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SubjectRe: [PATCH 00/23] per device dirty throttling -v8

* Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:

> > you try to put the blame into distribution makers' shoes but in
> > reality, had the kernel stepped forward with a neat .config option
> > sooner (combined with a neat boot option as well to turn it off),
> > we'd have had noatime systems 10 years ago. A new entry into
> > relnotes and done. It's
>
> Sorry Ingo, having been in the distribution business for over ten
> years I have to disagree. Kernel options that magically totally change
> the kernel API and behaviour are exactly what a vendor does *NOT* want
> to have.

it's default off of course. A distro can turn it on or off.

> > Distro makers did not dare to do this sooner because some kernel
> > developers came forward with these mostly bogus arguments ... The
> > impact of atime is far better understood by the kernel community, so
> > it is the responsibility of _us_ to signal such things towards
> > distributors, not the other way around.
>
> You are trying to put a bogus divide between kernel community and
> developer community. Yet you know perfectly well that a large part of
> the kernel community yourself included work for distribution vendors
> and are actively building the distribution kernels.

i've periodically pushed for a noatime distro kernel for like ... 5-10
years and last time this argument came up [i brought it up 6 months ago]
most of the distro kernel developer actually recommended using noatime,
but it took only 1-2 kernel developers to come out with the
'compatibility' and 'compliance' boogeyman to scare the distro userspace
people away from changing /etc/fstab.

so yes, things like this needs a clear message from the kernel folks,
and a kernel option for that is a pretty good way of doing it.

Ingo
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