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From: SeongJae Park <sj@kernel.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: SeongJae Park <sj@kernel.org>,
	damon@lists.linux.dev, kernel-team@meta.com,
	linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH 3/6] mm/damon/lru_sort: use param_ctx correctly
Date: Sun, 14 Sep 2025 18:58:04 -0700	[thread overview]
Message-ID: <20250915015807.101505-4-sj@kernel.org> (raw)
In-Reply-To: <20250915015807.101505-1-sj@kernel.org>

damon_lru_sort_apply_parameters() allocates a new DAMON context, stages
user-specified DAMON parameters on it, and commits to running DAMON
context at once, using damon_commit_ctx().  The code is, however,
directly updating the monitoring attributes of the running context. This
doesn't cause a real user problem but apparently this is an
unintentional mistake that can cause code review confusions and future
real problems.  Fix the wrong use of the parameter context.

Fixes: a30969436428 ("mm/damon/lru_sort: use damon_commit_ctx()")
Signed-off-by: SeongJae Park <sj@kernel.org>
---
 mm/damon/lru_sort.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/damon/lru_sort.c b/mm/damon/lru_sort.c
index 14d31009c09e..ab6173a646bd 100644
--- a/mm/damon/lru_sort.c
+++ b/mm/damon/lru_sort.c
@@ -219,7 +219,7 @@ static int damon_lru_sort_apply_parameters(void)
 		goto out;
 	}
 
-	err = damon_set_attrs(ctx, &damon_lru_sort_mon_attrs);
+	err = damon_set_attrs(param_ctx, &damon_lru_sort_mon_attrs);
 	if (err)
 		goto out;
 
-- 
2.39.5


  parent reply	other threads:[~2025-09-15  1:58 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-09-15  1:58 [PATCH 0/6] mm/damon: misc fixups and improvements for 6.18 SeongJae Park
2025-09-15  1:58 ` [PATCH 1/6] mm/damon/core: reset age if nr_accesses changes between non-zero and zero SeongJae Park
2025-09-15 14:51   ` Joshua Hahn
2025-09-15 18:26     ` SeongJae Park
2025-09-16  3:52       ` Andrew Morton
2025-09-15  1:58 ` [PATCH 2/6] mm/damon/core: set effective quota on first charge window SeongJae Park
2025-09-15  1:58 ` SeongJae Park [this message]
2025-09-15 15:05   ` [PATCH 3/6] mm/damon/lru_sort: use param_ctx correctly Joshua Hahn
2025-09-15 18:43     ` SeongJae Park
2025-09-16  3:04       ` SeongJae Park
2025-09-15  1:58 ` [PATCH 4/6] Docs/mm/damon/maintainer-profile: update community meetup for reservation requirements SeongJae Park
2025-09-15 15:07   ` Joshua Hahn
2025-09-15 18:44     ` SeongJae Park
2025-09-15  1:58 ` [PATCH 5/6] Docs/admin-guide/mm/damon/start: add --target_pid to DAMOS example command SeongJae Park
2025-09-15 15:08 ` [PATCH 0/6] mm/damon: misc fixups and improvements for 6.18 Joshua Hahn
2025-09-15 15:25   ` Joanne Koong
2025-09-15 15:28     ` Joshua Hahn
2025-09-15 18:06       ` SeongJae Park

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