include/linux/sched/sysctl.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _LINUX_SCHED_SYSCTL_H
   3 #define _LINUX_SCHED_SYSCTL_H
   4
   5 #include <linux/types.h>
   6
   7 struct ctl_table;
   8
   9 #ifdef CONFIG_DETECT_HUNG_TASK
  10 /* used for hung_task and block/ */
  11 extern unsigned long sysctl_hung_task_timeout_secs;
  12 #else
  13 /* Avoid need for ifdefs elsewhere in the code */
  14 enum { sysctl_hung_task_timeout_secs = 0 };
  15 #endif
  16
  17 enum sched_tunable_scaling {
  18         SCHED_TUNABLESCALING_NONE,
  19         SCHED_TUNABLESCALING_LOG,
  20         SCHED_TUNABLESCALING_LINEAR,
  21         SCHED_TUNABLESCALING_END,
  22 };
  23
  24 #define NUMA_BALANCING_DISABLED         0x0
  25 #define NUMA_BALANCING_NORMAL           0x1
  26 #define NUMA_BALANCING_MEMORY_TIERING   0x2
  27
  28 #ifdef CONFIG_NUMA_BALANCING
  29 extern int sysctl_numa_balancing_mode;
  30 extern unsigned int sysctl_numa_balancing_promote_rate_limit;
  31 #else
  32 #define sysctl_numa_balancing_mode      0
  33 #endif
  34
  35 int sysctl_numa_balancing(struct ctl_table *table, int write, void *buffer,
  36                 size_t *lenp, loff_t *ppos);
  37
  38 #endif /* _LINUX_SCHED_SYSCTL_H */