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 008453C98A4; Tue, 12 May 2026 14:37:06 +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=1778596627; cv=none; b=UVufDO5/fumpwz4PuVFRYUUNxE+4C7qDaEKxbaMA3VuVlwCMY0jCez2YBCCUiL+UkFBMchVXuEHTWsTFAVPVLCh8J/hD9rZdT9w/DjLjww6bu2PrihpQmyb8K27YPbgUUg5DTjugdcfNpoRyDw5WdKi1h9k/oxGzLs5iVXzmJNo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778596627; c=relaxed/simple; bh=nV0BEXAl/A1NtdiYPlzAvpITHMz8pj1VAAgBa/dBAlg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fhPcmQctsFV6b2f8bAd5BEUCAzCejVwWawP5X3E+r1C6z5UsIU5WPPTedJ+YnkCLVaFcwbsRbhQUMmlOcwysUwFIT/DsS0xbvSpvb2FQ40aEDhGmIgBxmUPnIjWsadShPFI3ptp3EFoy5jYMnaURHLCKYZR29TsWspKzqPSrHhw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=KsojjOUR; 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="KsojjOUR" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9207DC2BCFB; Tue, 12 May 2026 14:37:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778596626; bh=nV0BEXAl/A1NtdiYPlzAvpITHMz8pj1VAAgBa/dBAlg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KsojjOUR5FpzuhoMEsiQ74lUTtF3Sd4uHmbZgbxvj+CN35fepwndOghBiOVFw7xO0 Ina4iKV98T2sy2Dl9/ct+GGklfuSC0R28ypUeAVNfyTyvZXbJX9viVYPcDujdLlhlJ fMdeernsOZ2muTPkX9fjxA9IUvBjVb3JUrIDuSA0cy53BnFEXy0WeJFIjVxbqslFze Z5U15cbyGca6bSsK6eJ2xDhpWeWufKtDJcpPofPlrKa1YynmqgbFJvd7fuZ6+a5u77 iaFVyUu91FxnYcnsAH7crC5O+qgR4dRcbzf8l37Wkx+Vvga8b1iTzg8a9f3yWdd+8U k0G98Y2QL1+NA== 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 v2 23/28] mm/damon/paddr: support DAMON_FILTER_TYPE_MEMCG Date: Tue, 12 May 2026 07:36:38 -0700 Message-ID: <20260512143645.113201-24-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260512143645.113201-1-sj@kernel.org> References: <20260512143645.113201-1-sj@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Implement the support of DAMON_FILTER_TYPE_MEMCG on the DAMON operation set implementation for the physical address space. Signed-off-by: SeongJae Park --- mm/damon/paddr.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/mm/damon/paddr.c b/mm/damon/paddr.c index e60af2cbc1089..f093485fd16a6 100644 --- a/mm/damon/paddr.c +++ b/mm/damon/paddr.c @@ -124,6 +124,7 @@ static bool damon_pa_filter_match(struct damon_filter *filter, struct folio *folio) { bool matched = false; + struct mem_cgroup *memcg; switch (filter->type) { case DAMON_FILTER_TYPE_ANON: @@ -133,6 +134,19 @@ static bool damon_pa_filter_match(struct damon_filter *filter, } matched = folio_test_anon(folio); break; + case DAMON_FILTER_TYPE_MEMCG: + if (!folio) { + matched = false; + break; + } + rcu_read_lock(); + memcg = folio_memcg_check(folio); + if (!memcg) + matched = false; + else + matched = filter->memcg_id == mem_cgroup_id(memcg); + rcu_read_unlock(); + break; default: break; } -- 2.47.3