This is a note to let you know that I've just added the patch titled
selftests/resctrl: Remove bw_report and bm_type from main()
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
selftests-resctrl-remove-bw_report-and-bm_type-from-.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 9d927dab1a26936dae56d5e161f55f57358b70a2
Author: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
Date: Mon Sep 4 12:53:34 2023 +0300
selftests/resctrl: Remove bw_report and bm_type from main()
[ Upstream commit 47e36f16c7846bf3627ff68525e02555c53dc99e ]
bw_report is always set to "reads" and bm_type is set to "fill_buf" but
is never used.
Set bw_report directly to "reads" in MBA/MBM test and remove bm_type.
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
Tested-by: Shaopeng Tan <tan.shaopeng@xxxxxxxxxxxxxx>
Reviewed-by: Reinette Chatre <reinette.chatre@xxxxxxxxx>
Reviewed-by: Shaopeng Tan <tan.shaopeng@xxxxxxxxxxxxxx>
Reviewed-by: "Wieczor-Retman, Maciej" <maciej.wieczor-retman@xxxxxxxxx>
Signed-off-by: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx>
Stable-dep-of: 3aff51464455 ("selftests/resctrl: Extend signal handler coverage to unmount on receiving signal")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/tools/testing/selftests/resctrl/mba_test.c b/tools/testing/selftests/resctrl/mba_test.c
index c7d1ec6d81ea8..c5c0588779d2b 100644
--- a/tools/testing/selftests/resctrl/mba_test.c
+++ b/tools/testing/selftests/resctrl/mba_test.c
@@ -141,7 +141,7 @@ void mba_test_cleanup(void)
remove(RESULT_FILE_NAME);
}
-int mba_schemata_change(int cpu_no, char *bw_report, char **benchmark_cmd)
+int mba_schemata_change(int cpu_no, char **benchmark_cmd)
{
struct resctrl_val_param param = {
.resctrl_val = MBA_STR,
@@ -149,7 +149,7 @@ int mba_schemata_change(int cpu_no, char *bw_report, char **benchmark_cmd)
.mongrp = "m1",
.cpu_no = cpu_no,
.filename = RESULT_FILE_NAME,
- .bw_report = bw_report,
+ .bw_report = "reads",
.setup = mba_setup
};
int ret;
diff --git a/tools/testing/selftests/resctrl/mbm_test.c b/tools/testing/selftests/resctrl/mbm_test.c
index d0c26a5e89fb9..724412186d636 100644
--- a/tools/testing/selftests/resctrl/mbm_test.c
+++ b/tools/testing/selftests/resctrl/mbm_test.c
@@ -109,7 +109,7 @@ void mbm_test_cleanup(void)
remove(RESULT_FILE_NAME);
}
-int mbm_bw_change(size_t span, int cpu_no, char *bw_report, char **benchmark_cmd)
+int mbm_bw_change(size_t span, int cpu_no, char **benchmark_cmd)
{
struct resctrl_val_param param = {
.resctrl_val = MBM_STR,
@@ -118,7 +118,7 @@ int mbm_bw_change(size_t span, int cpu_no, char *bw_report, char **benchmark_cmd
.span = span,
.cpu_no = cpu_no,
.filename = RESULT_FILE_NAME,
- .bw_report = bw_report,
+ .bw_report = "reads",
.setup = mbm_setup
};
int ret;
diff --git a/tools/testing/selftests/resctrl/resctrl.h b/tools/testing/selftests/resctrl/resctrl.h
index 9e46fa90e7be7..df75c89060329 100644
--- a/tools/testing/selftests/resctrl/resctrl.h
+++ b/tools/testing/selftests/resctrl/resctrl.h
@@ -93,10 +93,10 @@ int perf_event_open(struct perf_event_attr *hw_event, pid_t pid, int cpu,
int group_fd, unsigned long flags);
int run_fill_buf(size_t span, int memflush, int op, bool once);
int resctrl_val(char **benchmark_cmd, struct resctrl_val_param *param);
-int mbm_bw_change(size_t span, int cpu_no, char *bw_report, char **benchmark_cmd);
+int mbm_bw_change(size_t span, int cpu_no, char **benchmark_cmd);
void tests_cleanup(void);
void mbm_test_cleanup(void);
-int mba_schemata_change(int cpu_no, char *bw_report, char **benchmark_cmd);
+int mba_schemata_change(int cpu_no, char **benchmark_cmd);
void mba_test_cleanup(void);
int get_cbm_mask(char *cache_type, char *cbm_mask);
int get_cache_size(int cpu_no, char *cache_type, unsigned long *cache_size);
diff --git a/tools/testing/selftests/resctrl/resctrl_tests.c b/tools/testing/selftests/resctrl/resctrl_tests.c
index 59a361660d8c8..116f67d833f75 100644
--- a/tools/testing/selftests/resctrl/resctrl_tests.c
+++ b/tools/testing/selftests/resctrl/resctrl_tests.c
@@ -70,8 +70,7 @@ void tests_cleanup(void)
cat_test_cleanup();
}
-static void run_mbm_test(char **benchmark_cmd, size_t span,
- int cpu_no, char *bw_report)
+static void run_mbm_test(char **benchmark_cmd, size_t span, int cpu_no)
{
int res;
@@ -90,7 +89,7 @@ static void run_mbm_test(char **benchmark_cmd, size_t span,
goto umount;
}
- res = mbm_bw_change(span, cpu_no, bw_report, benchmark_cmd);
+ res = mbm_bw_change(span, cpu_no, benchmark_cmd);
ksft_test_result(!res, "MBM: bw change\n");
if ((get_vendor() == ARCH_INTEL) && res)
ksft_print_msg("Intel MBM may be inaccurate when Sub-NUMA Clustering is enabled. Check BIOS configuration.\n");
@@ -99,7 +98,7 @@ static void run_mbm_test(char **benchmark_cmd, size_t span,
umount_resctrlfs();
}
-static void run_mba_test(char **benchmark_cmd, int cpu_no, char *bw_report)
+static void run_mba_test(char **benchmark_cmd, int cpu_no)
{
int res;
@@ -118,7 +117,7 @@ static void run_mba_test(char **benchmark_cmd, int cpu_no, char *bw_report)
goto umount;
}
- res = mba_schemata_change(cpu_no, bw_report, benchmark_cmd);
+ res = mba_schemata_change(cpu_no, benchmark_cmd);
ksft_test_result(!res, "MBA: schemata change\n");
umount:
@@ -179,9 +178,9 @@ static void run_cat_test(int cpu_no, int no_of_bits)
int main(int argc, char **argv)
{
bool has_ben = false, mbm_test = true, mba_test = true, cmt_test = true;
- char *benchmark_cmd[BENCHMARK_ARGS], bw_report[64], bm_type[64];
char benchmark_cmd_area[BENCHMARK_ARGS][BENCHMARK_ARG_SIZE];
int c, cpu_no = 1, argc_new = argc, i, no_of_bits = 0;
+ char *benchmark_cmd[BENCHMARK_ARGS];
int ben_ind, ben_count, tests = 0;
size_t span = 250 * MB;
bool cat_test = true;
@@ -284,9 +283,6 @@ int main(int argc, char **argv)
benchmark_cmd[5] = NULL;
}
- sprintf(bw_report, "reads");
- sprintf(bm_type, "fill_buf");
-
if (!check_resctrlfs_support())
return ksft_exit_skip("resctrl FS does not exist. Enable X86_CPU_RESCTRL config option.\n");
@@ -298,10 +294,10 @@ int main(int argc, char **argv)
ksft_set_plan(tests ? : 4);
if (mbm_test)
- run_mbm_test(benchmark_cmd, span, cpu_no, bw_report);
+ run_mbm_test(benchmark_cmd, span, cpu_no);
if (mba_test)
- run_mba_test(benchmark_cmd, cpu_no, bw_report);
+ run_mba_test(benchmark_cmd, cpu_no);
if (cmt_test)
run_cmt_test(benchmark_cmd, cpu_no);
