Re: [RFC PATCH 1/5] slub: Introduce on_partial()

Chengming Zhou
2023-10-18T07:37:45Z

On 2023/10/17 23:54, Matthew Wilcox wrote:
> On Tue, Oct 17, 2023 at 03:44:35PM +0000, chengming.zhou@linux.dev wrote:
>> We change slab->__unused to slab->flags to use it as SLUB_FLAGS, which
>> now only include SF_NODE_PARTIAL flag. It indicates whether or not the
>> slab is on node partial list.
>
> This is an unnecessarily complex solution. As with the pfmemalloc bit,
> we can reuse the folio flags for a few flags. I would recommend the
> PG_workingset bit for this purpose.
>

Yeah, this is better indeed. Thanks for your suggestion!