Re: [PATCH] mm: migrate: record the mlocked page status to remove unnecessary lru drain

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> >>
> >> IMHO, that seems too hacky to me. I still prefer to rely on the migration process of the mlcock pages.
> >
> > BTW, Yosry tried to address the overlap of field lru and mlock_count:
> > https://lore.kernel.org/lkml/20230618065719.1363271-1-yosryahmed@xxxxxxxxxx/
> > But the lore doesn't group all the patches.
>
> Thanks for the information. I'd like to review and test if this work can
> continue.

The motivation for this work was reviving the unevictable LRU for the
memcg recharging RFC series [1]. However, that series was heavily
criticized. I was not intending on following up on it.

If reworking the mlock_count is beneficial for other reasons, I am
happy to respin it if the work needed to make it mergeable is minimal.
Otherwise, I don't think I have the time to revisit (but feel free to
pick up the patches if you'd like).

[1]https://lore.kernel.org/lkml/20230720070825.992023-1-yosryahmed@xxxxxxxxxx/




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