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 C60BE3A256C; 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=FXgNH8S+0nvZZHQHKKtYXqjbCHODGnLOpodJ1pwteDHhwL0JqUrkatWqaZZ9mHweySeXeTfh3jGSL4q5V8UoZGmIdjyI1p6dSIEIRUVjQx/bNsZgjbdXrtbtrd9ZhM289zchC5l4OVDm8RG4DwsYMSStBARJtWkIpdvkToziIB4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779147692; c=relaxed/simple; bh=nQkVs1zWTxTfa8xwvc1gaYrxiOp7sl8ZruOo6hvwVAc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=HI7t0AIb2lbAScww1GFkibFHma+EOsDQiiCvBtrwhnKKGQzc4pyGAq4Z6AG5YPUabsqcBq0ii2GMKXYeaBNV0nx0Lh+EBnuKE28lscZHErpx09k9JAK0Oj2wySdp80BpTr/FmMNDg81zQqtTxQOb7eiUUjXjQ1cimtVl8DVb+fU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=pkfPHVX7; 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="pkfPHVX7" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 49151C2BCB8; Mon, 18 May 2026 23:41:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1779147692; bh=nQkVs1zWTxTfa8xwvc1gaYrxiOp7sl8ZruOo6hvwVAc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pkfPHVX7GX8aIMQ/kJ/GD5EiTwpxljO4R8nUKMySnXQ9Vb+lulnQBcBIW/nNx2C4m ClZoKjHJxKswAPf0joekMlk+8v0v/EcSa3o3mQKfLv3Ar52wfMDr8BD+yelnCCNxIE JK2PiqCCw47a0Gilz4unDa3f46dCO/7Od9kBIR3pK9I0AtPfwjlBKou8sro1cq+v4c WMwCJLs4ae4KK6G7lrM68CS8PIi17wGbjrlNK4m42Eep1f/ShmlBqddY3ucSqHquHX tgrLIMXbARD07N0DVWPGPDM7zK2GsKQjvV54K/Kp/onV0anElv6sHl8GwY0UFczpvU c+se8nMtaPYtw== From: SeongJae Park To: Andrew Morton Cc: SeongJae Park , damon@lists.linux.dev, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: [PATCH 23/28] mm/damon/paddr: support DAMON_FILTER_TYPE_MEMCG Date: Mon, 18 May 2026 16:41:11 -0700 Message-ID: <20260518234119.97569-24-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 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 9997c5174ef1b..d0598f5f26882 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