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 2E2CB36DA0F; Fri, 15 May 2026 00:44:57 +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=1778805897; cv=none; b=iEAX7h9AUMPauCwwcRJ8XLpkevXQcTkZqxLrmH2jjeFb7m63PIojo/YfyLUT5t3ywfQu56HmXsbBaQMETVuK1IBuWFxzTvsPOYElfIUv4zdPOP1Tp3y8sw59T1Vkpl/2uuW+so5pp52bEnOKjvnBlTK6LsOy6mE1iZrHeeXhghY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778805897; c=relaxed/simple; bh=lR5soWN3IOVMOAa5jz6VmMJ/WG2kTof///VJp0cNoDQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GUKFZ5aeuNs+ccSlTsWlax9LbqvvHLKMsmGV31A7jVq9gCKp/uZx9BMg1J+28aU7dXwn2hBfqIWWaRYTWNlrI+Jgmr5d9mVnO+tCah2hjRJKSShBPiYgFsOKV6xhCOjM2NIX5T4j7vjNp5OHoZxdwhgxRzMRb02G1Lm27SqkCws= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GJpnyRce; 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="GJpnyRce" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9CF0FC2BCF6; Fri, 15 May 2026 00:44:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1778805897; bh=lR5soWN3IOVMOAa5jz6VmMJ/WG2kTof///VJp0cNoDQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GJpnyRceOgoYjh64htKLDtHX4VVkUjh+8Gu5d+DFH7Fsl5eodlbpjHMuJq8DeIDEl wJ8T7CvOkwLPL++m7fkvjF40gjIFQQTu4ZkeOe7gDKQ2kBowMKXc+0oCL+eNvu+MQt npJfGTCVkfgXIeUq2ML77DpvLxNibMuqhUGgjZ1J3JtfT9fx3eDmqDaXQg3MdUBke5 sENoSXqjkBwKIOX5hGatLf/31uqHFl8lrgzRyHCeAcbAt6u2sAzWxNYXWVzSm8OPnc jEoXlCHuWPmrfSxY0Lld3APgm6jBc5rg50QTlW/DvONAsHU12L+vuSK26/U07oDVve H7wTWOkGt6JEw== 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 v2.2 23/28] mm/damon/paddr: support DAMON_FILTER_TYPE_MEMCG Date: Thu, 14 May 2026 17:44:24 -0700 Message-ID: <20260515004433.128933-24-sj@kernel.org> X-Mailer: git-send-email 2.47.3 In-Reply-To: <20260515004433.128933-1-sj@kernel.org> References: <20260515004433.128933-1-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 493bcca8ff104..c3adccc2e6c71 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