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b=hHL0zZ0TvAHNnHQ7Cx8FggEW9UvgVWE6BVsBXZwT60K2Z8O1FwYY3Pym8SbI1gYtu xdvlKOSPZRT6iZZrqinbtJZlAhWko57Z1GwX/inx0BJxQqSupQ+3mP7OzkILA7tW5p U472oBC98UgOEoKmsg5vxmtr/JI610fktLoLqtScM8MIof5ghrMqHdDlamRm8wJtuW qWizXPYVxtmj2Pt7AXmB5SKdWV+qzCi/cjBkkk45HJLUBdAxI70UerT0oxZI2ec9Bp 6CidYja03cW/p+ZsEsl4jWhFfkXg1bUexTzIXphxBZhgi7eFqfiWKLOkIiEsSt1XU9 Sa6TLm0CSKJTg== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , 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: [PATCH 1/2] mm/damon/tests/core-kunit: add a test for damon_commit_ctx() Date: Sat, 7 Mar 2026 11:42:20 -0800 Message-ID: <20260307194222.202075-2-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260307194222.202075-1-sj@kernel.org> References: <20260307194222.202075-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Queue-Id: 22E14100007 X-Rspamd-Server: rspam08 X-Stat-Signature: pn784dunyg1udnzfphh7697cu9zwftcx X-HE-Tag: 1772912547-479803 X-HE-Meta: U2FsdGVkX1/XZRQhu/FYazu0q9AnCfKDj3JteoZZoxW1juZ4ARUGuDqAuEM7fpbjUDD4DwjnEK/ffimgmAwEqMzOMEbiBxYFCjVbJloZfV/G3OebOqU++c3+or0OjYA+Mv27kj9qaYwX7fYHGUaCmfM5CzdfOohE4qyarGhSYmhfzh6pAkyMIrkVj1+aPmdtq2eaukvFXzW3QRkYgz3g/1m8gIk6j/8GVK5dcrx0NHydr3C8u55dVKsEdkI49p6BlPIy+uNYYFrxg+ad09CvRQDnvLYB3GOl4xMyC5bwLyPWmosXrPILtPF4mgBaa1i5T1WO6wQwvLYtqQMLMC8SrisNOzq8OApP5vNptsQbNEnjHkCGoUq8GtkWNckMm4tXJSdawv1F1KfuaWeienuBnwXRpKYVhUhVxSBJ23cLhB65f6nCr9CrO02IxyyEDnZboHx+XOvByQX7soG+vTvcGkQ2Y07rEcaLf0pJT1uBdpnyJ8COTaLQGjYyPQ3jcVEuODBhLnn3pf5oPNiAl8u/F5uNdylFYP1cbfR3y8xD73c08Kr504VurOdo8qM2FFLNKkUNdDGuTOP//iFPnb9f5PSV5EXx1K+US2apfMlHy+kEYev6VbX/PQNSuj/FIdexZDVAIcQG/KSn+TGrtM9kXTJ+Vx/hQwcy+O7Ftyn0h/8bO0q6ntxRHXbXZkR+bonsA+aPCUty4y3+Fq/m9eHEDafTtan4gF5+kVkfoIHhaLMKfvoeAhSCmVwylHz6NdCPb8qNzF9cM0GQpoavFWObmd0uRNHrNK5e0JUjQceyNLSUt98+U1rEWGwXUvFMjeFEtI9jE/AIDndMi/SKCe2xz+mcV3MHamn7D4qLm6VNOK78+0n3x/PeAqweQhm673qNs4TLg78DVC/ccG6nX3O/+hNzj/10fjfeNbUqctEFWziMHgLQTaQqRQfmrQHxjbZajxbex6dDpVKL+QTXuS0 kW3M6vpQ PjKIGMjQhSzU2nHRqeUYMUk8FQnNh+5/jwr9HC4MK1vZQQzUhNlg8jzRIFwY7oD2bqAHZmnOgqVEvOPGiByc3k0ryp5D+inoq5l/nEBbnQ/BHhlSw8F6FsHeLPgglLB9O79KtBZxD0NrIiMYvQPZIlQMfmcywz5A9T+MP0jhyFRIYDYE9H3uQnFxEBLFyov7af9Anh2G2pwVfjTM6MSZHXAKwHsGndYJum/UCUibYpoyMCiEroZmSEmByu0JRhb+iBq0DVbiL3WEOkjQittgDaYmzEQ== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Add a kunit test for confirming the change that is made on commit c80f46ac228b ("mm/damon/core: disallow non-power of two min_region_sz") functions as expected. Signed-off-by: SeongJae Park --- mm/damon/tests/core-kunit.h | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/mm/damon/tests/core-kunit.h b/mm/damon/tests/core-kunit.h index 44a983fca9501..65181c6dac1b4 100644 --- a/mm/damon/tests/core-kunit.h +++ b/mm/damon/tests/core-kunit.h @@ -1060,6 +1060,27 @@ static void damon_test_commit_target_regions(struct kunit *test) (unsigned long[][2]) {{3, 8}, {8, 10}}, 2); } +static void damon_test_commit_ctx(struct kunit *test) +{ + struct damon_ctx *src, *dst; + + src = damon_new_ctx(); + if (!src) + kunit_skip(test, "src alloc fail"); + dst = damon_new_ctx(); + if (!dst) { + damon_destroy_ctx(src); + kunit_skip(test, "dst alloc fail"); + } + /* Only power of two min_region_sz is allowed. */ + src->min_region_sz = 4096; + KUNIT_EXPECT_EQ(test, damon_commit_ctx(dst, src), 0); + src->min_region_sz = 4095; + KUNIT_EXPECT_EQ(test, damon_commit_ctx(dst, src), -EINVAL); + damon_destroy_ctx(src); + damon_destroy_ctx(dst); +} + static void damos_test_filter_out(struct kunit *test) { struct damon_target *t; @@ -1316,6 +1337,7 @@ static struct kunit_case damon_test_cases[] = { KUNIT_CASE(damos_test_commit_pageout), KUNIT_CASE(damos_test_commit_migrate_hot), KUNIT_CASE(damon_test_commit_target_regions), + KUNIT_CASE(damon_test_commit_ctx), KUNIT_CASE(damos_test_filter_out), KUNIT_CASE(damon_test_feed_loop_next_input), KUNIT_CASE(damon_test_set_filters_default_reject), -- 2.47.3