From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3F2CB399031; Mon, 18 May 2026 23:41:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779147692; cv=none; b=kr3A8jlGRMmX3r5LQ55AIpsuIoERFUeyOu7vTSJsjKCvRKO1iHskWRGgeENB2NCe7hwT2dPYkiI0v45rc5JfZbOqnxgXNWxuZFj5kndNtiO1FmBKOssemkyGsKw9s1V7oShiLs1KLkFKXJjbMa+uSyfrG91eGI2fS52itPgUkOw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779147692; c=relaxed/simple; bh=6FCGqtqPK1Y1yCXdyueYRDbO5bOOUBp7eJYagnQ/2uA=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jfFLetoC/ARJ0xW2wDpbhR9OYIMX6EExm/kakxPnYLrQDhjEj+D8oBex1/DU8N9erx1HCb2XzRfSUUGUT2GLnBZUPycoLuhU6nsJdWhuhC3L3JvD/ZW2IwVvgCKl5l26CZf7C0d8hYDIKzw+F8Wxl5xQfxcrYmzk+7CREehLTFg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Sv28qGD1; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Sv28qGD1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id EE061C2BCB7; Mon, 18 May 2026 23:41:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1779147692; bh=6FCGqtqPK1Y1yCXdyueYRDbO5bOOUBp7eJYagnQ/2uA=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Sv28qGD1fBC1oWwlOv+NYk3ZPwvyCCq+0pmn0h12YcRr9a6RTz4X7Fuf7CrZVMx5M 1v7Qd/Zxj7SlJxxCeo1l35krA2BFOocZ2pHjLterqnyfw+8OCWwjGxJ0LI+XSAyoT8 Y7ynJDO/U8VSNu8e741JTrvfAOo+BDGxP/l1MThFLPl58R4PGgKebYDC+e13eUm5DU 89XBTH2i4eTFRKMApT+F/CaDzBd/t0jvvs0TgC4T+M+5Re1CvDCPR5cLiAJNeniBhC FzJup3NIpnrZAphhx7RoloYSOLXCacq904GFuApJ5zZbtIjpuGXGTy8UQ9sU+Ok5D1 Ip06a09ta9vWQ== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 22/28] mm/damon/core: introduce DAMON_FILTER_TYPE_MEMCG Date: Mon, 18 May 2026 16:41:10 -0700 Message-ID: <20260518234119.97569-23-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260518234119.97569-1-sj@kernel.org> References: <20260518234119.97569-1-sj@kernel.org> Precedence: bulk X-Mailing-List: damon@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Belonging memory cgoup is another data attribute that can be useful to monitor. Introduce a new DAMON filter type, namely DAMON_FILTER_TYPE_MEMCG, for monitoring of this attribute. Signed-off-by: SeongJae Park --- include/linux/damon.h | 6 ++++++ mm/damon/core.c | 14 ++++++++++++++ 2 files changed, 20 insertions(+) diff --git a/include/linux/damon.h b/include/linux/damon.h index 1fb271a35e98f..6a54c601889bd 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -742,9 +742,11 @@ struct damon_intervals_goal { * enum damon_filter_type - Type of &struct damon_filter * * @DAMON_FILTER_TYPE_ANON: Anonymous pages. + * @DAMON_FILTER_TYPE_MEMCG: Specific memcg's pages. */ enum damon_filter_type { DAMON_FILTER_TYPE_ANON, + DAMON_FILTER_TYPE_MEMCG, }; /** @@ -753,12 +755,16 @@ enum damon_filter_type { * @type: Type of the region. * @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. * @list: Siblings list. */ struct damon_filter { enum damon_filter_type type; bool matching; bool allow; + union { + u64 memcg_id; + }; struct list_head list; }; diff --git a/mm/damon/core.c b/mm/damon/core.c index 5ba7ad4df4351..4fc90b0bdac88 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -1433,6 +1433,13 @@ static void damon_commit_filter(struct damon_filter *dst, dst->type = src->type; dst->matching = src->matching; dst->allow = src->allow; + switch (dst->type) { + case DAMON_FILTER_TYPE_MEMCG: + dst->memcg_id = src->memcg_id; + break; + default: + break; + } } static int damon_commit_filters(struct damon_probe *dst, @@ -1457,6 +1464,13 @@ static int damon_commit_filters(struct damon_probe *dst, src_filter->matching, src_filter->allow); if (!new_filter) return -ENOMEM; + switch (src_filter->type) { + case DAMON_FILTER_TYPE_MEMCG: + new_filter->memcg_id = src_filter->memcg_id; + break; + default: + break; + } damon_add_filter(dst, new_filter); } return 0; -- 2.47.3