88 lines
2.1 KiB
C
88 lines
2.1 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/* Copyright (c) 2021 SUSE LLC */
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#include <stdlib.h>
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#include <stdio.h>
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#include "tst_test.h"
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static char *only_mount_v1;
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static char *no_cleanup;
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static struct tst_option opts[] = {
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{"v", &only_mount_v1, "-v\tOnly try to mount CGroups V1"},
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{"n", &no_cleanup, "-n\tLeave CGroups created by test"},
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{NULL, NULL, NULL},
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};
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static struct tst_cg_opts cgopts;
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static struct tst_cg_group *cg_child;
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static void do_test(void)
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{
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char buf[BUFSIZ];
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size_t mem;
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if (!TST_CG_VER_IS_V1(tst_cg, "memory"))
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SAFE_CG_PRINT(tst_cg, "cgroup.subtree_control", "+memory");
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if (!TST_CG_VER_IS_V1(tst_cg, "cpuset"))
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SAFE_CG_PRINT(tst_cg, "cgroup.subtree_control", "+cpuset");
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cg_child = tst_cg_group_mk(tst_cg, "child");
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if (!SAFE_FORK()) {
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SAFE_CG_PRINTF(cg_child, "cgroup.procs", "%d", getpid());
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SAFE_CG_SCANF(cg_child, "memory.current", "%zu", &mem);
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tst_res(TPASS, "child/memory.current = %zu", mem);
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SAFE_CG_PRINTF(cg_child, "memory.max",
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"%zu", (1UL << 24) - 1);
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SAFE_CG_PRINTF(cg_child, "memory.swap.max",
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"%zu", 1UL << 31);
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SAFE_CG_READ(cg_child, "cpuset.mems", buf, sizeof(buf));
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tst_res(TPASS, "child/cpuset.mems = %s", buf);
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SAFE_CG_PRINT(cg_child, "cpuset.mems", buf);
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exit(0);
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}
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SAFE_CG_PRINTF(tst_cg, "memory.max", "%zu", (1UL << 24) - 1);
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SAFE_CG_PRINTF(cg_child, "cgroup.procs", "%d", getpid());
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SAFE_CG_SCANF(tst_cg, "memory.current", "%zu", &mem);
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tst_res(TPASS, "memory.current = %zu", mem);
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tst_reap_children();
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SAFE_CG_PRINTF(tst_cg_drain, "cgroup.procs", "%d", getpid());
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cg_child = tst_cg_group_rm(cg_child);
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}
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static void setup(void)
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{
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cgopts.needs_ver = !!only_mount_v1 ? TST_CG_V1 : 0;
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tst_cg_scan();
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tst_cg_print_config();
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tst_cg_require("memory", &cgopts);
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tst_cg_require("cpuset", &cgopts);
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tst_cg_init();
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}
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static void cleanup(void)
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{
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if (cg_child) {
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SAFE_CG_PRINTF(tst_cg_drain,
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"cgroup.procs", "%d", getpid());
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cg_child = tst_cg_group_rm(cg_child);
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}
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if (!no_cleanup)
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tst_cg_cleanup();
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}
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static struct tst_test test = {
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.test_all = do_test,
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.setup = setup,
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.cleanup = cleanup,
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.options = opts,
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.forks_child = 1,
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};
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