Re: [PATCH v2] block: End quiescent sections when a BDS is deleted

[Greg Kurz <groug@kaod.org>]

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On Tue, 27 Oct 2020 13:54:04 +0000
Stefan Hajnoczi <stefanha@redhat.com> wrote:

> On Fri, Oct 23, 2020 at 05:01:10PM +0200, Greg Kurz wrote:
> > +/**
> > + * End all quiescent sections started by bdrv_drain_all_begin(). This is
> > + * only needed when deleting a BDS before bdrv_drain_all_end() is called.
> > + */
> > +void bdrv_drain_all_end_quiesce(BlockDriverState *bs);
> 
> This function is only called from block.c. Can it be moved to the
> private block_int.h header?
> 

Ha, I wasn't aware of block_int.h... It seems to be a very good idea.

> The code is not clear on whether bdrv_drain_all_end_quiesce() is an API
> that others can use or an internal helper function that must only be
> called by bdrv_close(). I came to the conclusion that the latter is true
> after reviewing the patch.
> 

Yes it is.

> Please update the bdrv_drain_all_end_quiesce() doc comment to clarify
> that this function is an internal helper for bdrv_close() - no one else
> needs to worry about it.

I'll do that.

Thanks for the suggestions Stefan.

Cheers,

--
Greg

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