Received: by 2002:a05:6a10:c604:0:0:0:0 with SMTP id y4csp3717315pxt; Tue, 10 Aug 2021 09:42:41 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxtQud6pfdYA/+4B9etThjwguG4/X+ZTPbOQsWFOiGXQS9RwI+gh90pFjQWyDT54ciJ92rA X-Received: by 2002:a05:6e02:54c:: with SMTP id i12mr833156ils.103.1628613760958; Tue, 10 Aug 2021 09:42:40 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1628613760; cv=none; d=google.com; s=arc-20160816; b=Uvy5EpHQ0smrYSS8uMuW/fQvrmwk7O9/Iox/DyudV5rQhv335mD/Ilr44k9NnJIWeo 4jLDQMBnB6jXPi1iZL/sr3CdwhAymCUdzvp4/k6fRcwwaLVP2FpJ05WBPy69neN3Y4xJ /P9g5XEQcI00GOnKvv7pybXkWgDeFe0FuhclUomeOhmc7JqPxr6xybLkpNxPEmiNS0oH 5UKpP+dBtOKvQ1sHoQCU5mzWVwGOWjsOOewgwJwai4CMFjZsNALEjqs4fukZYSVeJyyL 2n76dczyUhymqGGwXQbGmPUl/JnXHfXTL7MM+rUhktwzJ2QnI7VOlyzwB0xvNb41cjo9 Y0UA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:message-id:date:content-id:mime-version:subject :cc:to:references:in-reply-to:from:organization:dkim-signature; bh=xkG9+GiNQSXsS2mvGI0+8aTZHN1rekkxhVtTcaqev5g=; b=mEDv3BTuxpd5e7q9L61iTsIDW/JZu+lYlJGJiOaBKivqImwBQKFbLI3mDw6kVysKdj c9/J6mC7ZIac+MNm8qR6j6GpQq1GVTLUegFLGybQwFXUeYOeH4bEAqhRKkP50s1NkBzp 2L7OemOJyepOb4C7o8K/DYlu2HkOh5ogaT4qFsH6JlBzXEpZPVwJQ+SsFSFYyVfy7MqP OmbM4g2TfwBy/D6Lpxed4Y+pEIjC6hN61b7wfWYunMUqGMxCh0tuc+lYr0QnZ3NQ38am Fau6v6tdajuN/AjmEwDEmRGYOOFXmaf1zcQcfQt1+4JrZm9/Ie+tyaAE/dT1bLermXXz +VHg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=B4zp0p6A; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id v18si21966168ilo.15.2021.08.10.09.42.29; Tue, 10 Aug 2021 09:42:40 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=B4zp0p6A; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243308AbhHJPhl (ORCPT + 99 others); Tue, 10 Aug 2021 11:37:41 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:57135 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243305AbhHJPhi (ORCPT ); Tue, 10 Aug 2021 11:37:38 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1628609836; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=xkG9+GiNQSXsS2mvGI0+8aTZHN1rekkxhVtTcaqev5g=; b=B4zp0p6AeLNKfS7LzmEbqBx1fkPyTRyj/FaI0NeR9DVG+NdNSBHFrqfVSLRpTtVZGiVogD YhUzm62AdKaAmVX1eC0yEnY8R/82Rt67ZZe+dadJFKX8625SdL5HblF4UZAsZ+5zo7ysvn ToftFHkpZs+uDLj7m4ml1yLzSXh/Vtc= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-168-xbRcxe2POzqqOpaWoKs11w-1; Tue, 10 Aug 2021 11:37:12 -0400 X-MC-Unique: xbRcxe2POzqqOpaWoKs11w-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 25E5F100CCB8; Tue, 10 Aug 2021 15:37:11 +0000 (UTC) Received: from warthog.procyon.org.uk (unknown [10.22.32.7]) by smtp.corp.redhat.com (Postfix) with ESMTP id 294EF7E205; Tue, 10 Aug 2021 15:37:09 +0000 (UTC) Organization: Red Hat UK Ltd. Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SI4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 From: David Howells In-Reply-To: <20210715033704.692967-26-willy@infradead.org> References: <20210715033704.692967-26-willy@infradead.org> <20210715033704.692967-1-willy@infradead.org> To: "Matthew Wilcox (Oracle)" Cc: dhowells@redhat.com, linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Christoph Hellwig , Jeff Layton , "Kirill A . Shutemov" , Vlastimil Babka , William Kucharski Subject: Re: [PATCH v14 025/138] mm/writeback: Add folio_wait_writeback() MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-ID: <1796580.1628609828.1@warthog.procyon.org.uk> Date: Tue, 10 Aug 2021 16:37:08 +0100 Message-ID: <1796581.1628609828@warthog.procyon.org.uk> X-Scanned-By: MIMEDefang 2.79 on 10.5.11.11 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Matthew Wilcox (Oracle) wrote: > wait_on_page_writeback_killable() only has one caller, so convert it to > call folio_wait_writeback_killable(). For the wait_on_page_writeback() > callers, add a compatibility wrapper around folio_wait_writeback(). > > Turning PageWriteback() into folio_test_writeback() eliminates a call > to compound_head() which saves 8 bytes and 15 bytes in the two > functions. Unfortunately, that is more than offset by adding the > wait_on_page_writeback compatibility wrapper for a net increase in text > of 7 bytes. > > Signed-off-by: Matthew Wilcox (Oracle) > Reviewed-by: Christoph Hellwig > Acked-by: Jeff Layton > Acked-by: Kirill A. Shutemov > Acked-by: Vlastimil Babka > Reviewed-by: William Kucharski Reviewed-by: David Howells