Re: Sysfs one-value-per-file (was Re: [PATCH] vmstat: don't auto expand the sysfs files)

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On Thu, 28 Dec 2023, Pasha Tatashin wrote:

> > > But for existing files and conventions, I think we should settle it as
> > > "keep doing what you've been doing for 13+ years" and don't force this
> > > argument every time a kernel developer wants to just add one more stat.
> >
> > Absolutely.  Let's do what makes most sense.  For new things, one value
> > per file.  For stats which logically group with other existing stats,
> > do whatever the existing other stats are currently doing.
> 
> The intent of "[PATCH] vmstat: don't auto expand the sysfs files" is
> to do exactly this: keep the current fields in
> /sys/devices/system/node/node*/vmstat as-is, but prevent future fields
> added to node_stat, numa_stat, zone_stat from showing in vmstat.
> 

This is the opposite of what Andrew and I wrote above.  There should be no 
need to start preventing future stats from being grouped together in 
vmstat if it logically makes sense.

NAK.




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