[LTP] [PATCH v2] sched_setscheduler: test SCHED_RESET_ON_FORK

[Richard Palethorpe]

Hello,

I still can't apply this. The problem does not seem to be the PGP
signature though.

Federico Bonfiglio via ltp <ltp@lists.linux.it> writes:

> [[PGP Signed Part:Undecided]]
> Signed-off-by: Federico Bonfiglio <federico.bonfiglio@protonmail.ch>
> ---
>  runtest/syscalls                              |  1 +
>  .../syscalls/sched_setscheduler/.gitignore    |  1 +
>  .../sched_setscheduler/sched_setscheduler04.c | 73 +++++++++++++++++++
>  3 files changed, 75 insertions(+)
>  create mode 100644 testcases/kernel/syscalls/sched_setscheduler/sched_setscheduler04.c
>
> diff --git a/runtest/syscalls b/runtest/syscalls
> index 3dc6fa397..ff516af3d 100644
> --- a/runtest/syscalls
> +++ b/runtest/syscalls
> @@ -1204,6 +1204,7 @@ sched_getscheduler02 sched_getscheduler02
>  sched_setscheduler01 sched_setscheduler01
>  sched_setscheduler02 sched_setscheduler02
>  sched_setscheduler03 sched_setscheduler03
> +sched_setscheduler04 sched_setscheduler04
>
>  sched_yield01 sched_yield01
>
> diff --git a/testcases/kernel/syscalls/sched_setscheduler/.gitignore b/testcases/kernel/syscalls/sched_setscheduler/.gitignore
> index aa8ad9695..1b8860d2c 100644
> --- a/testcases/kernel/syscalls/sched_sets
> cheduler/.gitignore
> +++ b/testcases/kernel/syscalls/sched_setscheduler/.gitignore
> @@ -1,3 +1,4 @@
>  /sched_setscheduler01
>  /sched_setscheduler02
>  /sched_setscheduler03
> +/sched_setscheduler04

No new line at end of file or is it missing from the patch?

> diff --git a/testcases/kernel/syscalls/sched_setscheduler/sched_setscheduler04.c b/testcases/kernel/syscalls/sched_setscheduler/sched_setscheduler04.c
> new file mode 100644
> index 000000000..4a5d27f5b
> --- /dev/null
> +++ b/testcases/kernel/syscalls/sched_setscheduler/sched_setscheduler04.c
> @@ -0,0 +1,73 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later
> +/*
> + * Copyright (c) 2022 Federico Bonfiglio <federico.bonfiglio@protonmail.ch>
> + */
> +
> +/*
> + * [Description]
> + *
> + * Testcases that test if sched_setscheduler with flag
> + * SCHED_RESET_ON_FORK restores children policy to
> + * SCHED_NORMAL.
> + *
> + */
> +
> +#define _GNU_SOURCE
> +#include <stdio.h>
> +#include <stdlib.h>
> +#include <sched.h>
> +#include <linux/sched.h>
> +
> +#include "tst_test.h"
> +#include "tst_sched.h"
> +
> +struct test_c
> ase_t {

Random new line in the patch, stops it from applying.

> +	int policy;
> +	char *desc;
> +};
> +
> +static struct test_case_t cases[] = {
> +	{
> +		.policy = SCHED_FIFO,
> +		.desc = "SCHED_FIFO"
> +	},
> +	{
> +		.policy = SCHED_RR,
> +		.desc = "SCHED_RR"
> +	}
> +};
> +
> +static void test_reset_on_fork(unsigned int i)
> +{
> +	struct sched_variant *tv = &sched_variants[tst_variant];
> +	struct test_case_t *tc = &cases[i];
> +
> +	tst_res(TINFO, "Testing %s variant", tv->desc);
> +	tst_res(TINFO, "Testing %s policy", tc->desc);
> +
> +	struct sched_param param = { .sched_priority = 1 };
> +
> +	tv->sched_setscheduler(getpid(), tc->policy | SCHED_RESET_ON_FORK, &param);
> +
> +	pid_t pid = SAFE_FORK();
> +
> +	if (!pid == 0) {
> +		if (sched_getscheduler(pid) == SCHED_NORMAL)
> +			tst_res(TPASS, "Policy reset to SCHED_NORMAL");
> +		else
> +			tst_res(TFAIL, "Policy NOT reset to SCHED_NORMAL");
> +	}
> +
> +	tst_reap_children();
> +}
> +
> +static struct tst_test test = {
> +	.forks_child = 1,
> +	.caps = (struct tst_cap[]) {
> +	    TST_CAP(TST_CAP_REQ, CAP_SYS_NICE)
>

Another random new line, cuts off the end of the patch.

> +	},
> +	.test_variants = ARRAY_SIZE(sched_variants),
> +	.tcnt = ARRAY_SIZE(cases),
> +	.test = test_reset_on_fork
> +};
> +
> --
> 2.38.1
>
> [2. application/pgp-keys; publickey - Federico Bonfiglio - e96ee84c.asc]...
>
> [[End of PGP Signed Part]]


-- 
Thank you,
Richard.