On 3/8/21 4:17 PM, Yang Shi wrote:

quoted

Reclaim anonymous pages if a migration path is available now that
demotion provides a non-swap recourse for reclaiming anon pages.

Note that this check is subtly different from the
anon_should_be_aged() checks.  This mechanism checks whether a
specific page in a specific context *can* actually be reclaimed, given
current swap space and cgroup limits

anon_should_be_aged() is a much simpler and more prelimiary check

Just a typo, s/prelimiary/preliminary

Got it.

Thanks for the continued review, and the review tags!  I'll hopefully
get a new version of this out the door next week.