mm/damon/vaddr: apply filters in migrate_{hot/cold}

mm/damon/vaddr: apply filters in migrate_{hot/cold}

The paddr versions of migrate_{hot/cold} filter out folios from migration
based on the scheme's filters.  This patch does the same for the vaddr
versions of those schemes.

The filtering code is mostly the same for the paddr and vaddr versions.
The exception is the young filter.  paddr determines if a page is young by
doing a folio rmap walk to find the page table entries corresponding to
the folio.  However, vaddr schemes have easier access to the page tables,
so we add some logic to avoid the extra work.

Link: https://lkml.kernel.org/r/20250709005952.17776-14-bijan311@gmail.com
Co-developed-by: Ravi Shankar Jonnalagadda <ravis.opensrc@micron.com>
Signed-off-by: Ravi Shankar Jonnalagadda <ravis.opensrc@micron.com>
Signed-off-by: Bijan Tabatabai <bijantabatab@micron.com>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>