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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 72AF4C433FE for ; Tue, 16 Nov 2021 07:52:27 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id ED63961B73 for ; Tue, 16 Nov 2021 07:52:26 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org ED63961B73 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kvack.org Received: by kanga.kvack.org (Postfix) id 547236B0096; Tue, 16 Nov 2021 02:52:26 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id 4F6596B0098; Tue, 16 Nov 2021 02:52:26 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 40D1A6B0099; Tue, 16 Nov 2021 02:52:26 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0077.hostedemail.com [216.40.44.77]) by kanga.kvack.org (Postfix) with ESMTP id 2EABE6B0096 for ; Tue, 16 Nov 2021 02:52:26 -0500 (EST) Received: from smtpin20.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id D1CA877989 for ; Tue, 16 Nov 2021 07:52:25 +0000 (UTC) X-FDA: 78814025850.20.8869055 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf07.hostedemail.com (Postfix) with ESMTP id 64F5A100009E for ; Tue, 16 Nov 2021 07:52:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=MXk0dMB6e6gfK6gZesuG2kP86bYpfpcfwlTsLC845C0=; b=gitEKn66h1yrZB0ydhd4Vicfwn A8qC2UHW4wqH3UfpvA9qFRhJt5G9Gqqj6hCIJ+rVzIpjBmvb1leLrLBzyplTGW7XfkqPUwpCHuwaB lI7QNu7wjZd1pjfw+n3sCRea0mb+CgEHxn5r0Jp/P4L+i3aISfm7hLvayyW0xTSi4QJD7J8/jp7NL 8s9JIRVK4+plGH8ZMonQ2BbyTzKOvKWnCDAXy7x+L1w4SGRBBrv+8rTihd6F1JAGlVBW/aHeL1iNB ILo28dMNDsGwbCxtYOelB8IPFD4inryzahWa7twE9v6erq2rvjb0xUuPT2iG4W8Je4HX3GwUljfql uUry1TAg==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1mmtGI-000d13-M4; Tue, 16 Nov 2021 07:52:14 +0000 Date: Mon, 15 Nov 2021 23:52:14 -0800 From: Christoph Hellwig To: NeilBrown Cc: Trond Myklebust , Anna Schumaker , Chuck Lever , Andrew Morton , Mel Gorman , linux-nfs@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 02/13] NFS: do not take i_rwsem for swap IO Message-ID: References: <163702956672.25805.16457749992977493579.stgit@noble.brown> <163703064452.25805.5738767545414940042.stgit@noble.brown> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <163703064452.25805.5738767545414940042.stgit@noble.brown> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html X-Stat-Signature: assbq6bt8dn9be9yn3cxs9xehx7gak7o Authentication-Results: imf07.hostedemail.com; dkim=pass header.d=infradead.org header.s=bombadil.20210309 header.b=gitEKn66; spf=none (imf07.hostedemail.com: domain of BATV+fc0a9848db96d791f48c+6659+infradead.org+hch@bombadil.srs.infradead.org has no SPF policy when checking 198.137.202.133) smtp.mailfrom=BATV+fc0a9848db96d791f48c+6659+infradead.org+hch@bombadil.srs.infradead.org; dmarc=none X-Rspamd-Server: rspam03 X-Rspamd-Queue-Id: 64F5A100009E X-HE-Tag: 1637049144-875680 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: I'd really much prefer the variant we discussed before where swap I/O uses it's own method instead of overloading the normal file I/O path all over.