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bh=CRNoWJlEPylYeAv7EKMrmhsVza1n4tj76p/bqvx4fJA=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=RQJ0siWssrYWvg/DGI5+vQwOu7nENn2+wcgZV/fjpbB4EuWj7PszjrEKwKbU3ibkT /bvopnQnWIleF5nL8HOX0wGPRdtLSo0Vw05get+n+DV6yA9blh8EAIeBX2hXh8jGxw P/Xi2iu9sgB0QpTZYh1ci1g6TD36vQD+bgR4l4Jol5dNKr4bDXLhbStD3lUGtGozMk aCKFQ6LiqlYE3BA3j55pXTcmPmkikxvTfJzoq9hzX4vDk5DdImd+IO/w6FcSQZpK05 bHp+C1uYYFKRVasUmlTn9z2WPo73H73W+ASKXakuNWieK9buVSsw4+383suNdFwWFo BdtXduN5bN1tA== From: SeongJae Park To: Cc: SeongJae Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v1.2 03/14] samples/damon/mtier: replace damon_add_region() with damon_set_regions() Date: Thu, 21 May 2026 07:34:13 -0700 Message-ID: <20260521143428.83157-4-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260521143428.83157-1-sj@kernel.org> References: <20260521143428.83157-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Queue-Id: 2E1001C0007 X-Rspamd-Server: rspam03 X-Stat-Signature: ch4suu8ux5jro1tuyqws695bhqqsrqzk X-HE-Tag: 1779374079-779672 X-HE-Meta: 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 w+Kd2Ujv x83/r68ZVEsOU9PyFATPuALqHaS9Jf+xwbN8anuJorG26zbluurftJuJXcJ4sf6jd8yGqyMLH5ni73avBnzr3HcjEuONo8VZWSXl+tRQ2do9z5leD9ts02lBhFFVJcojImbFGnLaSlTsUpdvTz3Auw2Ywzul0QltdyWgCzl1b4YuRyCEZLXIaQwe7maLPRMSBQ3uIfg/Rfgv19UfyFWUNAewOfojjUG5TIgF4sEHX5CNtTAnJnVAlGCWmhVKI1mOHHbRit0t7VxaBbA4HGubGVDXPS4WFs7CvBKDpfbTpji1U4CoDUddHelbuXeKfpcBpZFo30K45+AYepwiq+fs58C7QMdJucdaxgj9R Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: mtier DAMON sample module and DAMON virtual address operation set (vaddr) unit tests are using damon_add_region() for setup of DAMON monitoring target region boundaries setup. But, damon_set_regions() is designed for exactly the purpose. All other DAMON API callers use the function for the purpose. Replace damon_add_region() usage in mtier sample module with damon_set_regions(), for unifying the use case and reducing the maintenance cost. Signed-off-by: SeongJae Park --- samples/damon/mtier.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/samples/damon/mtier.c b/samples/damon/mtier.c index 775838a23d935..eb1143de8df17 100644 --- a/samples/damon/mtier.c +++ b/samples/damon/mtier.c @@ -75,11 +75,11 @@ static struct damon_ctx *damon_sample_mtier_build_ctx(bool promote) struct damon_ctx *ctx; struct damon_attrs attrs; struct damon_target *target; - struct damon_region *region; struct damos *scheme; struct damos_quota_goal *quota_goal; struct damos_filter *filter; struct region_range addr; + struct damon_addr_range range; int ret; ctx = damon_new_ctx(); @@ -120,10 +120,12 @@ static struct damon_ctx *damon_sample_mtier_build_ctx(bool promote) addr.end = promote ? node1_end_addr : node0_end_addr; } - region = damon_new_region(addr.start, addr.end); - if (!region) + range.start = addr.start; + range.end = addr.end; + + ret = damon_set_regions(target, &range, 1, DAMON_MIN_REGION_SZ); + if (ret) goto free_out; - damon_add_region(region, target); scheme = damon_new_scheme( /* access pattern */ -- 2.47.3