The patch titled
Subject: mm/damon/core: pass per-region filter-passed bytes to damos_walk_control->walk_fn()
has been added to the -mm mm-unstable branch. Its filename is
mm-damon-core-pass-per-region-filter-passed-bytes-to-damos_walk_control-walk_fn.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-core-pass-per-region-filter-passed-bytes-to-damos_walk_control-walk_fn.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/core: pass per-region filter-passed bytes to damos_walk_control->walk_fn()
Date: Mon, 6 Jan 2025 11:33:57 -0800
Total size of memory that passed DAMON operations set layer-handled DAMOS
filters per scheme is provided to DAMON core API and ABI (sysfs interface)
users. Having it per-region in non-accumulated way can provide it in
finer granularity. Provide it to damos_walk() core API users, by passing
the data to damos_walk_control->walk_fn().
Link: https://lkml.kernel.org/r/20250106193401.109161-13-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Cc: Jonathan Corbet <corbet@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/damon.h | 2 +-
mm/damon/core.c | 7 ++++---
mm/damon/sysfs.c | 2 +-
3 files changed, 6 insertions(+), 5 deletions(-)
--- a/include/linux/damon.h~mm-damon-core-pass-per-region-filter-passed-bytes-to-damos_walk_control-walk_fn
+++ a/include/linux/damon.h
@@ -388,7 +388,7 @@ struct damos;
struct damos_walk_control {
void (*walk_fn)(void *data, struct damon_ctx *ctx,
struct damon_target *t, struct damon_region *r,
- struct damos *s);
+ struct damos *s, unsigned long sz_filter_passed);
void *data;
/* private: internal use only */
/* informs if the kdamond finished handling of the walk request */
--- a/mm/damon/core.c~mm-damon-core-pass-per-region-filter-passed-bytes-to-damos_walk_control-walk_fn
+++ a/mm/damon/core.c
@@ -1445,7 +1445,8 @@ static bool damos_filter_out(struct damo
* installed by damos_walk() and not yet uninstalled, invoke it.
*/
static void damos_walk_call_walk(struct damon_ctx *ctx, struct damon_target *t,
- struct damon_region *r, struct damos *s)
+ struct damon_region *r, struct damos *s,
+ unsigned long sz_filter_passed)
{
struct damos_walk_control *control;
@@ -1454,7 +1455,7 @@ static void damos_walk_call_walk(struct
mutex_unlock(&ctx->walk_control_lock);
if (!control)
return;
- control->walk_fn(control->data, ctx, t, r, s);
+ control->walk_fn(control->data, ctx, t, r, s, sz_filter_passed);
}
/*
@@ -1574,7 +1575,7 @@ static void damos_apply_scheme(struct da
sz_applied = c->ops.apply_scheme(c, t, r, s,
&sz_ops_filter_passed);
}
- damos_walk_call_walk(c, t, r, s);
+ damos_walk_call_walk(c, t, r, s, sz_ops_filter_passed);
ktime_get_coarse_ts64(&end);
quota->total_charged_ns += timespec64_to_ns(&end) -
timespec64_to_ns(&begin);
--- a/mm/damon/sysfs.c~mm-damon-core-pass-per-region-filter-passed-bytes-to-damos_walk_control-walk_fn
+++ a/mm/damon/sysfs.c
@@ -1454,7 +1454,7 @@ struct damon_sysfs_schemes_walk_data {
/* populate the region directory */
static void damon_sysfs_schemes_tried_regions_upd_one(void *data, struct damon_ctx *ctx,
struct damon_target *t, struct damon_region *r,
- struct damos *s)
+ struct damos *s, unsigned long sz_filter_passed)
{
struct damon_sysfs_schemes_walk_data *walk_data = data;
struct damon_sysfs_kdamond *sysfs_kdamond = walk_data->sysfs_kdamond;
_
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
