Re: [PATCH v2] 9p: fix i_size update race in getattr with writeback caching

From: Dominique Martinet

Date: Sun Feb 15 2026 - 04:22:12 EST


Christian Schoenebeck wrote on Wed, Feb 04, 2026 at 12:48:55PM +0100:
> > FWIW, I tested the initial approach I described and this seems to result in
> > no real performance improvements compared to not using any writeback
> > caching at all.
>
> Right, surprisingly I don't measure a performance penalty either.
>
> Dominique, suggestions how to proceed on this issue?

Thanks for the ping and sorry for lack of activity lately.

I've just pinged David on IRC (and will remind him monday if no news) as
I don't have enough opinion here..

I'd be tempted to agree with your initial review that this v2 should be
enough though, so unless he has any reason to disagree I'll pick it up
and send to Linus after rc1

--
Dominique Martinet | Asmadeus