From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id C169ACCD183 for ; Thu, 16 Oct 2025 17:53:16 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 0B3938E0011; Thu, 16 Oct 2025 13:53:16 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 08C358E0002; Thu, 16 Oct 2025 13:53:16 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id F0ABA8E0011; Thu, 16 Oct 2025 13:53:15 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0011.hostedemail.com [216.40.44.11]) by kanga.kvack.org (Postfix) with ESMTP id DB9E18E0002 for ; Thu, 16 Oct 2025 13:53:15 -0400 (EDT) Received: from smtpin03.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay08.hostedemail.com (Postfix) with ESMTP id 7E94F1403E9 for ; 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a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1760637193; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=jAu83oS9gzp7sau+oXDcn142g+i1nN58RGSVbFFjb+g=; b=Bzps2xloX4caTWwa4AH5dqiimxvhDMRjdQpAUviT7yM8Se1Y1YmoBexQ8R+3cZD0zDI4i5 TC5XzhHAjNSpGzJZJ+iPA/AlPpLCeMlx4S+tfojAU7JhCBfBI5CoehtRWDQ9C8FSXNwLow RuAL3y8lmzorl3eImh7fivETVDzxlXs= Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 66CCD1596; Thu, 16 Oct 2025 10:53:04 -0700 (PDT) Received: from [10.163.66.205] (unknown [10.163.66.205]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 612EB3F738; Thu, 16 Oct 2025 10:53:08 -0700 (PDT) Message-ID: Date: Thu, 16 Oct 2025 23:23:04 +0530 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v3 1/3] mm: mprotect: always skip dma pinned folio in prot_numa_skip() To: Kefeng Wang , Andrew Morton , David Hildenbrand , Lorenzo Stoakes , linux-mm@kvack.org Cc: Zi Yan , Baolin Wang , Ryan Roberts , Barry Song , Lance Yang , Liam.Howlett@oracle.com, Sidhartha Kumar References: <20251015123516.2703660-1-wangkefeng.wang@huawei.com> <20251015123516.2703660-2-wangkefeng.wang@huawei.com> Content-Language: en-US From: Dev Jain In-Reply-To: <20251015123516.2703660-2-wangkefeng.wang@huawei.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 6145DC000B X-Stat-Signature: 5wjrxbc1pos4seguxn3jnwpophxxj8hx X-HE-Tag: 1760637193-925557 X-HE-Meta: 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 /mEqP7sP 9jzzqeWyR48qr4IEpXdcThHUyaBSRHt7ik3p1GePaSl0enqKXFYlgFSW7+n2EmXrDKDANjtpujozVzcJroX3L9m4xHgiccKnkoXjrI4q15Qveb1Fc1TD15RmAVdC7Pck5sAgITGTryADMfRrYZA1Olmr9EkbTiEC5d4T8qpnTBJQxPhVY35Ei9mfAcKnLHp5gIpUeZkeqJfmiERgPQU1wVmkUitWlMKGpECMIqOP+5A1MTwefjAUQ+SlWtmNmH6ungWwmS2OuhxsO+X9Cz4Vj+8Ec36MEqmmcBi85T9KdMKngFzxPTcbMFc4QRpQ0eerbQWvxdl7XvNs3VEuL4PNkIMV2ow== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On 15/10/25 6:05 pm, Kefeng Wang wrote: > If the folio(even not CoW folio) is dma pinned, it can't be > migrated, so always skip pinned folio to avoid a waste of cycles > when folios migration. > > Reviewed-by: Sidhartha Kumar > Acked-by: David Hildenbrand > Reviewed-by: Lance Yang > Signed-off-by: Kefeng Wang > --- Reviewed-by: Dev Jain