The quilt patch titled
Subject: mm/damon: remove damon_callback->after_sampling
has been removed from the -mm tree. Its filename was
mm-damon-remove-damon_callback-after_sampling.patch
This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
------------------------------------------------------
From: SeongJae Park <sj@xxxxxxxxxx>
Subject: mm/damon: remove damon_callback->after_sampling
Date: Thu, 6 Mar 2025 09:59:06 -0800
The callback was used by DAMON sysfs interface for reading DAMON internal
data. But it is no more being used, and damon_call() can do similar works
in a better way. Remove it.
Link: https://lkml.kernel.org/r/20250306175908.66300-12-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/damon.h | 11 ++++-------
mm/damon/core.c | 3 ---
2 files changed, 4 insertions(+), 10 deletions(-)
--- a/include/linux/damon.h~mm-damon-remove-damon_callback-after_sampling
+++ a/include/linux/damon.h
@@ -604,7 +604,6 @@ struct damon_operations {
* struct damon_callback - Monitoring events notification callbacks.
*
* @after_wmarks_check: Called after each schemes' watermarks check.
- * @after_sampling: Called after each sampling.
* @after_aggregation: Called after each aggregation.
* @before_damos_apply: Called before applying DAMOS action.
* @before_terminate: Called before terminating the monitoring.
@@ -617,17 +616,15 @@ struct damon_operations {
* attributes of the monitoring context while it's deactivated due to the
* watermarks, this is the good place to do.
*
- * The monitoring thread calls @after_sampling and @after_aggregation for each
- * of the sampling intervals and aggregation intervals, respectively.
- * Therefore, users can safely access the monitoring results without additional
- * protection. For the reason, users are recommended to use these callback for
- * the accesses to the results.
+ * The monitoring thread calls @after_aggregation for each of the aggregation
+ * intervals. Therefore, users can safely access the monitoring results
+ * without additional protection. For the reason, users are recommended to use
+ * these callback for the accesses to the results.
*
* If any callback returns non-zero, monitoring stops.
*/
struct damon_callback {
int (*after_wmarks_check)(struct damon_ctx *context);
- int (*after_sampling)(struct damon_ctx *context);
int (*after_aggregation)(struct damon_ctx *context);
int (*before_damos_apply)(struct damon_ctx *context,
struct damon_target *target,
--- a/mm/damon/core.c~mm-damon-remove-damon_callback-after_sampling
+++ a/mm/damon/core.c
@@ -2432,9 +2432,6 @@ static int kdamond_fn(void *data)
if (ctx->ops.prepare_access_checks)
ctx->ops.prepare_access_checks(ctx);
- if (ctx->callback.after_sampling &&
- ctx->callback.after_sampling(ctx))
- break;
kdamond_usleep(sample_interval);
ctx->passed_sample_intervals++;
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
