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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 774C2C43334 for ; Wed, 6 Jul 2022 07:45:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References: Message-ID:Subject:Cc:To:From:Date:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=4AzA4Hwzto0OX+Vm9crn9PhpEaIY031DoBv+TX/tav8=; b=pW8fwcTloIM61x PY/GkbenLUGa2XqzbYC1WX4yjXItGc7uZ1bVaKCU1dEhnBjFc+YBClvuRoJEcRa0TsHnbXuQLgJbg XtFUo3aO7xxMkS/fIwvNnPz08Yp1lhlWYGsHRfyqUZfW/c54GK0JTDive0MkzFuUAfoQIHEZduHgM LwKcz+mGckNZpuK4K85AWnKl7DuEv3X44vbd2amT00H6/lKf0HvCIcNGdMaKXRc/tmDQkf/HHN3X8 F2cDkt2KAfJpvvX3sZuTegU7eoEUsmv7ZNDqFY1YPgzg3SLb+IvUx3UYL1/wTuCGc00zP4eeuZp2r oF2+yPhMtFaemxnCc+4g==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1o8zhM-007ADc-J5; Wed, 06 Jul 2022 07:43:48 +0000 Received: from dfw.source.kernel.org ([2604:1380:4641:c500::1]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1o8zhJ-007ABx-8M for linux-arm-kernel@lists.infradead.org; Wed, 06 Jul 2022 07:43:46 +0000 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D6BC561DF6; Wed, 6 Jul 2022 07:43:44 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id A3F2EC3411C; Wed, 6 Jul 2022 07:43:40 +0000 (UTC) Date: Wed, 6 Jul 2022 08:43:36 +0100 From: Catalin Marinas To: "guanghui.fgh" Cc: Mike Rapoport , Will Deacon , Ard Biesheuvel , baolin.wang@linux.alibaba.com, akpm@linux-foundation.org, david@redhat.com, jianyong.wu@arm.com, james.morse@arm.com, quic_qiancai@quicinc.com, christophe.leroy@csgroup.eu, jonathan@marek.ca, mark.rutland@arm.com, thunder.leizhen@huawei.com, anshuman.khandual@arm.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, geert+renesas@glider.be, linux-mm@kvack.org, yaohongbo@linux.alibaba.com, alikernel-developer@linux.alibaba.com Subject: Re: [PATCH v4] arm64: mm: fix linear mem mapping access performance degradation Message-ID: References: <20220705095231.GB552@willie-the-truck> <5d044fdd-a61a-d60f-d294-89e17de37712@linux.alibaba.com> <20220705121115.GB1012@willie-the-truck> <7bf7c5ea-16eb-b02f-8ef5-bb94c157236d@linux.alibaba.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <7bf7c5ea-16eb-b02f-8ef5-bb94c157236d@linux.alibaba.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220706_004345_425834_144766ED X-CRM114-Status: GOOD ( 29.97 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; 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