The patch titled
Subject: selftests/damon: add tests for DAMON_RECLAIM's enabled parameter
has been added to the -mm mm-unstable branch. Its filename is
selftests-damon-add-tests-for-damon_reclaims-enabled-parameter.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/selftests-damon-add-tests-for-damon_reclaims-enabled-parameter.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Before you just go and hit "reply", please:
a) Consider who else should be cc'ed
b) Prefer to cc a suitable mailing list as well
c) Ideally: find the original patch on the mailing list and do a
reply-to-all to that, adding suitable additional cc's
*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next via the mm-everything
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@xxxxxxxxxx>
Subject: selftests/damon: add tests for DAMON_RECLAIM's enabled parameter
Date: Tue, 25 Oct 2022 17:36:48 +0000
Add simple test cases for DAMON_RECLAIM's 'enabled' parameter. Those
tests are focusing on the synchronous behavior of DAMON_RECLAIM enabling
and disabling.
Link: https://lkml.kernel.org/r/20221025173650.90624-3-sj@xxxxxxxxxx
Signed-off-by: SeongJae Park <sj@xxxxxxxxxx>
Cc: Shuah Khan <shuah@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/tools/testing/selftests/damon/Makefile~selftests-damon-add-tests-for-damon_reclaims-enabled-parameter
+++ a/tools/testing/selftests/damon/Makefile
@@ -8,5 +8,6 @@ TEST_PROGS = debugfs_attrs.sh debugfs_sc
TEST_PROGS += debugfs_empty_targets.sh debugfs_huge_count_read_write.sh
TEST_PROGS += debugfs_duplicate_context_creation.sh
TEST_PROGS += sysfs.sh
+TEST_PROGS += reclaim.sh
include ../lib.mk
--- /dev/null
+++ a/tools/testing/selftests/damon/reclaim.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Kselftest framework requirement - SKIP code is 4.
+ksft_skip=4
+
+if [ $EUID -ne 0 ]
+then
+ echo "Run as root"
+ exit $ksft_skip
+fi
+
+damon_reclaim_enabled="/sys/module/damon_reclaim/parameters/enabled"
+if [ ! -f "$damon_reclaim_enabled" ]
+then
+ echo "No 'enabled' file. Maybe DAMON_RECLAIM not built"
+ exit $ksft_skip
+fi
+
+nr_kdamonds=$(pgrep kdamond | wc -l)
+if [ "$nr_kdamonds" -ne 0 ]
+then
+ echo "Another kdamond is running"
+ exit $ksft_skip
+fi
+
+echo Y > "$damon_reclaim_enabled"
+
+nr_kdamonds=$(pgrep kdamond | wc -l)
+if [ "$nr_kdamonds" -ne 1 ]
+then
+ echo "kdamond is not turned on"
+ exit 1
+fi
+
+echo N > "$damon_reclaim_enabled"
+nr_kdamonds=$(pgrep kdamond | wc -l)
+if [ "$nr_kdamonds" -ne 0 ]
+then
+ echo "kdamond is not turned off"
+ exit 1
+fi
_
Patches currently in -mm which might be from sj@xxxxxxxxxx are
mm-damon-core-split-out-damos-charged-region-skip-logic-into-a-new-function.patch
mm-damon-core-split-damos-application-logic-into-a-new-function.patch
mm-damon-core-split-out-scheme-stat-update-logic-into-a-new-function.patch
mm-damon-core-split-out-scheme-quota-adjustment-logic-into-a-new-function.patch
mm-damon-sysfs-use-damon_addr_range-for-regions-start-and-end-values.patch
mm-damon-sysfs-remove-parameters-of-damon_sysfs_region_alloc.patch
mm-damon-sysfs-move-sysfs_lock-to-common-module.patch
mm-damon-sysfs-move-unsigned-long-range-directory-to-common-module.patch
mm-damon-sysfs-split-out-kdamond-independent-schemes-stats-update-logic-into-a-new-function.patch
mm-damon-modules-deduplicate-init-steps-for-damon-context-setup.patch
mm-damon-reclaimlru_sort-remove-unnecessarily-included-headers.patch
mm-damon-reclaim-enable-and-disable-synchronously.patch
selftests-damon-add-tests-for-damon_reclaims-enabled-parameter.patch
mm-damon-lru_sort-enable-and-disable-synchronously.patch
selftests-damon-add-tests-for-damon_lru_sorts-enabled-parameter.patch
