diff options
| author | SeongJae Park <sj@kernel.org> | 2024-02-19 22:44:22 +0300 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2024-02-24 04:48:28 +0300 |
| commit | 06ba5b309ed870cf1a0fedc611d0e7fbb6425a2d (patch) | |
| tree | b02ec64e89428787cf49dc99b81e12c10c5e5ef6 /mm/damon | |
| parent | 89d347a545a704e0bd4fc61f9aea956d71bc72d2 (diff) | |
| download | linux-06ba5b309ed870cf1a0fedc611d0e7fbb6425a2d.tar.xz | |
mm/damon/core: let goal specified with only target and current values
DAMOS quota auto-tuning feature let users to set the goal by providing a
function for getting the current score of the tuned quota. It allows
flexible goal setup, but only simple user-set quota is currently being
used. As a result, the only user of the DAMOS quota auto-tuning is using
a silly void pointer casting based score value passing function. Simplify
the interface and the user code by letting user directly set the target
and the current value.
Link: https://lkml.kernel.org/r/20240219194431.159606-12-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/damon')
| -rw-r--r-- | mm/damon/core.c | 9 | ||||
| -rw-r--r-- | mm/damon/sysfs-schemes.c | 10 |
2 files changed, 7 insertions, 12 deletions
diff --git a/mm/damon/core.c b/mm/damon/core.c index 7b06d926c552..907f467fc8c0 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -300,15 +300,15 @@ 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) + unsigned long target_value, unsigned long current_value) { struct damos_quota_goal *goal; goal = kmalloc(sizeof(*goal), GFP_KERNEL); if (!goal) return NULL; - goal->get_score = get_score; - goal->get_score_arg = get_score_arg; + goal->target_value = target_value; + goal->current_value = current_value; INIT_LIST_HEAD(&goal->list); return goal; } @@ -1132,7 +1132,8 @@ static unsigned long damos_quota_score(struct damos_quota *quota) damos_for_each_quota_goal(goal, quota) highest_score = max(highest_score, - goal->get_score(goal->get_score_arg)); + goal->current_value * 10000 / + goal->target_value); return highest_score; } diff --git a/mm/damon/sysfs-schemes.c b/mm/damon/sysfs-schemes.c index 7bf94b1ed6f7..50218a7bfa0a 100644 --- a/mm/damon/sysfs-schemes.c +++ b/mm/damon/sysfs-schemes.c @@ -1882,11 +1882,6 @@ static int damon_sysfs_set_scheme_filters(struct damos *scheme, return 0; } -static unsigned long damos_sysfs_get_quota_score(void *arg) -{ - return (unsigned long)arg; -} - static int damos_sysfs_set_quota_score( struct damos_sysfs_quota_goals *sysfs_goals, struct damos_quota *quota) @@ -1904,9 +1899,8 @@ static int damos_sysfs_set_quota_score( if (!sysfs_goal->target_value) continue; - goal = damos_new_quota_goal(damos_sysfs_get_quota_score, - (void *)(sysfs_goal->current_value * 10000 / - sysfs_goal->target_value)); + goal = damos_new_quota_goal(sysfs_goal->target_value, + sysfs_goal->current_value); if (!goal) return -ENOMEM; damos_add_quota_goal(quota, goal); |