mm/damon/paddr: activate DAMOS_LRU_PRIO targets instead of marking accessed

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DAMOS_LRU_DEPRIOD directly deactivates the pages, while DAMOS_LRU_PRIO
calls folio_mark_accessed(), which does incremental activation.  The
incremental activation was assumed to be useful for making sure the pages
of the hot memory region are really hot.  After the introduction of
DAMOS_LRU_PRIO, the young page filter has added.  Users can use the young
page filter to make sure the page is eligible to be activated.  Meanwhile,
the asymmetric behavior of DAMOS_LRU_[DE]PRIO can confuse users.

Directly activate given pages for DAMOS_LRU_PRIO, to eliminate the
unnecessary incremental activation steps, and be symmetric with
DAMOS_LRU_DEPRIO for easier usages.

Link: https://lkml.kernel.org/r/20260113152717.70459-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam Howlett <liam.howlett@oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

...

This commit is contained in:

SeongJae Park 2026-01-13 07:27:09 -08:00 • committed by Andrew Morton

parent 5022134c1b

commit 80820e69fd

1 changed files with 8 additions and 10 deletions

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mm/damon/paddr.c

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