Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _LINUX_SCHED_NUMA_BALANCING_H
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#define _LINUX_SCHED_NUMA_BALANCING_H
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/*
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* This is the interface between the scheduler and the MM that
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* implements memory access pattern based NUMA-balancing:
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*/
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#include <linux/sched.h>
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#define TNF_MIGRATED 0x01
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#define TNF_NO_GROUP 0x02
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#define TNF_SHARED 0x04
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#define TNF_FAULT_LOCAL 0x08
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#define TNF_MIGRATE_FAIL 0x10
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enum numa_vmaskip_reason {
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NUMAB_SKIP_UNSUITABLE,
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NUMAB_SKIP_SHARED_RO,
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NUMAB_SKIP_INACCESSIBLE,
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NUMAB_SKIP_SCAN_DELAY,
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NUMAB_SKIP_PID_INACTIVE,
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NUMAB_SKIP_IGNORE_PID,
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NUMAB_SKIP_SEQ_COMPLETED,
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};
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#ifdef CONFIG_NUMA_BALANCING
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extern void task_numa_fault(int last_node, int node, int pages, int flags);
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extern pid_t task_numa_group_id(struct task_struct *p);
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extern void set_numabalancing_state(bool enabled);
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extern void task_numa_free(struct task_struct *p, bool final);
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bool should_numa_migrate_memory(struct task_struct *p, struct folio *folio,
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int src_nid, int dst_cpu);
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#else
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static inline void task_numa_fault(int last_node, int node, int pages,
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int flags)
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{
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}
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static inline pid_t task_numa_group_id(struct task_struct *p)
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{
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return 0;
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}
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static inline void set_numabalancing_state(bool enabled)
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{
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}
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static inline void task_numa_free(struct task_struct *p, bool final)
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{
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}
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static inline bool should_numa_migrate_memory(struct task_struct *p,
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struct folio *folio, int src_nid, int dst_cpu)
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{
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return true;
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}
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#endif
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#endif /* _LINUX_SCHED_NUMA_BALANCING_H */
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