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b=tJgREwblfsPOxlzcswCmUBjL+skiE69803sMzc3gSdhETg2/YQKMTmiUTdKrSpIXk NOdj/igxZZbOXrL/JAkgCT3/YtMbkS8uSBPiL810CntJQ/tU7m05PHbrEEkZno5dnB WRjYU3mEpQ6zRE373T7OxkdT30znjkQ4N5WHpSyPbR63r/0upbHKttJQhRjI/p/WTF yOofkVwejRIAofsv5sqTF00LqmTd7DUrOd0bD9M08jltQoMdW6NXLtPz8u+VG/FUQ5 ZBE2ZhkelamznjhP0Cm7Y7YRfH7sDjVUVFLL7Vz5vaDereF7P85kB8UwEKDPAMdDrF 4HvoQZYRLZk6A== From: SeongJae Park To: Cc: SeongJae Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v3 26/37] mm/damon: extend damon_access_report for access-origin thread info Date: Sun, 7 Dec 2025 22:29:30 -0800 Message-ID: <20251208062943.68824-27-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20251208062943.68824-1-sj@kernel.org> References: <20251208062943.68824-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Stat-Signature: a9qq8t5jxaarm7mx1ze8biusnapoqx1b X-Rspamd-Queue-Id: 6AAEC180019 X-Rspamd-Server: rspam06 X-HE-Tag: 1765175430-284394 X-HE-Meta: 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 amlrhpIy TYO7qkHtpiBjq1Y3oL2ZFC7HNJDehOhLTHf/ak/znAykliWatH/00tw6wfJQ4Zc1KTiTREF9Cw56C8xW5IQDDxslpz9yQnIFJ4B4JG8MARykGBUbgdDeMfn6qPJtTLygCESQ8xnspyb8Wheub0QzAMlCR7lEhQKq7VWo/jefy/z72jE0U7A7AK7F9xW7chm8h7QaXAOGl3f/pfqOXT1wZPmTjhuCVmN4UqDdaMxYPqEAdLZLT0E9//3yvssa7/ABB7Bx1PnlwAY9o5GJrd/q4B5s3m78cnM+1Jpe4sXW+JjVts7jLhtg6pti2qjTpks4eVMFVmqmDAFYe6sCMgqIpc2X6lMLz/j1aS8de X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: The access reporter might be able to know which thread has made the reporting access. Extend the report data structure for the information. Signed-off-by: SeongJae Park --- include/linux/damon.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/damon.h b/include/linux/damon.h index aff34dce7c7c..80332bb2b73c 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -116,6 +116,7 @@ struct damon_target { * @addr: The start address of the accessed address range. * @size: The size of the accessed address range. * @cpu: The id of the CPU that made the access. + * @tid: The task id of the task that made the access. * * Any DAMON API callers that notified access events can report the information * to DAMON using damon_report_access(). This struct contains the reporting @@ -125,6 +126,7 @@ struct damon_access_report { unsigned long addr; unsigned long size; unsigned int cpu; + pid_t tid; /* private: */ unsigned long report_jiffies; /* when this report is made */ }; -- 2.47.3