[PATCH 09/35] autonuma: mm_autonuma and sched_autonuma data structures

Andrea Arcangeli
2012-05-25T17:10:21Z

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@redhat.com>
---
include/linux/autonuma_types.h | 57 ++++++++++++++++++++++++++++++++++++++++
1 files changed, 57 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..65b175b
--- /dev/null
+++ b/include/linux/autonuma_types.h
@@ -0,0 +1,57 @@
+#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);
+
+#define SCHED_AUTONUMA_FLAG_STOP_ONE_CPU (1<<0)
+#define SCHED_AUTONUMA_FLAG_NEED_BALANCE (1<<1)
+
+struct sched_autonuma {
+ int autonuma_node;
+ unsigned int autonuma_flags; /* zeroed 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 */