+ mm-damon-lru_sort-use-damon_call-repeat-mode-instead-of-damon_callback.patch added to mm-new branch

+ mm-damon-lru_sort-use-damon_call-repeat-mode-instead-of-damon_callback.patch added to mm-new branch

[Andrew Morton]

The patch titled
     Subject: mm/damon/lru_sort: use damon_call() repeat mode instead of damon_callback
has been added to the -mm mm-new branch.  Its filename is
     mm-damon-lru_sort-use-damon_call-repeat-mode-instead-of-damon_callback.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-damon-lru_sort-use-damon_call-repeat-mode-instead-of-damon_callback.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.

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

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branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days

------------------------------------------------------
From: SeongJae Park <sj@kernel.org>
Subject: mm/damon/lru_sort: use damon_call() repeat mode instead of damon_callback
Date: Sat, 12 Jul 2025 12:50:07 -0700

DAMON_LRU_SORT uses damon_callback for periodically reading and writing
DAMON internal data and parameters.  Use its alternative, damon_call()
repeat mode.

Link: https://lkml.kernel.org/r/20250712195016.151108-6-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/damon/lru_sort.c |   70 +++++++++++++++++++++---------------------
 1 file changed, 35 insertions(+), 35 deletions(-)

--- a/mm/damon/lru_sort.c~mm-damon-lru_sort-use-damon_call-repeat-mode-instead-of-damon_callback
+++ a/mm/damon/lru_sort.c
@@ -230,6 +230,39 @@ out:
 	return err;
 }
 
+static int damon_lru_sort_handle_commit_inputs(void)
+{
+	int err;
+
+	if (!commit_inputs)
+		return 0;
+
+	err = damon_lru_sort_apply_parameters();
+	commit_inputs = false;
+	return err;
+}
+
+static int damon_lru_sort_damon_call_fn(void *arg)
+{
+	struct damon_ctx *c = arg;
+	struct damos *s;
+
+	/* update the stats parameter */
+	damon_for_each_scheme(s, c) {
+		if (s->action == DAMOS_LRU_PRIO)
+			damon_lru_sort_hot_stat = s->stat;
+		else if (s->action == DAMOS_LRU_DEPRIO)
+			damon_lru_sort_cold_stat = s->stat;
+	}
+
+	return damon_lru_sort_handle_commit_inputs();
+}
+
+static struct damon_call_control call_control = {
+	.fn = damon_lru_sort_damon_call_fn,
+	.repeat = true,
+};
+
 static int damon_lru_sort_turn(bool on)
 {
 	int err;
@@ -249,7 +282,7 @@ static int damon_lru_sort_turn(bool on)
 	if (err)
 		return err;
 	kdamond_pid = ctx->kdamond->pid;
-	return 0;
+	return damon_call(ctx, &call_control);
 }
 
 static int damon_lru_sort_enabled_store(const char *val,
@@ -288,38 +321,6 @@ module_param_cb(enabled, &enabled_param_
 MODULE_PARM_DESC(enabled,
 	"Enable or disable DAMON_LRU_SORT (default: disabled)");
 
-static int damon_lru_sort_handle_commit_inputs(void)
-{
-	int err;
-
-	if (!commit_inputs)
-		return 0;
-
-	err = damon_lru_sort_apply_parameters();
-	commit_inputs = false;
-	return err;
-}
-
-static int damon_lru_sort_after_aggregation(struct damon_ctx *c)
-{
-	struct damos *s;
-
-	/* update the stats parameter */
-	damon_for_each_scheme(s, c) {
-		if (s->action == DAMOS_LRU_PRIO)
-			damon_lru_sort_hot_stat = s->stat;
-		else if (s->action == DAMOS_LRU_DEPRIO)
-			damon_lru_sort_cold_stat = s->stat;
-	}
-
-	return damon_lru_sort_handle_commit_inputs();
-}
-
-static int damon_lru_sort_after_wmarks_check(struct damon_ctx *c)
-{
-	return damon_lru_sort_handle_commit_inputs();
-}
-
 static int __init damon_lru_sort_init(void)
 {
 	int err = damon_modules_new_paddr_ctx_target(&ctx, &target);
@@ -327,8 +328,7 @@ static int __init damon_lru_sort_init(vo
 	if (err)
 		goto out;
 
-	ctx->callback.after_wmarks_check = damon_lru_sort_after_wmarks_check;
-	ctx->callback.after_aggregation = damon_lru_sort_after_aggregation;
+	call_control.data = ctx;
 
 	/* 'enabled' has set before this function, probably via command line */
 	if (enabled)
_

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

selftests-damon-add-drgn-script-for-extracting-damon-status.patch
selftests-damon-_damon_sysfs-set-kdamondpid-in-start.patch
selftests-damon-add-python-and-drgn-based-damon-sysfs-test.patch
selftests-damon-sysfspy-test-monitoring-attribute-parameters.patch
selftests-damon-sysfspy-test-adaptive-targets-parameter.patch
selftests-damon-sysfspy-test-damos-schemes-parameters-setup.patch
mm-damon-add-trace-event-for-auto-tuned-monitoring-intervals.patch
mm-damon-add-trace-event-for-effective-size-quota.patch
mm-damon-add-trace-event-for-effective-size-quota-fix.patch
mm-damon-add-trace-event-for-effective-size-quota-fix-2.patch
samples-damon-wsse-fix-boot-time-enable-handling.patch
samples-damon-prcl-fix-boot-time-enable-crash.patch
samples-damon-mtier-support-boot-time-enable-setup.patch
mm-damon-reclaim-reset-enabled-when-damon-start-failed.patch
mm-damon-lru_sort-reset-enabled-when-damon-start-failed.patch
mm-damon-reclaim-use-parameter-context-correctly.patch
samples-damon-wsse-rename-to-have-damon_sample_-prefix.patch
samples-damon-prcl-rename-to-have-damon_sample_-prefix.patch
samples-damon-mtier-rename-to-have-damon_sample_-prefix.patch
mm-damon-sysfs-use-damon-core-api-damon_is_running.patch
mm-damon-sysfs-dont-hold-kdamond_lock-in-before_terminate.patch
docs-mm-damon-maintainer-profile-update-for-mm-new-tree.patch
mm-damon-add-struct-damos_migrate_dests.patch
mm-damon-core-add-damos-migrate_dests-field.patch
mm-damon-sysfs-schemes-implement-damos-action-destinations-directory.patch
mm-damon-sysfs-schemes-set-damos-migrate_dests.patch
docs-abi-damon-document-schemes-dests-directory.patch
docs-admin-guide-mm-damon-usage-document-dests-directory.patch
mm-damon-accept-parallel-damon_call-requests.patch
mm-damon-core-introduce-repeat-mode-damon_call.patch
mm-damon-stat-use-damon_call-repeat-mode-instead-of-damon_callback.patch
mm-damon-reclaim-use-damon_call-repeat-mode-instead-of-damon_callback.patch
mm-damon-lru_sort-use-damon_call-repeat-mode-instead-of-damon_callback.patch
samples-damon-prcl-use-damon_call-repeat-mode-instead-of-damon_callback.patch
samples-damon-wsse-use-damon_call-repeat-mode-instead-of-damon_callback.patch
mm-damon-core-do-not-call-opscleanup-when-destroying-targets.patch
mm-damon-core-add-cleanup_target-ops-callback.patch
mm-damon-vaddr-put-pid-in-cleanup_target.patch
mm-damon-sysfs-remove-damon_sysfs_destroy_targets.patch
mm-damon-core-destroy-targets-when-kdamond_fn-finish.patch
mm-damon-sysfs-remove-damon_sysfs_before_terminate.patch
mm-damon-core-remove-damon_callback.patch