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 4756A36655B; Sat, 16 May 2026 18:37:33 +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=1778956654; cv=none; b=cs9E2pR4wyZdNQnTPYEcTBcRsMDqlFFGsQlCdfQjmuoMYPQARF2hSCkcVxk9pTmsBE4+egrhIpae2Q6uvV1amg5n51sUcEiMRwHXs3bhtLOpdgkYy/E4ugNmVlp4G7TIAm5ZbcAvniJ7IL0uF8rtH32UYn9YhpeLK2JY5kB5UJM= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778956654; c=relaxed/simple; bh=2Ec0kIvSNNzHsY2IUhwcp+UI3Lx0nH8m4xnL8yQciI0=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ogg9I9HZsGpJsKAhOzg30F+snh9hhv53eJQKt3USCDRwOGtPqbP/lMQ+2ISSU/YUVAn9iribWM+ciKXdvJo5yeYqrErfLuIMgleCzansYEIOjN8qSUCFhfTCWA/34X/zAmOR4Try6y0Qn+wH+T4RhgF+TLf5ZHvD8ZY2cYJ+HFg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KH2ctPE3; 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="KH2ctPE3" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 0C360C4AF11; Sat, 16 May 2026 18:37:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778956653; bh=2Ec0kIvSNNzHsY2IUhwcp+UI3Lx0nH8m4xnL8yQciI0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KH2ctPE3z+F28KIea6irxq3fcBYKl/QSEhQUsM/8PCcQDij7ql6+QWVLIT7XNCHSq HoCsNFgqLv1hiHcDQWck4HKOdDUBfG9Ss6xuNJNwKXgKB8aQgX2GTvJ00dWD6HFBhM WZPqFaMcDauSCO3Ms1U2z+FymCK1cZwua/EBFh9Ek79VkpjsV/i5OM4rZiaLGGmMPD yP1qsEvC64VWmvN4jRothMj+Y7bRgw5KTLLp9a2mCsrbaz3gDWWOvQXl4qk9bo3mt4 YusN/dCrmE49HH6Wym/QDLdLSx6Tu/nW8R1hNNrbKEQjwHJdAaVKXh97qRuJmi0i6N DZyoPHUCVjm+Q== From: SeongJae Park To: Cc: SeongJae Park , Andrew Morton , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [RFC PATCH v3 22/28] mm/damon/core: introduce DAMON_FILTER_TYPE_MEMCG Date: Sat, 16 May 2026 11:37:03 -0700 Message-ID: <20260516183712.81393-23-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260516183712.81393-1-sj@kernel.org> References: <20260516183712.81393-1-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 d3b6296700a08..56a76781fde22 100644 --- a/include/linux/damon.h +++ b/include/linux/damon.h @@ -733,9 +733,11 @@ 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, }; /** @@ -744,12 +746,16 @@ 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 11b513eb077fe..332d13d9f8603 100644 --- a/mm/damon/core.c +++ b/mm/damon/core.c @@ -1422,6 +1422,13 @@ 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, @@ -1446,6 +1453,13 @@ 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