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 51C7DC77B75 for ; Tue, 16 May 2023 10:42:29 +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=tyl1VLCqOPjMtlsRRDPn9PtehGtHAvNsXLxgKAdl9Y0=; b=KBpDIn7+jdiyvO 40Ac73ihJPf4GGFDZ1mx7trE4mMarQ5lb6UZHPNMS61mlheodRHmbyFM1sNzKBqdRc8k6ZzqHkjDb crd4Rk+q9Zg3TwNpCNnigJoLCm4uZ2xOUKU1EHTnuqjGvfH4IBx7v9mNtL3K8L+X2E2LWstBbVl/Z YPbHMSUC9Z80D7nE730RTgNtbF30UpLAkA5aQ2kLWpZhENrGL6FEYP5Uhp8x0B6yg4YklCgd4qZji GM4kU0g13yqOOWri3tH4nSVPNg5OrDe/O+DfzxBMclDYgT2tThcuVT1Je/7P7OekaxpjU/VgMOFwT 4Xbpi20TDjtKwNMNeZqg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1pys8K-005Jop-1Q; Tue, 16 May 2023 10:42:20 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1pys8I-005JmK-1P; Tue, 16 May 2023 10:42:18 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=aFE52arMbeuGVCs81HtFqwlRw7vUUbocXdncBereG0Q=; b=FkkqeXjyINXcZ0dn67fZnclgj5 cM/jyQTU2OOfVb/EiYFiDE06liJQP27KDAcpUH/jvL5QV5T8XRtCJzU+4kg1GW4V/NzKuN4GPJCdQ 0sqkIOfozkG/6bRoKC331l4E55SrRg5QgVT5Oax7JRzQ8FaceCgUVhX3+9fgImj0uvsScOdj/gykc BiRVVw7g07fwYDhA/dioi9Gx9dHD4NjilKqhgdxQMUfWU0+KUYPlLl+nB8lai821mGMHryLvk+NSQ Eh+gOFJ/bYjCd1MgOmvB2ulDNpaXZcyForWW7zbsHFkP4U9F6xTP8XOIUJ9iT/VeLM4yXgttg5d8o HZ+p+e2A==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by desiato.infradead.org with esmtpsa (Exim 4.96 #2 (Red Hat Linux)) id 1pys7y-00C5WG-2z; Tue, 16 May 2023 10:41:59 +0000 Received: from hirez.programming.kicks-ass.net (hirez.programming.kicks-ass.net [192.168.1.225]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (Client did not present a certificate) by noisy.programming.kicks-ass.net (Postfix) with ESMTPS id D21DF30008D; Tue, 16 May 2023 12:41:52 +0200 (CEST) Received: by hirez.programming.kicks-ass.net (Postfix, from userid 1000) id A9E932013503C; Tue, 16 May 2023 12:41:52 +0200 (CEST) Date: Tue, 16 May 2023 12:41:52 +0200 From: Peter Zijlstra To: Matthew Wilcox Cc: Hugh Dickins , Andrew Morton , Mike Kravetz , Mike Rapoport , "Kirill A. Shutemov" , David Hildenbrand , Suren Baghdasaryan , Qi Zheng , Russell King , Catalin Marinas , Will Deacon , Geert Uytterhoeven , Greg Ungerer , Michal Simek , Thomas Bogendoerfer , Helge Deller , John David Anglin , "Aneesh Kumar K.V" , Michael Ellerman , Alexandre Ghiti , Palmer Dabbelt , Heiko Carstens , Christian Borntraeger , Claudio Imbrenda , John Paul Adrian Glaubitz , "David S. Miller" , Chris Zankel , Max Filippov , x86@kernel.org, linux-arm-kernel@lists.infradead.org, linux-ia64@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linux-sh@vger.kernel.org, sparclinux@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Michel Lespinasse Subject: Re: [PATCH 00/23] arch: allow pte_offset_map[_lock]() to fail Message-ID: <20230516104152.GH2587705@hirez.programming.kicks-ass.net> References: <77a5d8c-406b-7068-4f17-23b7ac53bc83@google.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-BeenThere: linux-riscv@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-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Thu, May 11, 2023 at 03:02:55PM +0100, Matthew Wilcox wrote: > We also talked about moving x86 to always RCU-free page tables in > order to make accessing /proc/$pid/smaps lockless. I believe Michel > is going to take a swing at this project. Shouldn't be too controversial I think -- effectively everybody already has it enabled because everybody builds with KVM enabled. _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv