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authorThomas Gleixner <tglx@linutronix.de>2017-03-09 12:06:41 +0100
committerThomas Gleixner <tglx@linutronix.de>2017-03-09 12:06:41 +0100
commit920c634aff6cb66e7f352668521eb1313897e93c (patch)
tree0f2e2eb15756fdd93c8ea47f9080fc3c1abeeae6 /include/linux/sched/numa_balancing.h
parentb28ace12661fbcfd90959c1e84ff5a85113a82a1 (diff)
parent4b9de5da7e120c7f02395da729f0ec77ce7a6044 (diff)
Merge tag 'irq-fixes-4.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent
Pull irqchip/irqdomain updates for 4.11-rc2 from Marc Zyngier - irqchip/crossbar: Some type tidying up - irqchip/gicv3-its: Workaround for a Qualcomm erratum - irqdomain: Compile for for systems that don't use CONFIG_IRQ_DOMAIN Fixed up minor conflict in the crossbar driver.
Diffstat (limited to 'include/linux/sched/numa_balancing.h')
-rw-r--r--include/linux/sched/numa_balancing.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/include/linux/sched/numa_balancing.h b/include/linux/sched/numa_balancing.h
new file mode 100644
index 000000000000..35d5fc77b4be
--- /dev/null
+++ b/include/linux/sched/numa_balancing.h
@@ -0,0 +1,46 @@
+#ifndef _LINUX_SCHED_NUMA_BALANCING_H
+#define _LINUX_SCHED_NUMA_BALANCING_H
+
+/*
+ * This is the interface between the scheduler and the MM that
+ * implements memory access pattern based NUMA-balancing:
+ */
+
+#include <linux/sched.h>
+
+#define TNF_MIGRATED 0x01
+#define TNF_NO_GROUP 0x02
+#define TNF_SHARED 0x04
+#define TNF_FAULT_LOCAL 0x08
+#define TNF_MIGRATE_FAIL 0x10
+
+#ifdef CONFIG_NUMA_BALANCING
+extern void task_numa_fault(int last_node, int node, int pages, int flags);
+extern pid_t task_numa_group_id(struct task_struct *p);
+extern void set_numabalancing_state(bool enabled);
+extern void task_numa_free(struct task_struct *p);
+extern bool should_numa_migrate_memory(struct task_struct *p, struct page *page,
+ int src_nid, int dst_cpu);
+#else
+static inline void task_numa_fault(int last_node, int node, int pages,
+ int flags)
+{
+}
+static inline pid_t task_numa_group_id(struct task_struct *p)
+{
+ return 0;
+}
+static inline void set_numabalancing_state(bool enabled)
+{
+}
+static inline void task_numa_free(struct task_struct *p)
+{
+}
+static inline bool should_numa_migrate_memory(struct task_struct *p,
+ struct page *page, int src_nid, int dst_cpu)
+{
+ return true;
+}
+#endif
+
+#endif /* _LINUX_SCHED_NUMA_BALANCING_H */