[thirdparty/systemd.git] / src / shared / numa-util.h

/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once

#include "cpu-set-util.h"
#include "missing_syscall.h"

static inline bool mpol_is_valid(int t) {
        return t >= MPOL_DEFAULT && t <= MPOL_LOCAL;
}

typedef struct NUMAPolicy {
        /* Always use numa_policy_get_type() to read the value */
        int type;
        CPUSet nodes;
} NUMAPolicy;

bool numa_policy_is_valid(const NUMAPolicy *p);

static inline int numa_policy_get_type(const NUMAPolicy *p) {
        return p->type < 0 ? (p->nodes.set ? MPOL_PREFERRED : -1) : p->type;
}

static inline void numa_policy_reset(NUMAPolicy *p) {
        assert(p);
        cpu_set_reset(&p->nodes);
        p->type = -1;
}

int apply_numa_policy(const NUMAPolicy *policy);
int numa_to_cpu_set(const NUMAPolicy *policy, CPUSet *set);

const char* mpol_to_string(int i) _const_;
int mpol_from_string(const char *s) _pure_;
Commit	Line	Data
1808f768 MS	1	/* SPDX-License-Identifier: LGPL-2.1+ */
	2	#pragma once
	3
	4	#include "cpu-set-util.h"
	5	#include "missing_syscall.h"
	6
	7	static inline bool mpol_is_valid(int t) {
	8	return t >= MPOL_DEFAULT && t <= MPOL_LOCAL;
	9	}
	10
	11	typedef struct NUMAPolicy {
	12	/* Always use numa_policy_get_type() to read the value */
	13	int type;
	14	CPUSet nodes;
	15	} NUMAPolicy;
	16
	17	bool numa_policy_is_valid(const NUMAPolicy *p);
	18
	19	static inline int numa_policy_get_type(const NUMAPolicy *p) {
	20	return p->type < 0 ? (p->nodes.set ? MPOL_PREFERRED : -1) : p->type;
	21	}
	22
	23	static inline void numa_policy_reset(NUMAPolicy *p) {
	24	assert(p);
	25	cpu_set_reset(&p->nodes);
	26	p->type = -1;
	27	}
	28
	29	int apply_numa_policy(const NUMAPolicy *policy);
	30	int numa_to_cpu_set(const NUMAPolicy policy, CPUSet set);
	31
	32	const char* mpol_to_string(int i) _const_;
	33	int mpol_from_string(const char *s) _pure_;