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 X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id CF3B9C433E7 for ; Thu, 15 Oct 2020 09:03:46 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4808A2145D for ; Thu, 15 Oct 2020 09:03:46 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="0QKG9fIF"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="TssziCuK" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4808A2145D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:In-Reply-To:MIME-Version:References:Message-ID: Subject: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=HbpMSBRGSQ3pzhgzqOfAg3ccskkdcAI2xaJcVLw5XCQ=; b=0QKG9fIFdpeDA6DzF2lB0vaXr SOphsHtRa5XdQXSzGWVOgb6nzxtrSY7OO2ZeuosLU5K73K7YskcCeQkQYbG7DJ1gr/1uZNSsNfDHl M6QzYeJmcxyha13ozAtL9c4a2P4D8x/Wwm4/YLDsbZ3/0lGWXILeL7cYpg6Cn0j/XokBWyz4tZENP ogxMOP7jCiBJg3K8ZY+qugdh3qP3keon3fOPZ+R0sZlOkOZcSUdrWUyPAcPAsLeeWOM4LPVVpckHh CjUUc61lk1Mt7j4Q1L0aeRmWahIzQ+o/pV5XgwXUYHXx2r8WMRNiVc7FCItIoe/nxlmIqmmW00uLp 54MW5MSIQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kSz9s-0002gE-82; Thu, 15 Oct 2020 09:02:48 +0000 Received: from casper.infradead.org ([2001:8b0:10b:1236::1]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kSz9o-0002fD-D1; Thu, 15 Oct 2020 09:02:44 +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=i5I/+cL4/3BlrD1oU/6ksmOSk/qvKfKsTAdChNORLE8=; b=TssziCuKhu+1FMQTF7TdAznCvs 3wf31mB6br60aOA10fFjnjz4zucQawjaIVi98uQAWJL9cvAPmO0RKUN0GouLWSsCKTdUPVBNDFsoV Mrb0xKHkx5KR4TiHECNhtTiMIpRWqOvyG37o7YZ46NC49Q0H4l2nLmxuQ1H+5sXI87bLV4g7q0iCI aoXAla6IHi7PZ0gXRmx/1Oq0q50C+8whZA3Xn7UtIX1RuFhVZUcoBR/xTryh3MZKY2GykxNywq8Lk mgsPo2UmbVGDUTfrZAykSKaR2GERVG6hhr3SXMVN11kl7JWWBl894lOhZnBVM28hUwQeEtWELGDCv af1DTZLQ==; Received: from hch by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kSz9m-0003Pp-UN; Thu, 15 Oct 2020 09:02:42 +0000 Date: Thu, 15 Oct 2020 10:02:42 +0100 From: Christoph Hellwig To: "Matthew Wilcox (Oracle)" Subject: Re: [PATCH v2 00/16] Allow readpage to return a locked page Message-ID: <20201015090242.GA12879@infradead.org> References: <20201009143104.22673-1-willy@infradead.org> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20201009143104.22673-1-willy@infradead.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-cifs@vger.kernel.org, Richard Weinberger , ecryptfs@vger.kernel.org, linux-um@lists.infradead.org, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, linux-mm@kvack.org, linux-mtd@lists.infradead.org, linux-fsdevel@vger.kernel.org, v9fs-developer@lists.sourceforge.net, ceph-devel@vger.kernel.org, linux-afs@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org On Fri, Oct 09, 2020 at 03:30:48PM +0100, Matthew Wilcox (Oracle) wrote: > Ideally all filesystems would return from ->readpage with the page > Uptodate and Locked, but it's a bit painful to convert all the > asynchronous readpage implementations to synchronous. The first 14 > filesystems converted are already synchronous. The last two patches > convert iomap to synchronous readpage. Is it really that bad? It seems like a lot of the remainig file systems use the generic mpage/buffer/nobh helpers. But I guess this series is a good first step. ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/