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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2019 Linus Walleij <linus.walleij@linaro.org>
* Copyright (c) 2023 Linux Test Project
*/
/*\
* [Description]
*
* Negative ioprio_set() test. Test some non-working priorities to make
* sure they don't work.
*/
#include "tst_test.h"
#include "ioprio.h"
static void run(void)
{
int class;
class = IOPRIO_CLASS_BE;
/*
* Test to fail with prio 8, first set prio 4 so we know what it
* should still be after failure, i.e. we check that the priority
* didn't change as a side effect of setting an invalid priority.
*/
sys_ioprio_set(IOPRIO_WHO_PROCESS, 0,
IOPRIO_PRIO_VALUE(class, 4));
TEST(sys_ioprio_set(IOPRIO_WHO_PROCESS, 0,
IOPRIO_PRIO_VALUE(class, IOPRIO_PRIO_NUM)));
if (TST_RET == -1) {
ioprio_check_setting(class, 4, 1);
if (errno == EINVAL)
tst_res(TPASS | TTERRNO, "returned correct error for wrong prio");
else
tst_res(TFAIL, "ioprio_set returns wrong errno %d",
TST_ERR);
} else {
tst_res(TFAIL, "ioprio_set IOPRIO_CLASS_BE prio 8 should not work");
}
/* Any other prio than 0 should not work with NONE */
class = IOPRIO_CLASS_NONE;
TEST(sys_ioprio_set(IOPRIO_WHO_PROCESS, 0,
IOPRIO_PRIO_VALUE(class, 4)));
if (TST_RET == -1) {
tst_res(TINFO, "tested illegal priority with class %s",
to_class_str[class]);
if (errno == EINVAL)
tst_res(TPASS | TTERRNO, "returned correct error for wrong prio");
else
tst_res(TFAIL, "ioprio_set returns wrong errno %d",
TST_ERR);
} else {
tst_res(TFAIL, "ioprio_set IOPRIO_CLASS_NONE should fail");
}
}
static struct tst_test test = {
.test_all = run,
};
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