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b=bqRA3QNbasQ8DrHsKmqlwy9wG2lT8VVfjg6LzxYxnCX3jh7ux1jsm7Q3hdxxCndDN nHqVED8xcle2ZqP9x1W0BvsO4H99I+BczwrFfpyeY15TFPxR5fzQZ/kG4jwkvfTmJJ k2y4X9yD0jm0BwZXav5SG0fwghFLy4HfYi+TzrjyjqQ6oxyWOMxcpX3xxZtxvOE/PQ NKp47PX10hdYkq6vxLJObHV26mJD9q5gxbTW/dD5I57cCE8Qm3Ba4vb5LqzPVGyxt4 NPBT10OFDmsTUbebfyod0oy2e+l9ulAIrrS3XdQIJ5knAVyzeSmpcl6VBu7moGNAI/ CIx4KguVr5x9w== 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 v2 5/8] mm/damon/sysfs: support hugepage_size probe filter Date: Mon, 14 Sep 2026 07:44:42 -0700 Message-ID: <20260914144448.93732-6-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260914144448.93732-1-sj@kernel.org> References: <20260914144448.93732-1-sj@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 24074180006 X-Stat-Signature: 471c4xnw5ecurhbauo1qa45j3bocwnpr X-HE-Tag: 1789397098-770579 X-HE-Meta: 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 FqQJVyW+ WjJ9N+X41tXeyaC8IyB+aIask/kHFelZz3F70ApnKURzcYPEluJqCzFi1rCkSyhvU6RlzdNEzWfsIyUl6duCarvztcN37PKE/dmtrLnu54CNvDvzKrM9UaiKLAbsqxaXMuSbHNaiuPgbxfKuCkvtVm6wmpXy6rMjtnnFkiWLkQu7Gpp2t6ZPR197nM07DnIf5MZO1R7/fM59krUJJjvlxSmMR2w2+PmIXVbnlF3sB/yIj0LxLJRe0X2r54K7Cw+Xz8YVpgg9sL9GkP19qOEO9pn5raA== 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