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=-3.6 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE, SPF_PASS 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 4188FC41621 for ; Tue, 24 Mar 2020 08:40:53 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id F333D20724 for ; Tue, 24 Mar 2020 08:40:52 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="FvZ8B03F" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F333D20724 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 7B2C26B0005; Tue, 24 Mar 2020 04:40:52 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 73C3F6B0006; Tue, 24 Mar 2020 04:40:52 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 62B196B0007; Tue, 24 Mar 2020 04:40:52 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0090.hostedemail.com [216.40.44.90]) by kanga.kvack.org (Postfix) with ESMTP id 46F596B0005 for ; Tue, 24 Mar 2020 04:40:52 -0400 (EDT) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id A216219233 for ; Tue, 24 Mar 2020 08:40:52 +0000 (UTC) X-FDA: 76629610344.28.bomb53_24b5cd6c06804 X-HE-Tag: bomb53_24b5cd6c06804 X-Filterd-Recvd-Size: 2563 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) by imf46.hostedemail.com (Postfix) with ESMTP for ; Tue, 24 Mar 2020 08:40:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.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=yann1UJ6E2VSa2Ey9do+WcXl7l36OBhp3PfHyqllino=; b=FvZ8B03FLHuCWauhakrJWvuqXJ IAzx6qcf0+KoM/Z+p0yevvoMHHcWXQd9G+DAEZNcSZ1PohZsfWqg7Rw8JYFMdxVa2hk3Aua7cWVy9 bj2fR+gtIJvIcSYNs5397dHwzgh2FBbNb56PWa6jkU1Iw3oKPx/J3WQxg55XrNsblo0PVJ12GyJSa BmA06eJTfdo1vrvDdR2Og9lyQs8H2LUK6mI6Q4WkVyMDVlKZCnd7wev6oDgUbb9yMva78kGzeBNfN c1CvGrF4NltPJwnVGtyzRY9Rzval5a35nIeyFwo3yMb4VctCeyII/9pxOThd+SaREhiuXiK4wmjej 8zONTRrA==; Received: from hch by bombadil.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1jGf7B-0003Xw-12; Tue, 24 Mar 2020 08:40:49 +0000 Date: Tue, 24 Mar 2020 01:40:49 -0700 From: Christoph Hellwig To: Matthew Wilcox Cc: Andrew Morton , linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-btrfs@vger.kernel.org, linux-erofs@lists.ozlabs.org, linux-ext4@vger.kernel.org, linux-f2fs-devel@lists.sourceforge.net, cluster-devel@redhat.com, ocfs2-devel@oss.oracle.com, linux-xfs@vger.kernel.org, John Hubbard , William Kucharski Subject: Re: [PATCH v10 12/25] mm: Move end_index check out of readahead loop Message-ID: <20200324084049.GB32036@infradead.org> References: <20200323202259.13363-1-willy@infradead.org> <20200323202259.13363-13-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200323202259.13363-13-willy@infradead.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html 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 Mon, Mar 23, 2020 at 01:22:46PM -0700, Matthew Wilcox wrote: > From: "Matthew Wilcox (Oracle)" > > By reducing nr_to_read, we can eliminate this check from inside the loop. > > Signed-off-by: Matthew Wilcox (Oracle) > Reviewed-by: John Hubbard > Reviewed-by: William Kucharski Looks good, Reviewed-by: Christoph Hellwig