+ mm-damon-vaddr-support-pgidle_unset-probe-filter-type.patch added to mm-new branch

+ mm-damon-vaddr-support-pgidle_unset-probe-filter-type.patch added to mm-new branch

[Andrew Morton]

The patch titled
     Subject: mm/damon/vaddr: support pgidle_unset probe filter type
has been added to the -mm mm-new branch.  Its filename is
     mm-damon-vaddr-support-pgidle_unset-probe-filter-type.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-vaddr-support-pgidle_unset-probe-filter-type.patch

This patch will later appear in the mm-new branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

The mm-new branch of mm.git is not included in linux-next

If a few days of testing in mm-new is successful, the patch will me moved
into mm.git's mm-unstable branch, which is included in linux-next

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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

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and is updated there most days

------------------------------------------------------
From: SJ Park <sj@kernel.org>
Subject: mm/damon/vaddr: support pgidle_unset probe filter type
Date: Wed, 9 Sep 2026 07:04:07 -0700

DAMON virtual address space operation set (vaddr) does not support
pgidle_unset probe filter type.  Add the support.

Link: https://lore.kernel.org/20260909140408.104699-6-sj@kernel.org
Signed-off-by: SJ Park <sj@kernel.org>
Cc: Gutierrez Asier <gutierrez.asier@huawei-partners.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/damon/vaddr.c |   55 +++++++++++++++++++++++++++++++++++++++------
 1 file changed, 48 insertions(+), 7 deletions(-)

--- a/mm/damon/vaddr.c~mm-damon-vaddr-support-pgidle_unset-probe-filter-type
+++ a/mm/damon/vaddr.c
@@ -522,13 +522,49 @@ static void damon_va_prep_probes(struct
 	}
 }
 
-static bool damon_va_filter_pass(struct folio *folio, struct damon_probe *p)
+static bool damon_va_young_addr(struct folio *folio, pte_t *pte, pmd_t *pmd,
+		struct mm_struct *mm, unsigned long addr)
+{
+	bool young = false;
+
+	if (pte)
+		young = pte_young(*pte);
+	else if (pmd)
+		young = pmd_young(*pmd);
+	young = young || !folio_test_idle(folio) ||
+		mmu_notifier_test_young(mm, addr);
+	return young;
+}
+
+static bool damon_va_filter_match(struct damon_filter *filter,
+		struct folio *folio, pte_t *pte, pmd_t *pmd,
+		struct mm_struct *mm, unsigned long addr)
+{
+	bool matched = false;
+
+	switch (filter->type) {
+	case DAMON_FILTER_TYPE_PGIDLE_UNSET:
+		if (!folio)
+			matched = false;
+		else
+			matched = damon_va_young_addr(folio, pte, pmd, mm,
+					addr);
+		break;
+	default:
+		return damon_ops_filter_match(filter, folio);
+	}
+	return matched == filter->matching;
+}
+
+static bool damon_va_filter_pass(struct folio *folio, struct damon_probe *p,
+		pte_t *pte, pmd_t *pmd, struct mm_struct *mm,
+		unsigned long addr)
 {
 	struct damon_filter *f;
 	bool pass = true;
 
 	damon_for_each_filter(f, p) {
-		if (damon_ops_filter_match(f, folio)) {
+		if (damon_va_filter_match(f, folio, pte, pmd, mm, addr)) {
 			pass = f->allow;
 			break;
 		}
@@ -543,13 +579,15 @@ struct damon_va_probe_walk_private {
 };
 
 static void damon_va_probe_folio(struct damon_ctx *ctx,
-		struct damon_region *r, struct folio *folio)
+		struct damon_region *r, struct folio *folio,
+		pte_t *pte, pmd_t *pmd, struct mm_struct *mm)
 {
 	struct damon_probe *probe;
 	int i = 0;
 
 	damon_for_each_probe(probe, ctx) {
-		if (damon_va_filter_pass(folio, probe))
+		if (damon_va_filter_pass(folio, probe, pte, pmd, mm,
+					r->sampling_addr))
 			r->probe_hits[i]++;
 		i++;
 	}
@@ -574,7 +612,8 @@ static int damon_va_probe_pmd_entry(pmd_
 		folio = vm_normal_folio_pmd(walk->vma, addr, pmde);
 		if (!folio)
 			goto huge_out;
-		damon_va_probe_folio(priv->ctx, priv->r, folio);
+		damon_va_probe_folio(priv->ctx, priv->r, folio, NULL, &pmde,
+				walk->vma->vm_mm);
 
 huge_out:
 		spin_unlock(ptl);
@@ -591,7 +630,8 @@ huge_out:
 	folio = vm_normal_folio(walk->vma, addr, ptent);
 	if (!folio)
 		goto out;
-	damon_va_probe_folio(priv->ctx, priv->r, folio);
+	damon_va_probe_folio(priv->ctx, priv->r, folio, &ptent, NULL,
+			walk->vma->vm_mm);
 
 out:
 	pte_unmap_unlock(pte, ptl);
@@ -615,7 +655,8 @@ static int damon_va_probe_hugetlb_entry(
 
 	folio = pfn_folio(pte_pfn(entry));
 	folio_get(folio);
-	damon_va_probe_folio(priv->ctx, priv->r, folio);
+	damon_va_probe_folio(priv->ctx, priv->r, folio, &entry, NULL,
+			walk->vma->vm_mm);
 	folio_put(folio);
 
 out:
_

Patches currently in -mm which might be from sj@kernel.org are

mm-damon-vaddr-avoid-hw-driven-pte-updates-during-damon_hugetlb_mkold.patch
mm-damon-core-skip-applying-scheme-if-region-split-for-quota-fails.patch
mm-damon-paddr-respect-folio-end-for-damos_stat.patch
mm-damon-paddr-respect-folio-end-for-damos-actions-except-stat.patch
mm-damon-vaddr-respect-folio-end-for-damos_stat.patch
mm-damon-vaddr-respect-folio-end-for-damos_migrate_hotcold.patch
mm-damon-core-handle-extreme-memory-state-in-damon_get_node_mem_bp.patch
mm-damon-core-handle-extreme-memory-state-in-get_node_memcg_used_bp.patch
mm-damon-core-handle-extreme-memory-state-in-get_in_active_mem_bp.patch
mm-damon-core-introduce-damon_filter_type_pgidle_unset.patch
mm-damon-paddr-support-pgidle_unset-probe-filter-type.patch
mm-damon-sysfs-support-pgidle_unset-probe-filter-type.patch
docs-mm-damon-design-document-pgidle_unset-probe-filter-type.patch
mm-damon-core-introduce-damon_prep-struct.patch
mm-damon-core-commit-preps.patch
mm-damon-core-introduce-damon_operations-prep_probes.patch
mm-damon-paddr-support-damon_prep.patch
mm-damon-sysfs-implement-preps-directory.patch
mm-damon-sysfs-implement-preps-nr_preps-file.patch
mm-damon-sysfs-create-directories-for-nr_preps-writes.patch
mm-damon-sysfs-implement-prep_action-file.patch
mm-damon-sysfs-pass-preps-to-damon-core.patch
selftests-damon-sysfssh-test-probe-prep-sysfs-files.patch
docs-mm-damon-design-document-probe-preps.patch
docs-admin-guide-mm-damon-usage-document-probe-preps-sysfs-files.patch
docs-abi-damon-document-probe-prep-sysfs-files.patch
mm-damon-tests-core-kunit-test-committing-psi-goal-to-psi-goal.patch
mm-damon-core-handle-uninitialized-damos_quota_goal-last_psi_total.patch
mm-damon-core-copy-nid-for-eligible_mem_bp-damos-quota-goal-commit.patch
mm-damon-sysfs-set-next-refresh-jiffies-per-sysfs-context.patch
mm-damon-tests-core-kunit-test-damon_commit_filter.patch
mm-damon-tests-core-kunit-add-damon_commit_probes-test.patch
selftests-damon-_damon_sysfs-implement-damonprobes.patch
selftests-damon-drgn_dump_damon_status-dump-probes.patch
selftests-damon-sysfspy-extend-commit-assertion-function-for-probes.patch
selftests-damon-sysfspy-test-damon-probes.patch
mm-damon-core-use-damon_nr_samples_per_aggr-for-max-merge-threshold.patch
mm-damon-core-remove-debug-messages.patch
mm-damon-core-remove-debug-messages-fix.patch
mm-damon-vaddr-remove-a-debug-message.patch
mm-damon-core-validate-number-of-probes-in-valid_probe_params.patch
mm-damon-sysfs-remove-probes-number-validation.patch
mm-damon-tests-core-kunit-extend-set_regions-test-for-error-case.patch
mm-damon-tests-core-kunit-test-=0-size-damon_set_regions-inputs.patch
mm-damon-tests-core-kunit-test-overlapping-ranges-for-set_regions.patch
mm-damon-tests-core-kunit-test-damon_nr_samples_per_aggr.patch
selftests-damon-sysfssh-test-hugepage_mem_bp-quota-goal.patch
docs-mm-damon-maintainer-profile-update-ai-review-for-sashiko-replies.patch
docs-abi-damon-recommend-subsystem-doc-instead-of-admin-guide.patch
mm-damon-core-error-damos_commit_quota_goal-for-zero-target_value.patch
revert-mm-damon-lru_sort-error-out-for-10000-active_mem_bp.patch
revert-samples-damon-mtier-error-out-for-zero-quota-goal-target-values.patch
mm-damon-core-handle-null-ctx-parameter-in-damon_call.patch
mm-damon-core-set-ctx-call_controls_obsolete-in-damon_new_ctx.patch
mm-damon-reclaim-remove-unnecessary-damon_call-param-validation.patch
mm-damon-lru_sort-remove-unnecessary-damon_call-param-validation.patch
mm-damon-vaddr-support-prep_probes.patch
mm-damon-paddr-move-probe-filter-handling-to-ops-common.patch
mm-damon-vaddr-support-apply_probe.patch
mm-damon-vaddr-extend-apply_probes-for-hugetlb.patch
mm-damon-vaddr-support-pgidle_unset-probe-filter-type.patch