linux-stable/include/linux/resctrl.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _RESCTRL_H
#define _RESCTRL_H

#ifdef CONFIG_PROC_CPU_RESCTRL

int proc_resctrl_show(struct seq_file *m,
		      struct pid_namespace *ns,
		      struct pid *pid,
		      struct task_struct *tsk);

#endif

#endif /* _RESCTRL_H */
x86/resctrl: Add task resctrl information display Monitoring tools that want to find out which resctrl control and monitor groups a task belongs to must currently read the "tasks" file in every group until they locate the process ID. Add an additional file /proc/{pid}/cpu_resctrl_groups to provide this information: 1) res: mon: resctrl is not available. 2) res:/ mon: Task is part of the root resctrl control group, and it is not associated to any monitor group. 3) res:/ mon:mon0 Task is part of the root resctrl control group and monitor group mon0. 4) res:group0 mon: Task is part of resctrl control group group0, and it is not associated to any monitor group. 5) res:group0 mon:mon1 Task is part of resctrl control group group0 and monitor group mon1. Signed-off-by: Chen Yu <yu.c.chen@intel.com> Signed-off-by: Borislav Petkov <bp@suse.de> Tested-by: Jinshi Chen <jinshi.chen@intel.com> Link: https://lkml.kernel.org/r/20200115092851.14761-1-yu.c.chen@intel.com 2020-01-15 09:28:51 +00:00			`/* SPDX-License-Identifier: GPL-2.0 */`
			`#ifndef _RESCTRL_H`
			`#define _RESCTRL_H`

			`#ifdef CONFIG_PROC_CPU_RESCTRL`

			`int proc_resctrl_show(struct seq_file *m,`
			`struct pid_namespace *ns,`
			`struct pid *pid,`
			`struct task_struct *tsk);`

			`#endif`

			`#endif /* _RESCTRL_H */`