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]) by smtp.lore.kernel.org (Postfix) with ESMTP id 13733C433F5 for ; Wed, 9 Mar 2022 21:40:51 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 824148D0002; Wed, 9 Mar 2022 16:40:51 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 7D2E48D0001; Wed, 9 Mar 2022 16:40:51 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6E9418D0002; Wed, 9 Mar 2022 16:40:51 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0188.hostedemail.com [216.40.44.188]) by kanga.kvack.org (Postfix) with ESMTP id 612A28D0001 for ; Wed, 9 Mar 2022 16:40:51 -0500 (EST) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 0A197181CE299 for ; Wed, 9 Mar 2022 21:40:51 +0000 (UTC) X-FDA: 79226167902.28.7FE4EEE Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by imf25.hostedemail.com (Postfix) with ESMTP id 85FA7A0010 for ; Wed, 9 Mar 2022 21:40:50 +0000 (UTC) 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 ams.source.kernel.org (Postfix) with ESMTPS id E3047B823D9; Wed, 9 Mar 2022 21:40:48 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1DFEFC340E8; Wed, 9 Mar 2022 21:40:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1646862047; bh=Wn6Pn2hqc9mv4qmzYe8C1j0oVQ6FqKJOJXV04OX5goA=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=hF7YR0HfRO7w6SSQHNDPnVtJo/5dCfKgisJ31jdpceHokiFp7tfXTKnQjsLF5k1fK WIZuJhybxSrnacr2+VZxl/2ZjPtmaFvfpqljhi7CBhkYxwAP50XIHXD2RU0xmIR8Nx r9f7STfRTO7qVEM3ThxbbIDngVbQsiaxnhTKytmY= Date: Wed, 9 Mar 2022 13:40:46 -0800 From: Andrew Morton To: Nadav Amit Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, Nadav Amit , Andi Kleen , Andrea Arcangeli , Andrew Cooper , Andy Lutomirski , Dave Hansen , Peter Xu , Peter Zijlstra , Thomas Gleixner , Will Deacon , Yu Zhao , Nick Piggin , x86@kernel.org Subject: Re: [PATCH v3 0/5] mm/mprotect: avoid unnecessary TLB flushes Message-Id: <20220309134046.31a0751523acb9babb55b9de@linux-foundation.org> In-Reply-To: <20220309041043.302261-1-namit@vmware.com> References: <20220309041043.302261-1-namit@vmware.com> X-Mailer: Sylpheed 3.7.0 (GTK+ 2.24.33; x86_64-redhat-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-Rspamd-Server: rspam06 X-Rspamd-Queue-Id: 85FA7A0010 X-Stat-Signature: wifrrmb5bmek8qdjqde4xubqn8h9hdmx Authentication-Results: imf25.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=korg header.b=hF7YR0Hf; spf=pass (imf25.hostedemail.com: domain of akpm@linux-foundation.org designates 145.40.68.75 as permitted sender) smtp.mailfrom=akpm@linux-foundation.org; dmarc=none X-Rspam-User: X-HE-Tag: 1646862050-753966 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: On Tue, 8 Mar 2022 20:10:38 -0800 Nadav Amit wrote: > This patch-set is intended to remove unnecessary TLB flushes during > mprotect() syscalls. Once this patch-set make it through, similar > and further optimizations for MADV_COLD and userfaultfd would be > possible. Thanks. I'll save this away for consideration after the -rc1 release. Which gives others plenty of time for review (hint) (request).