include/linux/compaction.h

   1 #ifndef _LINUX_COMPACTION_H
   2 #define _LINUX_COMPACTION_H
   3
   4 /* Return values for compact_zone() */
   5 #define COMPACT_CONTINUE        0
   6 #define COMPACT_PARTIAL         1
   7 #define COMPACT_COMPLETE        2
   8
   9 #ifdef CONFIG_COMPACTION
  10 extern int sysctl_compact_memory;
  11 extern int sysctl_compaction_handler(struct ctl_table *table, int write,
  12                         void __user *buffer, size_t *length, loff_t *ppos);
  13 #endif /* CONFIG_COMPACTION */
  14
  15 #if defined(CONFIG_COMPACTION) && defined(CONFIG_SYSFS) && defined(CONFIG_NUMA)
  16 extern int compaction_register_node(struct node *node);
  17 extern void compaction_unregister_node(struct node *node);
  18
  19 #else
  20
  21 static inline int compaction_register_node(struct node *node)
  22 {
  23         return 0;
  24 }
  25
  26 static inline void compaction_unregister_node(struct node *node)
  27 {
  28 }
  29 #endif /* CONFIG_COMPACTION && CONFIG_SYSFS && CONFIG_NUMA */
  30
  31 #endif /* _LINUX_COMPACTION_H */