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b=EVNd/IgAH+l+uixqDvEWYj8LtwMLeSbPVrdgNwWKZMuT4Tk+9YyMOrBXL6Rz1OtND 36rL5RN1yTU5iX28D2orhL3+gdVQWQhq8HiYx+8t0piE5FyMyUf0YkWAaNhpksHjN0 LNmsMCxKrATaXZnPRigAIhirlUwcw7PVoWncpFRGzwbH9m23RWcNHExGQPNb0SWURy DkvraZ2bsZcFrYD5vM69lBdnhd3Mrpw90haJTPOa+0UfXy64yM21oQXc/W7y+F7R6V 2JuZR+FfbStiaMgwd+Bb6gLyWUV6Wg+oXnhXmM9sH9txXb48LHpMj8hXUCiuMS8+KH 7tJYBqO2di30Q== From: SJ Park To: Andrew Morton Cc: SJ Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 1/8] mm/damon/api: introduce DAMON_FILTER_TYPE_HUGEPAGE_SIZE Date: Tue, 15 Sep 2026 07:33:50 -0700 Message-ID: <20260915143359.91472-2-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260915143359.91472-1-sj@kernel.org> References: <20260915143359.91472-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam11 X-Rspamd-Queue-Id: 658DE140010 X-Stat-Signature: uuqip7a87t9ajsrsja3qzu6q1g5qs9s8 X-Rspam-User: X-HE-Tag: 1789482848-455656 X-HE-Meta: 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 YewLgNeI 1SOc38+YshCxovaj/89NIa9jMxih6o7K8Nrsjt9RjguzhINO3kwQB55hvQS9/eGJ4Ok0QVRO3u1h9GN1iRkSszHEyHLKYbkl7rPGwLO2ORUUyESp74JQYl9uaJXAUa1knZItZgBPEi4SYmzQf2iws+C9gfdprkbTlxS2umDjVAt6wPumHGthc/2f64sBVW5d2SDMWlbqymfjORptMsZnRHo01H501FxxDFWQF4ibCqSNPkwdmO1xU9KtUKrZ3hys0vWOV9e6iZEzjB7wQ3E2w0GdHcP1QTkyziQQfCtRwpiNF8S/FAQ8qtO9wds8GqJ+FB1jjm3zUorIBpx2QHIXvhu0OJuAjyXGzTUN6NxycG1Z3sgE= Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Introduce a new data attribute probe filter type, hugepage_size. It will work for memory that is backed by a hugepage of a given size range. Add a new damon_filter_type enum DAMON_FILTER_TYPE_HUGEPAGE_SIZE to identify the type. Add two new fields in the damon_filter struct for saving the size range. Signed-off-by: SJ Park --- include/linux/damon.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/linux/damon.h b/include/linux/damon.h index 4be7d1df8e71f..bbb190b474015 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -783,12 +783,14 @@ struct damon_prep { * @DAMON_FILTER_TYPE_MEMCG: Specific memcg's pages. * @DAMON_FILTER_TYPE_PGIDLE_UNSET: Pgidle is unset. * @DAMON_FILTER_TYPE_PGIDLE_SET: Pgidle is set. + * @DAMON_FILTER_TYPE_HUGEPAGE_SIZE: Page is part of a hugepage. */ enum damon_filter_type { DAMON_FILTER_TYPE_ANON, DAMON_FILTER_TYPE_MEMCG, DAMON_FILTER_TYPE_PGIDLE_UNSET, DAMON_FILTER_TYPE_PGIDLE_SET, + DAMON_FILTER_TYPE_HUGEPAGE_SIZE, }; /** @@ -798,6 +800,8 @@ enum damon_filter_type { * @matching: Whether this filter is for the type-matching ones. * @allow: Whether the @type-@matching ones should pass this filter. * @memcg_id: Memcg id of the question if @type is DAMON_FILTER_MEMCG. + * @range_min: Minimum value of range arguments. + * @range_max: Maximum value of range arguments. */ struct damon_filter { enum damon_filter_type type; @@ -805,6 +809,10 @@ struct damon_filter { bool allow; union { u64 memcg_id; + struct { + unsigned long range_min; + unsigned long range_max; + }; }; /* private: */ /* Siblings list. */ -- 2.47.3