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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (c) 2020 Red Hat, Inc.
* Copyright (c) 2020 Li Wang <liwang@redhat.com>
*/
#ifndef TST_CGROUP_H
#define TST_CGROUP_H
#define PATH_TMP_CG_MEM "/tmp/cgroup_mem"
#define PATH_TMP_CG_CST "/tmp/cgroup_cst"
enum tst_cgroup_ver {
TST_CGROUP_V1 = 1,
TST_CGROUP_V2 = 2,
};
enum tst_cgroup_ctrl {
TST_CGROUP_MEMCG = 1,
TST_CGROUP_CPUSET = 2,
/* add cgroup controller */
};
enum tst_cgroup_ver tst_cgroup_version(void);
/* To mount/umount specified cgroup controller on 'cgroup_dir' path */
void tst_cgroup_mount(enum tst_cgroup_ctrl ctrl, const char *cgroup_dir);
void tst_cgroup_umount(const char *cgroup_dir);
/* To move current process PID to the mounted cgroup tasks */
void tst_cgroup_move_current(const char *cgroup_dir);
/* To set cgroup controller knob with new value */
void tst_cgroup_set_knob(const char *cgroup_dir, const char *knob, long value);
/* Set of functions to set knobs under the memory controller */
void tst_cgroup_mem_set_maxbytes(const char *cgroup_dir, long memsz);
int tst_cgroup_mem_swapacct_enabled(const char *cgroup_dir);
void tst_cgroup_mem_set_maxswap(const char *cgroup_dir, long memsz);
/* Set of functions to read/write cpuset controller files content */
void tst_cgroup_cpuset_read_files(const char *cgroup_dir, const char *filename, char *retbuf);
void tst_cgroup_cpuset_write_files(const char *cgroup_dir, const char *filename, const char *buf);
#endif /* TST_CGROUP_H */
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