linux-kernel - [PATCH 2/2] mm/damon/core: fix ignored quota goals and filters of newly committed schemes

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Message-Id: <20241222231222.85060-3-sj@kernel.org>
Date: Sun, 22 Dec 2024 15:12:22 -0800
From: SeongJae Park <sj@...nel.org>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: SeongJae Park <sj@...nel.org>,
	damon@...ts.linux.dev,
	linux-mm@...ck.org,
	linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Subject: [PATCH 2/2] mm/damon/core: fix ignored quota goals and filters of newly committed schemes

damon_commit_schemes() ignores quota goals and filters of the newly
committed schemes.  This makes users confused about the behaviors.
Correctly handle those inputs.

Fixes: 9cb3d0b9dfce ("mm/damon/core: implement DAMON context commit function")
Cc: <stable@...r.kernel.org>
Signed-off-by: SeongJae Park <sj@...nel.org>
---
 mm/damon/core.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/mm/damon/core.c b/mm/damon/core.c
index 931e8e4b1333..5192ee29f6cf 100644
--- a/mm/damon/core.c
+++ b/mm/damon/core.c
@@ -868,6 +868,11 @@ static int damon_commit_schemes(struct damon_ctx *dst, struct damon_ctx *src)
 				NUMA_NO_NODE);
 		if (!new_scheme)
 			return -ENOMEM;
+		err = damos_commit(new_scheme, src_scheme);
+		if (err) {
+			damon_destroy_scheme(new_scheme);
+			return err;
+		}
 		damon_add_scheme(dst, new_scheme);
 	}
 	return 0;
-- 
2.39.5