From 2cb7e0aaedad73b076ea18c6900b0e86c5760d79 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sat, 27 Apr 2024 15:00:47 +0200 Subject: Adding upstream version 247.3. Signed-off-by: Daniel Baumann --- src/shared/numa-util.h | 35 +++++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 src/shared/numa-util.h (limited to 'src/shared/numa-util.h') diff --git a/src/shared/numa-util.h b/src/shared/numa-util.h new file mode 100644 index 0000000..2f736c9 --- /dev/null +++ b/src/shared/numa-util.h @@ -0,0 +1,35 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +#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); + +int numa_mask_add_all(CPUSet *mask); + +const char* mpol_to_string(int i) _const_; +int mpol_from_string(const char *s) _pure_; -- cgit v1.2.3