Re: [PATCH] ovl: Allow changing default fsync_mode

[Yafang Shao]

On Wed, Jun 24, 2026 at 11:36 AM Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx> wrote:
>
>
>
> On 2026/6/24 11:28, Yafang Shao wrote:
> > On Wed, Jun 24, 2026 at 11:17 AM Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx> wrote:
> >>
> >> Hi,
> >>
> >> On 2026/6/24 10:30, Yafang Shao wrote:
> >>> On Wed, Jun 24, 2026 at 10:28 AM Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx> wrote:
> >>>>
> >>>>
> >>>>
> >>>> On 2026/6/24 10:09, Yafang Shao wrote:
> >>>>> On Tue, Jun 23, 2026 at 10:52 PM Amir Goldstein <amir73il@xxxxxxxxx> wrote:
> >>>>>>
> >>>>>> On Tue, Jun 23, 2026 at 3:47 PM Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx> wrote:
> >>>>
> >>>> ...
> >>>>
> >>>>>
> >>>>> Since the "volatile" option has been working fine for over a year
> >>>>> across our large fleet of Kubernetes production servers, I submitted
> >>>>> this change to upstream. In Kubernetes environments, there is no use
> >>>>> case for remounting the workdir to the same directory, so the volatile
> >>>>> file won't cause any issues — which is why the "volatile" setting has
> >>>>> been working well there.
> >>>> That is not an excuse to introduce such new incompatible behavior
> >>>> to the linux upstream starting only for your customized fleet and
> >>>> bother every single opensource user/application to adapt this
> >>>> behavior which uses overlayfs now.
> >>>>
> >>>> If you insist to work on a breaking change, please gather
> >>>> userspace feedback boardly first.
> >>>>
> >>>> And here I just say you and your employer are lucky since I
> >>>> know it's also risky even on the generic kubernate perspective.
> >>>> Please just maintain your livepatch downstream, thanks.
> >>>>
> >>>> No need to reply, and I won't reply this either, it's just
> >>>> waste of my time to explain a basic upstream principle again
> >>>> and again.
> >>>
> >>> I'll just go ahead and redirect you to /dev/null ;)
> >>
> >> The whole thread is:
> >> https://lore.kernel.org/linux-unionfs/20260623084337.54344-1-laoar.shao@xxxxxxxxx/T/#u
> >>
> >> Personally, I feel offensive due to Yafang's expression
> >> written above.  I keep maintain my replies in technical
> >> discussion, but the replies above already include the
> >> following words:
> >>
> >> "No wonder containerd is getting harder and harder to use ;)"
> >>
> >> "Please do your homework."
> >>
> >> "Again, pls do your homework."
> >>
> >> and the emotional texts `;)` make me feel uneasy over the
> >> time,
> >>
> >> especially the final words "I'll just go ahead and redirect
> >> you to /dev/null ;)"
> >>
> >> So I write an email as a public report to the CoC since I'm
> >> not sure how to proceed to comment the community patches
> >> because I could get offence as a result.
> >
> > I believe you could learn a thing or two from Amir about how to
> > comment on others' patches ;)
>
> ;) Please let me know why you commented:
>
> "No wonder containerd is getting harder and harder to use ;)"
>
> ;)

Because I find it harder to use than Docker ;)

-- 
Regards
Yafang