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

[Kevin Wolf]

Am 27.10.2020 um 16:24 hat Greg Kurz geschrieben:
> 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.

I already sent a pull request, so if you're going to change something,
please make it a follow-up patch rather than a new patch version.

Kevin

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