[PATCH 08/39] autonuma: mm_autonuma and sched_autonuma data structures

[Andrea Arcangeli]

Define the two data structures that collect the per-process (in the
mm) and per-thread (in the task_struct) statistical information that
are the input of the CPU follow memory algorithms in the NUMA
scheduler.

Signed-off-by: Andrea Arcangeli <aarcange@xxxxxxxxxx>
---
 include/linux/autonuma_types.h |   54 ++++++++++++++++++++++++++++++++++++++++
 1 files changed, 54 insertions(+), 0 deletions(-)
 create mode 100644 include/linux/autonuma_types.h

diff --git a/include/linux/autonuma_types.h b/include/linux/autonuma_types.h
new file mode 100644
index 0000000..818e7c7
--- /dev/null
+++ b/include/linux/autonuma_types.h
@@ -0,0 +1,54 @@
+#ifndef _LINUX_AUTONUMA_TYPES_H
+#define _LINUX_AUTONUMA_TYPES_H
+
+#ifdef CONFIG_AUTONUMA
+
+#include <linux/numa.h>
+
+struct mm_autonuma {
+	struct list_head mm_node;
+	struct mm_struct *mm;
+	unsigned long numa_fault_tot; /* reset from here */
+	unsigned long numa_fault_pass;
+	unsigned long numa_fault[0];
+};
+
+extern int alloc_mm_autonuma(struct mm_struct *mm);
+extern void free_mm_autonuma(struct mm_struct *mm);
+extern void __init mm_autonuma_init(void);
+
+struct sched_autonuma {
+	int autonuma_node;
+	bool autonuma_stop_one_cpu; /* reset from here */
+	unsigned long numa_fault_pass;
+	unsigned long numa_fault_tot;
+	unsigned long numa_fault[0];
+};
+
+extern int alloc_sched_autonuma(struct task_struct *tsk,
+				struct task_struct *orig,
+				int node);
+extern void __init sched_autonuma_init(void);
+extern void free_sched_autonuma(struct task_struct *tsk);
+
+#else /* CONFIG_AUTONUMA */
+
+static inline int alloc_mm_autonuma(struct mm_struct *mm)
+{
+	return 0;
+}
+static inline void free_mm_autonuma(struct mm_struct *mm) {}
+static inline void mm_autonuma_init(void) {}
+
+static inline int alloc_sched_autonuma(struct task_struct *tsk,
+				       struct task_struct *orig,
+				       int node)
+{
+	return 0;
+}
+static inline void sched_autonuma_init(void) {}
+static inline void free_sched_autonuma(struct task_struct *tsk) {}
+
+#endif /* CONFIG_AUTONUMA */
+
+#endif /* _LINUX_AUTONUMA_TYPES_H */
--
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