On 2023/10/17 23:54, Matthew Wilcox wrote: > On Tue, Oct 17, 2023 at 03:44:35PM +0000, chengming.zhou@xxxxxxxxx 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!
