| /*****************************************************************************\ | |
| * task_cgroup_memory.h - memory cgroup subsystem primitives for task/cgroup | |
| ***************************************************************************** | |
| * Copyright (C) 2009 CEA/DAM/DIF | |
| * Written by Matthieu Hautreux <matthieu.hautreux@cea.fr> | |
| * | |
| * This file is part of Slurm, a resource management program. | |
| * For details, see <https://slurm.schedmd.com/>. | |
| * Please also read the included file: DISCLAIMER. | |
| * | |
| * Slurm is free software; you can redistribute it and/or modify it under | |
| * the terms of the GNU General Public License as published by the Free | |
| * Software Foundation; either version 2 of the License, or (at your option) | |
| * any later version. | |
| * | |
| * In addition, as a special exception, the copyright holders give permission | |
| * to link the code of portions of this program with the OpenSSL library under | |
| * certain conditions as described in each individual source file, and | |
| * distribute linked combinations including the two. You must obey the GNU | |
| * General Public License in all respects for all of the code used other than | |
| * OpenSSL. If you modify file(s) with this exception, you may extend this | |
| * exception to your version of the file(s), but you are not obligated to do | |
| * so. If you do not wish to do so, delete this exception statement from your | |
| * version. If you delete this exception statement from all source files in | |
| * the program, then also delete it here. | |
| * | |
| * Slurm is distributed in the hope that it will be useful, but WITHOUT ANY | |
| * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
| * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more | |
| * details. | |
| * | |
| * You should have received a copy of the GNU General Public License along | |
| * with Slurm; if not, write to the Free Software Foundation, Inc., | |
| * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. | |
| \*****************************************************************************/ | |
| #ifndef _TASK_CGROUP_MEMORY_H_ | |
| #define _TASK_CGROUP_MEMORY_H_ | |
| /* initialize memory subsystem of task/cgroup */ | |
| extern int task_cgroup_memory_init(void); | |
| /* release memory subsystem resources */ | |
| extern int task_cgroup_memory_fini(void); | |
| /* create user/job/jobstep memory cgroups */ | |
| extern int task_cgroup_memory_create(stepd_step_rec_t *step); | |
| /* detect if oom ran on a step or job and print notice of said event */ | |
| extern int task_cgroup_memory_check_oom(stepd_step_rec_t *step); | |
| /* | |
| * Read the memory limit counters from the cgroup and log whether the step or | |
| * job hit their memory or memory+swap limit. Must be called once at the end of | |
| * the step. | |
| */ | |
| extern void task_cgroup_memory_log_events(stepd_step_rec_t *step); | |
| /* add a pid to the cgroup */ | |
| extern int task_cgroup_memory_add_pid(stepd_step_rec_t *step, pid_t pid, | |
| uint32_t taskid); | |
| /* add a pid to extern step cgroup. This one doesn't go at task_x level. */ | |
| extern int task_cgroup_memory_add_extern_pid(pid_t pid); | |
| /* update memory limits for a running job/step (only reduction supported) */ | |
| extern int task_cgroup_memory_update_limit(stepd_step_rec_t *step, | |
| uint64_t new_job_mem, | |
| uint64_t new_step_mem); | |
| #endif |