The patch titled
Subject: mm/damon/paddr: report filter-passed bytes back for normal actions
has been added to the -mm mm-unstable branch. Its filename is
mm-damon-paddr-report-filter-passed-bytes-back-for-normal-actions.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-paddr-report-filter-passed-bytes-back-for-normal-actions.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: mm/damon/paddr: report filter-passed bytes back for normal actions
Date: Mon, 6 Jan 2025 11:33:50 -0800
damon_operations->apply_scheme() implementations are requested to report
back how many bytes of the given region has passed DAMOS filter. 'paddr'
operations set implementation supports some of region-internal DAMOS
filter handling for normal DAMOS actions except DAMOS_STAT action. But,
those are not respecting the request. Report the region-internal DAMOS
filter-passed bytes back for the actions.
Link: https://lkml.kernel.org/r/20250106193401.109161-6-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/damon/paddr.c | 33 ++++++++++++++++++++++-----------
1 file changed, 22 insertions(+), 11 deletions(-)
--- a/mm/damon/paddr.c~mm-damon-paddr-report-filter-passed-bytes-back-for-normal-actions
+++ a/mm/damon/paddr.c
@@ -243,7 +243,8 @@ static bool damos_pa_filter_out(struct d
return false;
}
-static unsigned long damon_pa_pageout(struct damon_region *r, struct damos *s)
+static unsigned long damon_pa_pageout(struct damon_region *r, struct damos *s,
+ unsigned long *sz_filter_passed)
{
unsigned long addr, applied;
LIST_HEAD(folio_list);
@@ -272,6 +273,8 @@ static unsigned long damon_pa_pageout(st
if (damos_pa_filter_out(s, folio))
goto put_folio;
+ else
+ *sz_filter_passed += folio_size(folio);
folio_clear_referenced(folio);
folio_test_clear_young(folio);
@@ -292,7 +295,8 @@ put_folio:
}
static inline unsigned long damon_pa_mark_accessed_or_deactivate(
- struct damon_region *r, struct damos *s, bool mark_accessed)
+ struct damon_region *r, struct damos *s, bool mark_accessed,
+ unsigned long *sz_filter_passed)
{
unsigned long addr, applied = 0;
@@ -304,6 +308,8 @@ static inline unsigned long damon_pa_mar
if (damos_pa_filter_out(s, folio))
goto put_folio;
+ else
+ *sz_filter_passed += folio_size(folio);
if (mark_accessed)
folio_mark_accessed(folio);
@@ -317,15 +323,17 @@ put_folio:
}
static unsigned long damon_pa_mark_accessed(struct damon_region *r,
- struct damos *s)
+ struct damos *s, unsigned long *sz_filter_passed)
{
- return damon_pa_mark_accessed_or_deactivate(r, s, true);
+ return damon_pa_mark_accessed_or_deactivate(r, s, true,
+ sz_filter_passed);
}
static unsigned long damon_pa_deactivate_pages(struct damon_region *r,
- struct damos *s)
+ struct damos *s, unsigned long *sz_filter_passed)
{
- return damon_pa_mark_accessed_or_deactivate(r, s, false);
+ return damon_pa_mark_accessed_or_deactivate(r, s, false,
+ sz_filter_passed);
}
static unsigned int __damon_pa_migrate_folio_list(
@@ -449,7 +457,8 @@ static unsigned long damon_pa_migrate_pa
return nr_migrated;
}
-static unsigned long damon_pa_migrate(struct damon_region *r, struct damos *s)
+static unsigned long damon_pa_migrate(struct damon_region *r, struct damos *s,
+ unsigned long *sz_filter_passed)
{
unsigned long addr, applied;
LIST_HEAD(folio_list);
@@ -462,6 +471,8 @@ static unsigned long damon_pa_migrate(st
if (damos_pa_filter_out(s, folio))
goto put_folio;
+ else
+ *sz_filter_passed += folio_size(folio);
if (!folio_isolate_lru(folio))
goto put_folio;
@@ -481,14 +492,14 @@ static unsigned long damon_pa_apply_sche
{
switch (scheme->action) {
case DAMOS_PAGEOUT:
- return damon_pa_pageout(r, scheme);
+ return damon_pa_pageout(r, scheme, sz_filter_passed);
case DAMOS_LRU_PRIO:
- return damon_pa_mark_accessed(r, scheme);
+ return damon_pa_mark_accessed(r, scheme, sz_filter_passed);
case DAMOS_LRU_DEPRIO:
- return damon_pa_deactivate_pages(r, scheme);
+ return damon_pa_deactivate_pages(r, scheme, sz_filter_passed);
case DAMOS_MIGRATE_HOT:
case DAMOS_MIGRATE_COLD:
- return damon_pa_migrate(r, scheme);
+ return damon_pa_migrate(r, scheme, sz_filter_passed);
case DAMOS_STAT:
break;
default:
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
samples-add-a-skeleton-of-a-sample-damon-module-for-working-set-size-estimation.patch
samples-damon-wsse-start-and-stop-damon-as-the-user-requests.patch
samples-damon-wsse-implement-working-set-size-estimation-and-logging.patch
samples-damon-introduce-a-skeleton-of-a-smaple-damon-module-for-proactive-reclamation.patch
samples-damon-prcl-implement-schemes-setup.patch
replace-free-hugepage-folios-after-migration-fix-2.patch
docs-admin-guide-mm-damon-usage-remove-damon-debugfs-interface-documentation.patch
docs-mm-damon-design-update-for-removal-of-damon-debugfs-interface.patch
selftests-damon-config-remove-configs-for-damon-debugfs-interface-selftests.patch
selftests-damon-remove-tests-for-damon-debugfs-interface.patch
kunit-configs-remove-configs-for-damon-debugfs-interface-tests.patch
mm-damon-remove-damon-debugfs-interface-kunit-tests.patch
mm-damon-remove-damon-debugfs-interface.patch
mm-damon-sysfs-schemes-remove-unnecessary-schemes-existence-check-in-damon_sysfs_schemes_clear_regions.patch
mm-damon-sysfs-handle-clear_schemes_tried_regions-from-damon-sysfs-context.patch
mm-damon-core-introduce-damon_call.patch
mm-damon-sysfs-use-damon_call-for-update_schemes_stats.patch
mm-damon-sysfs-use-damon_call-for-commit_schemes_quota_goals.patch
mm-damon-sysfs-use-damon_call-for-update_schemes_effective_quotas.patch
mm-damon-core-implement-damos_walk.patch
docs-mm-damon-design-document-damos-regions-walking.patch
mm-damon-sysfs-use-damos_walk-for-update_schemes_tried_bytesregions.patch
mm-damon-sysfs-remove-unused-code-for-schemes-tried-regions-update.patch
mm-damon-clarify-trying-vs-applying-on-damos_stat-kernel-doc-comment.patch
docs-mm-damon-design-add-statistics-section.patch
docs-admin-guide-mm-damon-usage-link-damos-stat-design-doc.patch
mm-damon-ask-apply_scheme-to-report-filter-passed-region-internal-bytes.patch
mm-damon-paddr-report-filter-passed-bytes-back-for-normal-actions.patch
mm-damon-paddr-report-filter-passed-bytes-back-for-damos_stat-action.patch
mm-damon-core-implement-per-scheme-ops-handled-filter-passed-bytes-stat.patch
mm-damon-syfs-schemes-implement-per-scheme-filter-passed-bytes-stat.patch
docs-mm-damon-design-document-sz_ops_filter_passed.patch
docs-admin-guide-mm-damon-usage-document-sz_ops_filter_passed.patch
docs-abi-damon-document-per-scheme-filter-passed-bytes-stat-file.patch
mm-damon-core-pass-per-region-filter-passed-bytes-to-damos_walk_control-walk_fn.patch
mm-damon-sysfs-schemes-expose-per-region-filter-passed-bytes.patch
docs-mm-damon-design-document-per-region-sz_filter_passed-stat.patch
docs-admin-guide-mm-damon-usage-document-sz_filtered_out-of-scheme-tried-region-directories.patch
docs-abi-damon-document-per-region-damos-filter-passed-bytes-stat-file.patch
