mm/damon/sysfs-common.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Common Primitives for DAMON Sysfs Interface
   4  *
   5  * Author: SeongJae Park <sj@kernel.org>
   6  */
   7
   8 #include <linux/damon.h>
   9 #include <linux/kobject.h>
  10
  11 extern struct mutex damon_sysfs_lock;
  12
  13 struct damon_sysfs_ul_range {
  14         struct kobject kobj;
  15         unsigned long min;
  16         unsigned long max;
  17 };
  18
  19 struct damon_sysfs_ul_range *damon_sysfs_ul_range_alloc(
  20                 unsigned long min,
  21                 unsigned long max);
  22 void damon_sysfs_ul_range_release(struct kobject *kobj);
  23
  24 extern const struct kobj_type damon_sysfs_ul_range_ktype;
  25
  26 /*
  27  * schemes directory
  28  */
  29
  30 struct damon_sysfs_schemes {
  31         struct kobject kobj;
  32         struct damon_sysfs_scheme **schemes_arr;
  33         int nr;
  34 };
  35
  36 struct damon_sysfs_schemes *damon_sysfs_schemes_alloc(void);
  37 void damon_sysfs_schemes_rm_dirs(struct damon_sysfs_schemes *schemes);
  38
  39 extern const struct kobj_type damon_sysfs_schemes_ktype;
  40
  41 int damon_sysfs_add_schemes(struct damon_ctx *ctx,
  42                 struct damon_sysfs_schemes *sysfs_schemes);
  43
  44 void damon_sysfs_schemes_update_stats(
  45                 struct damon_sysfs_schemes *sysfs_schemes,
  46                 struct damon_ctx *ctx);
  47
  48 int damon_sysfs_schemes_update_regions_start(
  49                 struct damon_sysfs_schemes *sysfs_schemes,
  50                 struct damon_ctx *ctx, bool total_bytes_only);
  51
  52 void damos_sysfs_mark_finished_regions_updates(struct damon_ctx *ctx);
  53
  54 bool damos_sysfs_regions_upd_done(void);
  55
  56 int damon_sysfs_schemes_update_regions_stop(struct damon_ctx *ctx);
  57
  58 int damon_sysfs_schemes_clear_regions(
  59                 struct damon_sysfs_schemes *sysfs_schemes,
  60                 struct damon_ctx *ctx);
  61
  62 int damos_sysfs_set_quota_scores(struct damon_sysfs_schemes *sysfs_schemes,
  63                 struct damon_ctx *ctx);
  64
  65 void damos_sysfs_update_effective_quotas(
  66                 struct damon_sysfs_schemes *sysfs_schemes,
  67                 struct damon_ctx *ctx);