diff options
| author |  SeongJae Park <sj@kernel.org>
| 2022-10-25 17:36:48 +0000 |
|---|---|---|
| committer |  Andrew Morton <akpm@linux-foundation.org>
| 2022-11-30 15:01:26 -0800 |
| commit | 4cc0ee7787d7dc595752a8de2e073efa68f7c965 (patch) | |
| tree | 992dcd99f8d4de1dc88d36e1933550ac9b3d75d1 /tools | |
| parent | mm/damon/reclaim: enable and disable synchronously (diff) | |
| download | linux-4cc0ee7787d7dc595752a8de2e073efa68f7c965.tar.gz linux-4cc0ee7787d7dc595752a8de2e073efa68f7c965.tar.bz2 linux-4cc0ee7787d7dc595752a8de2e073efa68f7c965.zip | |
selftests/damon: add tests for DAMON_RECLAIM's enabled parameter
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@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/selftests/damon/Makefile | 1 | ||||
| -rw-r--r-- | tools/testing/selftests/damon/reclaim.sh | 42 |
2 files changed, 43 insertions, 0 deletions
diff --git a/tools/testing/selftests/damon/Makefile b/tools/testing/selftests/damon/Makefile index a1fa2eff8192..dbbf18cb3e6b 100644 --- a/tools/testing/selftests/damon/Makefile +++ b/tools/testing/selftests/damon/Makefile @@ -8,5 +8,6 @@ TEST_PROGS = debugfs_attrs.sh debugfs_schemes.sh debugfs_target_ids.sh 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 diff --git a/tools/testing/selftests/damon/reclaim.sh b/tools/testing/selftests/damon/reclaim.sh new file mode 100644 index 000000000000..78dbc2334cbe --- /dev/null +++ b/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 |