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h=From:To:Cc:Subject:Date; b=ak/3Q/dGAKBDmSkWap5l35SOzKFLEL7ad8KlNOV8/qus+ORbN0o3Eaw794B3/ZXA4 9uxzrXajXpH/gcawEQ9zXo4uSa6VjDstLLamoq5Xjmp7rDpYkbWmq5hBouwJPPjrlQ wMedPyS0sMLTn1Rct6RBb1thKvxCXtRosu08txyl6bZLuAzCoHv7m6sVf1yPFCgXXW nqD2xXgfD6By09eH4rpsEgWH2YC8o+EwRHoYiHi2xeiMo4WfPR5P8y08FuhoJeuyu/ yuM8N3Sd99qM4pXHSykE9B61Og3/16vd3a7iCJ+/On2ruBHffA2O3hlkRnMtCZck+r cMLJng3C+UxuQ== From: SJ Park To: Cc: SJ Park , stable@vger.kernel.org, Andrew Morton , Brendan Higgins , David Gow , Quanmin Yan , Ravi Jonnalagadda , 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 v1.3 0/4] mm/damon: fix misc bugs in kunit, quota goals and sysfs refresh_ms Date: Fri, 28 Aug 2026 11:36:44 -0700 Message-ID: <20260828183649.71192-1-sj@kernel.org> X-Mailer: git-send-email 2.47.3 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: 218FC10000A X-Stat-Signature: utwxusnkh3xs7qr34qaom17icc4ktztj X-HE-Tag: 1787942218-459923 X-HE-Meta: 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 Ksrmr/gS 4Y85r1L64/AeDcprCxUvy7rRvZ/PNUKTnHm1U+U8hHEg3SL46nlF5rPn6lylnS8+bbY12rze+7860uyatgJ/rGAwSJD30Q6gy1gKAFd/EGcfzNOARpEaKxV8acw2BjVYprdh7lnc/hgK9bjadSP9iyYmsr+HINB3oSBxly/w5mH9IALyXN+y2zAr13X3omVuBGBiWtKOoY98P2+4e57tH4d+VEY/626Lr7repJkG9snOST9K2jsCr87tO0jSi6eYQ5RZJ1vrKLBt2uOsp7dSWSfMaZYIvkdwXycxJeQbLssVCvV8woWeseogO9wakhR09RH2CJreuXNFSXBMhCE8LBeJQyD8nR+FVS7KlnL8KyZ+kEOE= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: DAMOS quota goals commit unit test is mistakenly not testing a test case that was designed to test. DAMOS quota goals and DAMON sysfs refresh_ms file have bugs that can produce non critical but still unexpected behaviors. Fix the bugs. Patch 1 fixes the DAMOS quota goals commit unit test to cover a mistakenly uncovered case. Patches 2 and 3 fix the bugs in DAMOS PSI goal initialization and eligible_mem_bp online commit, respectively. Patch 4 fixes the bug in DAMON sysfs refresh_ms file handling. Changes from RFC v1.2 - RFC v1.2: https://lore.kernel.org/20260828014659.121058-1-sj@kernel.org - Fix last_psi_total underflow. Changes from RFC v1.1 - RFC v1.1: https://lore.kernel.org/20260827134429.123023-1-sj@kernel.org - Fix quota goals commit unit test that was mistakenly missing a test case. - Initialize last_psi_total as uninitialized at the beginning. - Correct kunit test for changed last_psi_total initialization behavior. Changes from RFC - RFC: https://lore.kernel.org/20260827042920.93580-1-sj@kernel.org (Mistakenly missed RFC tag) - Fix build error. - Add eligible_mem_bp nid commit fix. SJ Park (4): mm/damon/tests/core-kunit: test committing psi goal to psi goal mm/damon/core: handle uninitialized damos_quota_goal->last_psi_total mm/damon/core: copy nid for eligible_mem_bp damos quota goal commit mm/damon/sysfs: set next refresh jiffies per sysfs context mm/damon/core.c | 16 ++++++++++++++-- mm/damon/sysfs.c | 11 +++++------ mm/damon/tests/core-kunit.h | 16 ++++++++++------ 3 files changed, 29 insertions(+), 14 deletions(-) base-commit: f508ed0a3bc67ac2a17ba4eaa7f219a95f6b3954 -- 2.47.3