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authorJaeJoon Jung <rgbi3307@gmail.com>2025-12-15 23:34:38 -0800
committerAndrew Morton <akpm@linux-foundation.org>2026-01-20 19:24:46 -0800
commit9082f24bd3b700bfc98a24baf794cc7af8f6bcd0 (patch)
treeb14c6194f32ea817b4606ae89163635e152859fe
parent804c26b961da295bd70c86a3c9dc4bea0b09de88 (diff)
mm/damon/stat: deduplicate intervals_goal setup in damon_stat_build_ctx()
The damon_stat_build_ctx() function sets the values of intervals_goal structure members. These values are applied to damon_ctx in damon_set_attrs(). However, It is resetting the values that were already applied previously to the same values. I suggest removing this code as it constitutes duplicate execution. Link: https://patch.msgid.link/20251206011716.7185-1-rgbi3307@gmail.com Link: https://lkml.kernel.org/r/20251216073440.40891-1-sj@kernel.org Signed-off-by: JaeJoon Jung <rgbi3307@gmail.com> Reviewed-by: Enze Li <lienze@kylinos.cn> Reviewed-by: SeongJae Park <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/stat.c8
1 files changed, 0 insertions, 8 deletions
diff --git a/mm/damon/stat.c b/mm/damon/stat.c
index ed8e3629d31a..ef0a1195a584 100644
--- a/mm/damon/stat.c
+++ b/mm/damon/stat.c
@@ -173,14 +173,6 @@ static struct damon_ctx *damon_stat_build_ctx(void)
if (damon_set_attrs(ctx, &attrs))
goto free_out;
- /*
- * auto-tune sampling and aggregation interval aiming 4% DAMON-observed
- * accesses ratio, keeping sampling interval in [5ms, 10s] range.
- */
- ctx->attrs.intervals_goal = (struct damon_intervals_goal) {
- .access_bp = 400, .aggrs = 3,
- .min_sample_us = 5000, .max_sample_us = 10000000,
- };
if (damon_select_ops(ctx, DAMON_OPS_PADDR))
goto free_out;