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 138F1C4345F for ; Wed, 24 Apr 2024 11:02:44 +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=MQ7RLFf1lvwG3rBkznYb/5sxYixiyqHHuM4UJSskTN4=; b=k4uhuAAe7lK/Np /GI7XlUfADpm4GKBTF3djWq/H9aGKmVHPq5BGoeNM4p/GDcYbmr1OJzYHwKng4Q/Xtxz7faSwyyGk ovgokZ6hCsk+5lN3kpFWP39Vpos5U/X45Bhi9DRVRoTB6sfq7wE2c1G534pd5gcj4+aheEtky3Zcm 1OTZMjLRq4G/EYK4u9Rqb5hW7kJU9+KIojeUGjtb+T4Q+DLu1DeUk9VO4Vk2MkC8HQEXjIiy6GU+X 6ytbAWk1dE0voSLFm1yAWO5OCunuXpUxzytbL3+q8FBwwdgWMSjoOHxpwky0OQzX5dnbIPXyKAaa7 sdj5boftji2gujyGZ66A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.97.1 #2 (Red Hat Linux)) id 1rzaOR-00000003p4b-1doM; Wed, 24 Apr 2024 11:02:27 +0000 Received: from sin.source.kernel.org ([2604:1380:40e1:4800::1]) by bombadil.infradead.org with esmtps (Exim 4.97.1 #2 (Red Hat Linux)) id 1rzaOJ-00000003p06-25nu for linux-arm-kernel@lists.infradead.org; Wed, 24 Apr 2024 11:02:26 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by sin.source.kernel.org (Postfix) with ESMTP id 78C2CCE1665; Wed, 24 Apr 2024 11:02:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DB773C113CE; Wed, 24 Apr 2024 11:02:13 +0000 (UTC) Date: Wed, 24 Apr 2024 12:02:11 +0100 From: Catalin Marinas To: Ryan Roberts Cc: David Hildenbrand , Shivansh Vij , Mike Rapoport , Will Deacon , Andrew Morton , Shuah Khan , Joey Gouly , Ard Biesheuvel , Mark Rutland , Anshuman Khandual , "linux-kernel@vger.kernel.org" , "linux-arm-kernel@lists.infradead.org" , "linux-kselftest@vger.kernel.org" Subject: Re: [PATCH v1 0/5] arm64/mm: uffd write-protect and soft-dirty tracking Message-ID: References: <20240419074344.2643212-1-ryan.roberts@arm.com> <24999e38-e4f7-4616-8eae-dfdeba327558@arm.com> <9e73ad2f-198c-4ab5-a462-2e238edd9b34@arm.com> <3e14ad32-17da-49fd-a4ac-8f87f9151dba@arm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <3e14ad32-17da-49fd-a4ac-8f87f9151dba@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240424_040219_770170_97F2290C X-CRM114-Status: GOOD ( 10.82 ) 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; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Apr 24, 2024 at 11:39:23AM +0100, Ryan Roberts wrote: > - Have a chat with Catalin about appetite for soft-dirty on arm64; But likely > that will be left here until/unless there is clear justificaiton that the > use case cannot be met with uffd-wp. I agree, I wouldn't use the last software bit if there's a way for CRIU to eventually use uffd-wp. -- Catalin _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel