From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 58C324B8DFD; Wed, 29 Jul 2026 14:03:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785333787; cv=none; b=XBG4tRaNOcWlb0MM4OLBTV9C6KmsWAiT/IrZd26ir7WD3DkBpGNbjQbnLU/QPjnItpuR/BpLNGVsgj/LONakQfztC70uepi7MDfJkK1YFeX/6kh3ueokrmm1cGxjM21xZ9Ga/y9zQ/kn0H3iG5xuIC4pBMC2L6cs2fHZAa32ZJw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785333787; c=relaxed/simple; bh=JZ2ls2rfwNLy89+gQkKB4MGAUvIZm/aeJ6zS1xo67pc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=qhhUKDtpeS8faWgLwTWWw9526As6IRxeBe4rmMaX0THZr5IFi1H35N7ec7ny4cOJGfniWhM5LwygZLsjVoVxkpFvAaaQC3L+X8PzHcmth26w4BPTzPZ0wsTFNj9S52UYF+zjfIMOaj9JudJUwPfMpcz5/ZCV+KVVHIVewMCuKp4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=b8ehlRJk; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="b8ehlRJk" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EED701F000E9; Wed, 29 Jul 2026 14:03:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1785333786; bh=0Gg9s4OxjyZsWduv6+bFXiwNwPGMDtkx9gG9oVB8jE8=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=b8ehlRJkGaGCxduO/cD+MG3q9sMp7cELQn7vOUCBQLA+E+Q5kYiip86CnkBduoqgm v3LRexWczG5gaCd4aWRUGgqgQAyTTOaYsd8ZDA7O/5hLyDZ4oxf7Hf/zMoPQB7b+xI UXoHLjd0PWma9IKdF7RE95HzYhT3KmElp1hnLGRNhq8P0afYf5LS8KuIplbfmQsZ15 m2J3gyqjWgf4pdnL1MUKYcN2WA0huzxLoBC64WnINF8spXBygSvS3WE+IKHCiFJltC EzIalHwHlww3aLGH6ijs/BmiVDdwaohjEbadZGjZRW1BdJ098PTFF1lucBG4eJcflb OfCuHNYOHmFww== From: SJ Park To: Cc: SJ Park , Andrew Morton , Brendan Higgins , David Gow , damon@lists.linux.dev, kunit-dev@googlegroups.com, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v1.2 08/12] mm/damon/tests/core-kunit: test overlapping ranges for set_regions() Date: Wed, 29 Jul 2026 07:02:48 -0700 Message-ID: <20260729140253.87753-9-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260729140253.87753-1-sj@kernel.org> References: <20260729140253.87753-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Commit 954157679ec3 ("mm/damon/core: disallow overlapping input ranges for damon_set_regions()") disallowed passing overlapping input ranges to damon_set_regions(). Add a kunit test case for the overlapping input. Signed-off-by: SJ Park --- mm/damon/tests/core-kunit.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/mm/damon/tests/core-kunit.h b/mm/damon/tests/core-kunit.h index ac15393a7935b..252d81c30d6f1 100644 --- a/mm/damon/tests/core-kunit.h +++ b/mm/damon/tests/core-kunit.h @@ -606,6 +606,17 @@ static void damon_test_set_regions(struct kunit *test) {.start = 42, .end = 21}, }, 1, 1, (struct damon_addr_range[]){}, 0, -EINVAL); + /* + * Regions resulting in same region after alignment should return + * -EINVAL. + */ + damon_test_set_regions_for(test, + (struct damon_addr_range[]){}, 0, + (struct damon_addr_range[]){ + {.start = 10, .end = 20}, + {.start = 20, .end = 30}, + }, 2, 4096, + (struct damon_addr_range[]){}, 0, -EINVAL); } static void damon_test_update_monitoring_result(struct kunit *test) -- 2.47.3