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=-8.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=ham 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 B49FDC4743C for ; Wed, 23 Jun 2021 07:47:43 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 6459C61350 for ; Wed, 23 Jun 2021 07:47:43 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6459C61350 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 2C5D28D0003; Wed, 23 Jun 2021 03:47:42 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 276428D0002; Wed, 23 Jun 2021 03:47:42 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 13F198D0003; Wed, 23 Jun 2021 03:47:42 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0009.hostedemail.com [216.40.44.9]) by kanga.kvack.org (Postfix) with ESMTP id D6F9D8D0002 for ; Wed, 23 Jun 2021 03:47:41 -0400 (EDT) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay05.hostedemail.com (Postfix) with ESMTP id 1A7B9181E7296 for ; Wed, 23 Jun 2021 07:47:42 +0000 (UTC) X-FDA: 78284209164.13.D244F3D Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) by imf25.hostedemail.com (Postfix) with ESMTP id 365D260019C1 for ; Wed, 23 Jun 2021 07:47:41 +0000 (UTC) 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=wUw1g0/VVyf211dDpWnMj9SGpNpwQj5eaZklh1OLBx8=; b=LfV+4IKhkaAjCYSU8QNQ669CRe U19YDuputEkXjh1Gw2yKG4vuXclY4Obnw05fsEBvAB6xHCmYBFvG68c/zB5lMe525eVsCEMmI/EbC E4WY3kuL+BxY7QTmOy2q3yN65gtEdRQfhmhXX6RcFRylIxdf5hGfD+e+31v5EImS+CXcywL0/wyTD Xy3ag9QOB6xixo00Th9spfkmqc8Xbf2Z7M7TCv+ZiOQseQrP3B+74nU0o7l+e7yplacYXyVLEi5/6 nteXx2z4z9vR3kwMYbocgnJdAo9e0Gpv4bSmLxA45eZ2XmsgRH2W5TOds/d7o+sbDIvzaLnK4dskW SpCjH8Qw==; Received: from hch by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1lvxb5-00FAr9-8W; Wed, 23 Jun 2021 07:47:02 +0000 Date: Wed, 23 Jun 2021 08:46:55 +0100 From: Christoph Hellwig To: "Matthew Wilcox (Oracle)" Cc: akpm@linux-foundation.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v12 01/33] mm: Convert get_page_unless_zero() to return bool Message-ID: References: <20210622114118.3388190-1-willy@infradead.org> <20210622114118.3388190-2-willy@infradead.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210622114118.3388190-2-willy@infradead.org> X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 365D260019C1 Authentication-Results: imf25.hostedemail.com; dkim=pass header.d=infradead.org header.s=casper.20170209 header.b=LfV+4IKh; spf=none (imf25.hostedemail.com: domain of BATV@casper.srs.infradead.org has no SPF policy when checking 90.155.50.34) smtp.mailfrom=BATV@casper.srs.infradead.org; dmarc=none X-Stat-Signature: mg8nikn19hqoqawd4pad1kcuw8ekbp3q X-HE-Tag: 1624434461-886321 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 Tue, Jun 22, 2021 at 12:40:46PM +0100, Matthew Wilcox (Oracle) wrote: > atomic_add_unless() returns bool, so remove the widening casts to int > in page_ref_add_unless() and get_page_unless_zero(). This causes gcc > to produce slightly larger code in isolate_migratepages_block(), but > it's not clear that it's worse code. Net +19 bytes of text. > > Signed-off-by: Matthew Wilcox (Oracle) Looks good, Reviewed-by: Christoph Hellwig