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=-6.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,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 74F38C00A89 for ; Mon, 2 Nov 2020 19:45:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0758F20786 for ; Mon, 2 Nov 2020 19:45:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="JQIuOTsy" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1725809AbgKBTpE (ORCPT ); Mon, 2 Nov 2020 14:45:04 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:42160 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725791AbgKBTpE (ORCPT ); Mon, 2 Nov 2020 14:45:04 -0500 Received: from mail-qk1-x744.google.com (mail-qk1-x744.google.com [IPv6:2607:f8b0:4864:20::744]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0858DC0617A6 for ; Mon, 2 Nov 2020 11:45:04 -0800 (PST) Received: by mail-qk1-x744.google.com with SMTP id o205so5792356qke.10 for ; Mon, 02 Nov 2020 11:45:03 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to; bh=zoHRaC+q1DguR6osPtLp37nru+Ah4gIJ8FvwwtNiSoA=; b=JQIuOTsybW8pV5GAecS4UnX2d0D6KftM4kWyi8TXAknhPrXJNWVG95NwoahiXigX38 PHcxowg7vEe/Dxts2Wf1i/kzvCflXaWHS3c5XLHBTWOLom3PZn0l0jflhrjHfMKD24l3 Rm201RmtxDXXN3uTjJUHIvV3D2ulNy+Au7hxy3dQEA747yK+6dGnCa5ytqq+GhM0Qlu0 vnqLK1jwN0EWipQn520FmhW7Hnw074zAXTo5rzf44T84vJd36R7HUsxVxSTGnm+OrdC1 G/M2O8wiLX0i6316QDFk9o01fmLJV9wqjhKmVfqHZrdNIRSQX1Kv9tqeKXLhM3CqlRH3 bW+Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=zoHRaC+q1DguR6osPtLp37nru+Ah4gIJ8FvwwtNiSoA=; b=lpAW4iD/Sv5vDyRouLsVDJYZYbRVb1orCFSJSot9eki/uyvGEPORgqoNZS0JqRV4j+ /a0p2WMN6S3jvhhbX2CaSw6oGLHi8tZA0BMGIz31+6v0LoWLV54kv2TdWXgsrgmWW7o1 S3sg/2f6EjxXHg9JVeTL3zKpVEW+t+9uQ44ai/lf63b5jaQV7wVJORV1eR1ZKLb5Nc5h XUHPsMv/+jAnRGeGYNrMHKZCc7112x9v/omvhWTg0l/ePi6kfCkuRvKqcr8Mr97etY1B SXNhop5YSvpMk95jjbiJ3hYfd2v9QYVRjYo3SgNmz+vX2Pmiw7pLD4fEu82gCapUwIrF qjAA== X-Gm-Message-State: AOAM530hDXtU+K6/JubZn53lmoZpW/naqkBd6ueKOgjmP4Ve+ROGmoJV mis0RSLIDxUyvnTwLSl1BIAy5zxonOSk X-Google-Smtp-Source: ABdhPJyT/jeQmelYDuivBnYqCh+8j2EkOgNesXQqurJQnIlCp5c698O49YFZU5vWEFIXq9wsiFsm0Q== X-Received: by 2002:a37:64d5:: with SMTP id y204mr11999066qkb.474.1604346303362; Mon, 02 Nov 2020 11:45:03 -0800 (PST) Received: from moria.home.lan (c-73-219-103-14.hsd1.vt.comcast.net. [73.219.103.14]) by smtp.gmail.com with ESMTPSA id t18sm4418651qtr.1.2020.11.02.11.45.02 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 02 Nov 2020 11:45:02 -0800 (PST) Date: Mon, 2 Nov 2020 14:45:01 -0500 From: Kent Overstreet To: "Matthew Wilcox (Oracle)" Cc: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, hch@lst.de Subject: Re: [PATCH 10/17] mm/filemap: Move the iocb checks into filemap_update_page Message-ID: <20201102194501.GN2123636@moria.home.lan> References: <20201102184312.25926-1-willy@infradead.org> <20201102184312.25926-11-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20201102184312.25926-11-willy@infradead.org> Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Mon, Nov 02, 2020 at 06:43:05PM +0000, Matthew Wilcox (Oracle) wrote: > We don't need to give up when a special request sees a !Uptodate page. > We may be able to satisfy the read from a partially-uptodate page. > > Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: Kent Overstreet