Re: [PATCH v6 3/3] mm: vmscan: refactor updating current->reclaim_state

From: Yosry Ahmed
Date: Thu Apr 13 2023 - 07:30:27 EST


On Thu, Apr 13, 2023 at 4:21 AM David Hildenbrand <david@xxxxxxxxxx> wrote:
>
> On 13.04.23 12:40, Yosry Ahmed wrote:
> > During reclaim, we keep track of pages reclaimed from other means than
> > LRU-based reclaim through scan_control->reclaim_state->reclaimed_slab,
> > which we stash a pointer to in current task_struct.
> >
> > However, we keep track of more than just reclaimed slab pages through
> > this. We also use it for clean file pages dropped through pruned inodes,
> > and xfs buffer pages freed. Rename reclaimed_slab to reclaimed, and add
>
> Would "reclaimed_non_lru" be more expressive? Then,
>
> mm_account_reclaimed_pages() -> mm_account_non_lru_reclaimed_pages()
>
>
> Apart from that LGTM.

Thanks!

I suck at naming things. If you think "reclaimed_non_lru" is better,
then we can do that. FWIW mm_account_reclaimed_pages() was taken from
a suggestion from Dave Chinner. My initial version had a terrible
name: report_freed_pages(), so I am happy with whatever you see fit.

Should I re-spin for this or can we change it in place?

>
> --
> Thanks,
>
> David / dhildenb
>