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b=GXMKqhsQ5FoHGqmoLFZYr3lIcs2q57qa/lQj1+BBzHZ1w2UubNCRvee/ZMw/MzLxb kXtHOuZXZneHfiZIyWEP785KCR9MZFl4ck3t6TFIllQrSyoM0UmRZQfkuQcDIdllXe jS28y9pkO4ol6pOBWw47bC6B04X/7xAGdFOn6ljQOO7ao79j/i3/jIXzX8/JTatk4j Wm2HswnkcWuDwZBTKm6j1Z0WhWVu3C+mov2cf2wMDvTQu8+RJnOHUqWFzM9v7d113y DZMbbP9WwWbpUl7Qx0ismbDLp9ccDL8gbnn/kVSVGxKKs9lDNvkWoQz3wrDfkihcin 9OvrzP3HkxDEQ== From: SeongJae Park To: Cc: SeongJae Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH 06/19] mm/damon/core: introduce damon_ops->apply_probes Date: Sun, 26 Apr 2026 13:52:07 -0700 Message-ID: <20260426205222.93895-7-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260426205222.93895-1-sj@kernel.org> References: <20260426205222.93895-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam05 X-Rspamd-Queue-Id: 8102C40003 X-Stat-Signature: qx9c6nbm356yasdgn9oxzcifmwip5ydc X-HE-Tag: 1777236757-886947 X-HE-Meta: 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 naxyzmY1 +KFAfO7PvgvJWLs5foNkorr4AFqwwbdwp3CP+9tQwj0vGL++qjcpjLZ4RAeBDijmbtLBJgGyhArZR70O8bGzmNhqJW62NNhmx7xNzKUaUrYotZx7fahQNUrADHlGdmLoMQT6zGxGAmHv9F3v/doKaeR2ha30SzqEZ548DBzxK+m+0NeOuu+P/gUAs5IEIISpmj/r1ffkpUCOkLXtfUNj0GSHiK72uwRAz9pCIOyMORigoYf8t3FrOis8r3g/MQbQBsdxBArHE3KzotzQzS1ZaEU+jSkRAt6ULTUhV5qiJjSIRJxUB00zbQfaiaOCuRb/u2olCQhvJeQhtr0G4hBlEx6PQ4ZFxixzlx0bTph1Psx7OWGFu37ZA7qGcofZ6/fEFdm3x 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 766d6daa52a3e..4266fcb121a33 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -632,6 +632,7 @@ 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. @@ -675,6 +676,7 @@ 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