  void coroutine_fn bdrv_co_lock(BlockDriverState *bs)
> >  {
> > -    AioContext *ctx = bdrv_get_aio_context(bs);
> > -
> > -    /* In the main thread, bs->aio_context won't change concurrently */
> > -    assert(qemu_get_current_aio_context() == qemu_get_aio_context());
> > -
> > -    /*
> > -     * We're in coroutine context, so we already hold the lock of the main
> > -     * loop AioContext. Don't lock it twice to avoid deadlocks.
> > -     */
> > -    assert(qemu_in_coroutine());
> > -    if (ctx != qemu_get_aio_context()) {
> > -        aio_context_acquire(ctx);
> > -    }
> > +    /* TODO removed in next patch */
> >  }
> 
> It's still there at the end of the series.

Will fix in v2. Thanks!

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