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b=m4plHV+zvCHT+StkDPdBBZvBwiNjctrHdOjsCcnY0UeVvnFiaupCWwQXzPFzG0sXr /cA71aZ3g+I7zcPohcXC27wMJoQRyo0wsqFY7tdl87FjyCfhPa2+BryYJldO6hD5Ed zD5W1sLC2YchBOmHBT5Q+3X0cE4qpOfR4aZbSRsKrgTly3VzgahdpqJE6dHCKxQF+y 05RdKOqONQuUcndlANvUKb9RQFV1Tg9BIYJX1HbQN/8AQm7nRpGUoW8jXMRs20qo9s GnuYeJn44Z1yN+zFk+SncLuBAwQ+18N8RyQR9PyUtVpGkVowfNVDspkFYaORGpdNDa 0gcPT9ZxyPmUQ== From: SeongJae Park To: Cc: SeongJae Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v2.2 06/28] mm/damon/core: introduce damon_ops->apply_probes Date: Thu, 14 May 2026 17:44:07 -0700 Message-ID: <20260515004433.128933-7-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260515004433.128933-1-sj@kernel.org> References: <20260515004433.128933-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: F3DB64000A X-Rspam-User: X-Stat-Signature: uco67p3qheuo8xot9jb83aq8zeahna5p X-HE-Tag: 1778805888-238101 X-HE-Meta: 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 kEtQ1dGk 47Z8s0dUChfINRz1GdlFY20HSWIjNjTXLivimSQxw7+06gJMi1Y8zkURmLSh5gciMQZAniy5b3NG6wTF9aNxuNz1W8uL6R9t43hHtqZPr5bjT2Yto+eGQlp/FdC2hPixdFpLb/urMXS7jPBRK7CKFEKOych8z7Dp3960SikScMldK3Lz2CRAYDZKptNSpQOFvTivjJgVWmUYyqDBjb/AZi6fz5/tl+KibfkRNfKIvbqJZQ4QtKaoGH4fmqjZiRvpC3MF0E7FNnvrKTKOmqcWsiTbQU1lsko1zqngj3XbsocS5sGP8mJYbllSce4Oq9LxTLcTwYa4eOxc3LOH0TTtflBsnp+Ys+XDhn0Ki61mLl8KrjZ88WViOL2Rb75kXI49FjiVH Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Extend damon_operations struct with a new callback, namely apply_probe. The callback will be invoked for data attributes monitoring. More specifically, the callback will apply damon_probe objects to each region and update the per-region per-probe counters for the number of encountered probe-positive samples. 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 bf78ad849a9be..36a1162b6185a 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -621,6 +621,7 @@ enum damon_ops_id { * @update: Update operations-related data structures. * @prepare_access_checks: Prepare next access check of target regions. * @check_accesses: Check the accesses to target regions. + * @apply_probes: Apply probes for each region. * @get_scheme_score: Get the score of a region for a scheme. * @apply_scheme: Apply a DAMON-based operation scheme. * @target_valid: Determine if the target is valid. @@ -664,6 +665,7 @@ struct damon_operations { void (*update)(struct damon_ctx *context); void (*prepare_access_checks)(struct damon_ctx *context); unsigned int (*check_accesses)(struct damon_ctx *context); + void (*apply_probes)(struct damon_ctx *context); int (*get_scheme_score)(struct damon_ctx *context, struct damon_region *r, struct damos *scheme); unsigned long (*apply_scheme)(struct damon_ctx *context, -- 2.47.3