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authorSeongJae Park <sj@kernel.org>2024-08-25 21:23:21 -0700
committerAndrew Morton <akpm@linux-foundation.org>2024-09-09 16:39:00 -0700
commit304b95847f2852070a692beef10c98f5e36af631 (patch)
treed613e55c634f5d85426d80c59aae05f43c687427
parentb7315fbb64736acad3cd33851884b222b00dc0f4 (diff)
mm/damon/core: replace per-quota regions priority histogram buffer usage with per-context one
Replace the usage of per-quota region priorities histogram buffer with the per-context one. After this change, the per-quota histogram is not used by anyone, and hence it is ready to be removed. Link: https://lkml.kernel.org/r/20240826042323.87025-3-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--mm/damon/core.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/mm/damon/core.c b/mm/damon/core.c
index 40266d85eebf..8b99c5a99c38 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -1582,13 +1582,16 @@ static void damos_adjust_quota(struct damon_ctx *c, struct damos *s)
return;
/* Fill up the score histogram */
- memset(quota->histogram, 0, sizeof(quota->histogram));
+ memset(c->regions_score_histogram, 0,
+ sizeof(*c->regions_score_histogram) *
+ (DAMOS_MAX_SCORE + 1));
damon_for_each_target(t, c) {
damon_for_each_region(r, t) {
if (!__damos_valid_target(r, s))
continue;
score = c->ops.get_scheme_score(c, t, r, s);
- quota->histogram[score] += damon_sz_region(r);
+ c->regions_score_histogram[score] +=
+ damon_sz_region(r);
if (score > max_score)
max_score = score;
}
@@ -1596,7 +1599,7 @@ static void damos_adjust_quota(struct damon_ctx *c, struct damos *s)
/* Set the min score limit */
for (cumulated_sz = 0, score = max_score; ; score--) {
- cumulated_sz += quota->histogram[score];
+ cumulated_sz += c->regions_score_histogram[score];
if (cumulated_sz >= quota->esz || !score)
break;
}