tmakin/ack-tegra
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

mm/damon/core: replace per-quota regions priority histogram buffer usage with per-context one

Browse Source 
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>
This commit is contained in:
SeongJae Park
2024-08-25 21:23:21 -07:00
committed by Andrew Morton
parent b7315fbb64
commit 304b95847f
1 changed files with 6 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mm/damon/core.c
+6 -3
View File
@@ -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;
}