[dm-devel] [PATCH 0/3] dm snapshot: Improve performance using a more fine-grained locking scheme

[Mike Snitzer]

On Mon, Feb 18 2019 at  9:37am -0500,
Mikulas Patocka <mpatocka at redhat.com> wrote:

> 
> 
> On Mon, 18 Feb 2019, Nikos Tsironis wrote:
> 
> > Hello,
> > 
> > This is a kind reminder for this patch set. I'm bumping this thread to
> > solicit your feedback. Please let me know what else I may need to do for
> > these patches to land in the upcoming merge window for 5.1.
> > 
> > Looking forward to your feedback,
> > 
> > Nikos
> 
> I don't know what to do with those patches.
> 
> The patches make it more complicated, so I can't really say if they are 
> correct or not.

As I mentioned to you before: please do the best you can reasoning
through (and even quantifying on your own) the performance reward these
patches provide.

Then we'll need to make a call on risk vs reward.

Nikos mentioned in another mail on Friday that this dm-snapshot patchset
is a prereq for more dm-snapshot changes he has.  Nikos, if you could
forecast what those additional changes to dm-snapshot are that could
help inform the review process for this initial patchset.

Thanks,
Mike