1#!/bin/bash
2# SPDX-License-Identifier: GPL-2.0
3
4# Kselftest framework requirement - SKIP code is 4.
5ksft_skip=4
6
7if [ $EUID -ne 0 ]
8then
9	echo "Run as root"
10	exit $ksft_skip
11fi
12
13damon_reclaim_enabled="/sys/module/damon_reclaim/parameters/enabled"
14if [ ! -f "$damon_reclaim_enabled" ]
15then
16	echo "No 'enabled' file.  Maybe DAMON_RECLAIM not built"
17	exit $ksft_skip
18fi
19
20nr_kdamonds=$(pgrep kdamond | wc -l)
21if [ "$nr_kdamonds" -ne 0 ]
22then
23	echo "Another kdamond is running"
24	exit $ksft_skip
25fi
26
27echo Y > "$damon_reclaim_enabled"
28
29nr_kdamonds=$(pgrep kdamond | wc -l)
30if [ "$nr_kdamonds" -ne 1 ]
31then
32	echo "kdamond is not turned on"
33	exit 1
34fi
35
36echo N > "$damon_reclaim_enabled"
37nr_kdamonds=$(pgrep kdamond | wc -l)
38if [ "$nr_kdamonds" -ne 0 ]
39then
40	echo "kdamond is not turned off"
41	exit 1
42fi
43