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