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bh=Gmq/rX+sVM9Hs+BxObGYka5NbSCER5H2QYTBCAxyvwk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=Hiyb8acwXAgqxym9KzuWX0MDr2xlqwBXaRVpzjPy+RObadhlgphPAVk3CXx2xBKgS 4TocPLG1FHRPYCvsShf4QeSoF21GhvYnqDTW4HqRkOPL/2nKwZ9+krR6p2chCztSqK 92TUv82mRYZcUdsDm1c871fRyaUM2/PJ9xReSRwaoo8ZCM0usYTXmkuzI8PT5FV47y 4qJP3WMB+gkeNlQxlO98c/NgHWKFtIGSwqKcuoPQqgUjiBiiWeL13QWsU4Q/J7Cgnp iNLf5R57XyJwdt8aocOMHJ1RrlWij0nDLcIqXfGj9Apu98dAw/4rpsz7QGu6BHUTHo JbGkI8CgQ+eyQ== From: SJ Park To: Cc: SJ Park , Andrew Morton , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v3 5/8] mm/damon/sysfs: support hugepage_size probe filter Date: Mon, 14 Sep 2026 19:09:24 -0700 Message-ID: <20260915020929.102953-6-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260915020929.102953-1-sj@kernel.org> References: <20260915020929.102953-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Server: rspam10 X-Rspamd-Queue-Id: A59164000A X-Stat-Signature: fiigg4w5rnb7nn8cp3r86d9tcqqw64wn X-Rspam-User: X-HE-Tag: 1789438180-837648 X-HE-Meta: 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 lyfuxD7i dtsGVbg9bq3KHWhuywCdmHitWSXYmC3qyyiBrQClbVefA4CkVHhV+9xA1kfTGdHFsKFOjuu7tUzhbffzsc8wOYQ0OlQo07t/3yu9WZKDtj6kMjok512ZMimJWmS3CYmH+iZR3Gs6g8811SdQMeSG7+pgdWeCwCppi1XJ4/Mgj/M4hEKM+V5lukrejhqDiyhukEPpZBx2U4QCincNke+kkJ/Om62ewQXEUheZbBYW8j2OY4uH3dMazlyIJi6bwJUSuQ1PgBEv4rad8jdpIQKvOzQfinA== Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: Extend DAMON sysfs interface to support hugepage_size probe filter. Allows hugepage_size user string input to the filter type file. Pass the size range argument that users set via min/max files under the probe filter directory to the DAMON core. Signed-off-by: SJ Park --- mm/damon/sysfs.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/mm/damon/sysfs.c b/mm/damon/sysfs.c index 8e8d89b8ed981..43519afb9eb7f 100644 --- a/mm/damon/sysfs.c +++ b/mm/damon/sysfs.c @@ -1007,6 +1007,10 @@ damon_sysfs_filter_type_names[] = { .type = DAMON_FILTER_TYPE_PGIDLE_SET, .name = "pgidle_set", }, + { + .type = DAMON_FILTER_TYPE_HUGEPAGE_SIZE, + .name = "hugepage_size", + }, }; static ssize_t type_show(struct kobject *kobj, @@ -2273,6 +2277,9 @@ static int damon_sysfs_set_filters(struct damon_probe *probe, damon_destroy_filter(filter); return err; } + } else if (filter->type == DAMON_FILTER_TYPE_HUGEPAGE_SIZE) { + filter->range_min = sys_filter->range_min; + filter->range_max = sys_filter->range_max; } damon_add_filter(probe, filter); } -- 2.47.3