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 BE261CD5BB5 for ; Fri, 22 May 2026 13:09:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:In-Reply-To:Content-Type: MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=EQj1Rbpw/H3Oe/sDGMgX6onZ6xyYKXcG7QBzM5CpJi0=; b=hwWYHFHW5pH1DH+oY1WgCndgeC hQN2UWwyMXurmx6ObsozZD+Dewergc7HE/ngP1//5YdKAuiD5pWrF0DACeA7ofSYDQ6wS29aGfIC2 bdzv0jqGRyS4Tt4CIhcT48pfZGHx/RdXV8DHl2WFWO7orqisynp6j6biYC6J3xbLt2czuIWuLCQNa tUiYLPiWIUGU0pT8eDhTd2OAksHTkWWf24gqc+i4CyI5o0CLDwDPFh2/zzxIykGXoVQUpjjAbv6GH 4TnzJQnd2FIxfDOOgVYmFNrA8I6N2gF4YFNHDT6FE9Tk6PS3ko6AScM/2zLaufePSjbralKfoIYi7 p2QEeOSg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wQPdF-0000000AueZ-3l9t; Fri, 22 May 2026 13:09:41 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wQPdE-0000000AueG-1IIj; Fri, 22 May 2026 13:09:40 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; 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=EQj1Rbpw/H3Oe/sDGMgX6onZ6xyYKXcG7QBzM5CpJi0=; b=pyFlsOsI1W2H+d/c1dR87cu4A1 nbk3QdhQ5igmGpectY46XehGUF3atPk8mqBTiAMYhp+RVUaHnf7U7vngJ2F4UAUNwxrJuFWL2uqdB d/WzjoEOMMz3D7k6H05YXwgJRsOWxWdJDddNXfpSrUVVgHRj5tJE6frgLHjiVX5xx+Bd6y6rK5bDz BjnT1OR4KHVpKXlgod+qjgxUoNjEidgt2I4IkCQEqjwx8IU2B9gxtaWWSot0M7QRZv1MxzvStf58r evpBrKrXC124rfJ3AuHL6Tt3FC+WRpKb7tjf8+PbXNt3tbgW/GZM31sgXDj/od4TakCYHwR3VUGW7 FSgIl7pw==; Received: from willy by casper.infradead.org with local (Exim 4.99.1 #2 (Red Hat Linux)) id 1wQPd1-0000000A7eI-1OCp; Fri, 22 May 2026 13:09:27 +0000 Date: Fri, 22 May 2026 14:09:27 +0100 From: Matthew Wilcox To: "Barry Song (Xiaomi)" Cc: akpm@linux-foundation.org, bhe@redhat.com, chentao@kylinos.cn, chrisl@kernel.org, david@kernel.org, jack@suse.cz, kasong@tencent.com, kunwu.chan@gmail.com, liam@infradead.org, lianux.mm@gmail.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, linux-s390@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, liyangouwen1@oppo.com, ljs@kernel.org, loongarch@lists.linux.dev, mhocko@suse.com, nphamcs@gmail.com, nzzhao@126.com, pfalcato@suse.de, rppt@kernel.org, shikemeng@huaweicloud.com, surenb@google.com, vbabka@kernel.org, wanglian@kylinos.cn, youngjun.park@lge.com Subject: Re: [PATCH v2 0/5] mm: reduce mmap_lock contention and improve page fault performance Message-ID: References: <20260522023305.98223-1-baohua@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260522023305.98223-1-baohua@kernel.org> 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Fri, May 22, 2026 at 10:33:05AM +0800, Barry Song (Xiaomi) wrote: > need to touch `filemap.c` at all (probably because you are already > maintaining `filemap.c` perfectly): I'm going to give you one chance to apologise for that.