Re: [PATCH v3 3/6] mm/vmscan: activate swap-backed executable folios after first usage

From: ying.huang@xxxxxxxxx
Date: Mon Apr 25 2022 - 22:02:29 EST

On Mon, 2022-04-25 at 14:07 -0700, Andrew Morton wrote:
> On Mon, 25 Apr 2022 19:12:29 +0800 Miaohe Lin <linmiaohe@xxxxxxxxxx> wrote:
> > We should activate swap-backed executable folios (e.g. tmpfs) after first
> > usage so that executable code gets yet better chance to stay in memory.
> Does this not erase the intended effect of Joonsoo's b518154e59a
> ("mm/vmscan: protect the workingset on anonymous LRU")?

I don't think so. This is only for executable folios (vm_flags &
VM_EXEC). The behavior for all other anonymous pages are not affected.

Best Regards,
Huang, Ying