Re: [PATCH 00/15] stackdepot: allow evicting stack traces

[Kuan-Ying Lee (李冠穎)]

On Mon, 2023-09-04 at 20:45 +0200, Andrey Konovalov wrote:
> On Wed, Aug 30, 2023 at 9:46 AM Vlastimil Babka <vbabka@xxxxxxx>
> wrote:
> > 
> > I wonder if there's also another thing to consider for the future:
> > 
> > 3. With the number of stackdepot users increasing, each having
> > their
> > distinct set of stacks from others, would it make sense to create
> > separate
> > "storage instance" for each user instead of putting everything in a
> > single
> > shared one?
> 
> This shouldn't be hard to implement. However, do you see any
> particular use cases for this?
> 
> One thing that comes to mind is that the users will then be able to
> create/destroy stack depot instances when required. But I don't know
> if any of the users need this: so far they all seem to require stack
> depot throughout the whole lifetime of the system.
> 
Maybe we can use evition in page_owner and slub_debug
(SLAB_STORE_USER).

After we update page_owner->handle, we could evict the previous
handle?

> > In any case, evicting support is a good development, thanks!
> 
> Thank you!
>