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b=V2dGFUnX32iH54X59LjRu3KD43H08ytdjfiq+W5IUFp+yIkbUrYs1F2dfRnIE8BRQ Iu52W7c30k2K/2h5/Xh4ad7jBJutRyAtzYrrZr8zlSzC95R6NQ9o/FOs4mp56nnIw5 B7oYHEj2YhBHmZoJcN0Q88Dzzu0+CpeKBSI8z9J3UqJQ/6JQ2jkKens0bs+0JktGRl 7clUKJP6ZebDV3pHXLd9+V9AP2sHhWkuSS/ELDpki0GFjQyQWfp4n36Z7vWW/OAlwo utdNUJ+RcKkr40FZ/BjP+1R6sseXmqBZbKhEzOyCJRhWE4RdngTUCA2nzBCVJynYA7 8/QKsaoI7XWQQ== 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 06/10] mm/damon/tests/core-kunit: test overlapping ranges for set_regions() Date: Mon, 27 Jul 2026 22:28:05 -0700 Message-ID: <20260728052811.192712-7-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260728052811.192712-1-sj@kernel.org> References: <20260728052811.192712-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 0568440009 X-Stat-Signature: s7fwccutdyfggkwzzyja3w9y68qrntte X-Rspam-User: X-HE-Tag: 1785216498-423938 X-HE-Meta: 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 7GSSU7VK R6MdgOWVzrmNjtdTfLhgfye5/TwwFni78rDXC9/jFHhv9fTulSXBLqxnZAlRArTBasiYWy2yRN6tYnmZ9dta/xlrLPjwGLv7EbXaIvrEEUwOrBn4mfzfcVfZm/GnTwqVlrjJqIZAP9kJQYAaVq/Z1eunetUpFDB91PGdkMVf326ILcxWjQ+z3tgeHGusfiw5CDfkDXTeyPcbcNwGMv7FZiIZIWCacU8ePZD83tR9yKlnMUNPhYAzizxOV4dF1Ilpx1XcruUvomDqlG1lUk1CzkJ7Aig== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: 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..3041b8288ec26 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 alingment 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