diff options
Diffstat (limited to 'include/linux/damon.h')
| -rw-r--r-- | include/linux/damon.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/include/linux/damon.h b/include/linux/damon.h index 2fe345adf6b2..4bd898eaf80e 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -130,6 +130,7 @@ enum damos_action { * struct damos_quota_goal - DAMOS scheme quota auto-tuning goal. * @get_score: Function for getting current score of the goal. * @get_score_arg: Parameter for @get_score + * @list: List head for siblings. * * Data structure for getting the current score of the quota tuning goal. * Calling @get_score with @get_score_arg as the parameter should return the @@ -140,6 +141,7 @@ enum damos_action { struct damos_quota_goal { unsigned long (*get_score)(void *arg); void *get_score_arg; + struct list_head list; }; /** @@ -148,6 +150,7 @@ struct damos_quota_goal { * @ms: Maximum milliseconds that the scheme can use. * @sz: Maximum bytes of memory that the action can be applied. * @goal: Quota auto-tuning goal. + * @goals: Head of quota tuning goals (&damos_quota_goal) list. * @esz: Effective size quota in bytes. * * @weight_sz: Weight of the region's size for prioritization. @@ -171,6 +174,8 @@ struct damos_quota_goal { * every @reset_interval. Then, if the new size quota is smaller than the * effective quota, it uses the new size quota as the effective quota. * + * If @goals is not empty, same action is taken for each goal of the list. + * * The resulting effective size quota in bytes is set to @esz. * * For selecting regions within the quota, DAMON prioritizes current scheme's @@ -184,6 +189,7 @@ struct damos_quota { unsigned long ms; unsigned long sz; struct damos_quota_goal goal; + struct list_head goals; unsigned long esz; unsigned int weight_sz; @@ -648,6 +654,12 @@ static inline unsigned long damon_sz_region(struct damon_region *r) #define damon_for_each_scheme_safe(s, next, ctx) \ list_for_each_entry_safe(s, next, &(ctx)->schemes, list) +#define damos_for_each_quota_goal(goal, quota) \ + list_for_each_entry(goal, "a->goals, list) + +#define damos_for_each_quota_goal_safe(goal, next, quota) \ + list_for_each_entry_safe(goal, next, &(quota)->goals, list) + #define damos_for_each_filter(f, scheme) \ list_for_each_entry(f, &(scheme)->filters, list) @@ -681,6 +693,11 @@ struct damos_filter *damos_new_filter(enum damos_filter_type type, void damos_add_filter(struct damos *s, struct damos_filter *f); void damos_destroy_filter(struct damos_filter *f); +struct damos_quota_goal *damos_new_quota_goal( + unsigned long (*get_score)(void *), void *get_score_arg); +void damos_add_quota_goal(struct damos_quota *q, struct damos_quota_goal *g); +void damos_destroy_quota_goal(struct damos_quota_goal *goal); + struct damos *damon_new_scheme(struct damos_access_pattern *pattern, enum damos_action action, unsigned long apply_interval_us, |