On Mon, May 30, 2022 at 02:17:11PM -0700, Andrew Morton wrote: > On Mon, 30 May 2022 15:49:08 +0800 Muchun Song <songmuchun@xxxxxxxxxxxxx> wrote: > > > This version is rebased on v5.18. > > Not a great choice of base, really. mm-stable or mm-unstable or > linux-next or even linus-of-the-day are all much more up to date. > > Although the memcg reviewer tags are pretty thin, I was going to give > it a run. But after fixing a bunch of conflicts I got about halfway > through then gave up on a big snarl in get_obj_cgroup_from_current(). > > > RFC v1: https://lore.kernel.org/all/20210330101531.82752-1-songmuchun@xxxxxxxxxxxxx/ > > Surprising, that was over a year ago. Why has is taken so long? It's partially my fault: I was thinking (and to some extent still are) that using objcg is not the best choice long-term and was pushing on the idea to used per-memcg lru vectors as intermediate objects instead. But it looks like I underestimated the complexity and a potential overhead of this solution. The objcg-based approach can solve the problem right now and it shouldn't bring any long-term issues. So I asked Muchun to revive the patchset. Thanks!
