Re: [PATCH V2 2/2] Documentation: filesystems: introduce proc/slabinfo to users

[zhang fangzheng]

On Mon, Feb 19, 2024 at 12:24 PM Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote:
>
> On Mon, Feb 19, 2024 at 11:19:11AM +0800, Fangzheng Zhang wrote:
> > +Note, <slabreclaim> comes from the collected results in the file
> > +/sys/kernel/slab/$cache/reclaim_account. Next, we will mark /proc/slabinfo
> > +as deprecated and recommend the use of either sysfs directly or
> > +use of the "slabinfo" tool that we have been providing in linux/tools/mm.
>
> Wait, so you're going to all of the trouble of changing the format of
> slabinfo (with the associated costs of updating every tool that currently
> parses it), only to recommend that we stop using it and start using
> tools/mm/slabinfo instead?
>

The initial purpose was to obtain the type of each slab through
a simple command 'cat proc/slabinfo'. So here, my intention is not to
update all slabinfo-related tools for the time being, but to modify
the version number of proc/slabinfo and further display the results
of using the command.

> How about we simply do nothing?

The note here means what changes will occur after
we modify the version number of proc/slabinfo to 2.2.
As for the replacement of tools/mm/slabinfo (that inspired
by Christoph’s suggestions), it will be implemented in the next version
or even the later version.

Thanks!