diff options
author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
---|---|---|
committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 15:35:18 +0000 |
commit | b750101eb236130cf056c675997decbac904cc49 (patch) | |
tree | a5df1a06754bdd014cb975c051c83b01c9a97532 /src/shared/numa-util.h | |
parent | Initial commit. (diff) | |
download | systemd-upstream.tar.xz systemd-upstream.zip |
Adding upstream version 252.22.upstream/252.22upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | src/shared/numa-util.h | 35 |
1 files changed, 35 insertions, 0 deletions
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_; |